Search Results

Free Essays
Unrated Essays
Better Essays
Stronger Essays
Powerful Essays
Term Papers
Research Papers

Your search returned over 400 essays for "signal"
1  2  3  4  5    Next >>

These results are sorted by most relevant first (ranked search). You may also sort these by color rating or essay length.

Title Length Color Rating  
The Signal-Man By Charles Dickens - The Signal-Man By Charles Dickens Dickens gives a description of the railway cutting with intricate detail and encompasses it with a cloud of gloomy and a depressive mood. He associates places and objects with certain impressions which produce this large image of negative and horrifying vibes and feelings. When the narrating character has the first acquaintance of the railway cutting and signalman's box, Dickens bombards you with adjectives and depictions of a morbid and 'depressing' atmosphere....   [tags: Charles Dickens Signal man Essays] 382 words
(1.1 pages)
FREE Essays [view]
The Impact of Digital Signal Processing - There are a great number of applications for Digital Signal Processing and in order to better understand why DSP has such a large impact on multiple aspects of society, it helps to better understand the wide variety of applications it can be used for. Here we will briefly look into the following applications of Digital Signal Processing and their uses; speech and audio compression, communications, biomedical signal processing and applications in the automobile manufacturing industry. Li Tan [1] goes into detail with each of these applications in his book, Digital Signal Processing, and explains how each are used on a daily basis....   [tags: Economic Impact of Wireless Technology]
:: 5 Works Cited
2171 words
(6.2 pages)
Term Papers [preview]
The Reference Signal Model - Eye movements are often made over a stationary background, which means that the retinal image contains information about eye velocity. Reference signal models therefore combine extra-retinal, retinal and vestibular information to generate a single compound signal. Since retinal motion generating extra-retinal information is somewhat contradictory, the extra-retinal signal of the classical model is replaced by a reference signal (Wertheim, 1994). Figure 2.3 presents a schematic for a simple reference signal model, which does not include vestibular information....   [tags: Medical Science] 1731 words
(4.9 pages)
Powerful Essays [preview]
Noninvasive Vital Signal Detector - The purpose of the noninvasive vital signal detector is to detect the heart and respiration rate while displaying the information through wireless technology in your home environment. Compared to the conventional monitoring instruments such as electrocardiograms (ECGs) and apex cardiograms (ACGs), this device must be more affordable and portable while it still maintains a certain degree of accuracy as compared to the ECGs and ACGs. Electrocardiography is a noninvasive recording of the electrical impulses that originates from the sinoatrial node of the heart that is detected by electrodes placed near the heart....   [tags: Medical Science] 2548 words
(7.3 pages)
Powerful Essays [preview]
The pulse code digitization and companding on a signal - AIM The main aim of this project is to demonstrate the pulse code digitization and companding on a signal and to observe the effects of sampling depths and companding on the signal to noise ratio (SQR). INTRODUCTION PCM- In the pulse code modulation (PCM), the signal is a digitally represented analog signal in which the signal magnitude is sampled with uniform intervals. Each sample is quantized to the closest value of the digital signal. In the pulse code modulation, the signal is binary. The two possible states represented in PCM are logic 1(high) and logic 0 (low)....   [tags: Technology, Electronics] 1216 words
(3.5 pages)
Unrated Essays [preview]
The Signal Man - The Signal Man Through out the story Dickens has created a sense of horror and suspension in his description of the setting, landscape, physical surroundings and the weather conditions. At the start of the story the signal man hears a voice shouting down to him from up above, instead of looking up in the direction he heard the voice coming from, he turned himself about and looked down the line. This seems rather odd as you would normally look to where you heard the voice. The man shouting down to him, was on a high cliff and he was steeped in the angry glow of a sunset and the signal man’s figure was foreshortened and shadowed, down in the deep trench so it was rather awkward for the man to...   [tags: English Literature] 1784 words
(5.1 pages)
FREE Essays [view]
The Signal Man - Charles Dickens has created this short story by building tension and climax from the start to the end. One of his many ways of building tension is through his descriptive passages and dark-toned speech of the Signal man - and occasionally the narrator. There is a very powerful opening as the Narrator shouts "Halloa. Below there!", which are key words throughout this chilling short story. The exclamation marks at once produces an alarming suspense and raises tension as the reader cannot acknowledge which character speaks....   [tags: English Literature] 1465 words
(4.2 pages)
FREE Essays [view]
Traffic Signal/Road Marking Detection and Processing - Traffic Signal/Road Marking Detection and Processing Humans have visual cues that they naturally use to perceive their motion through the environment. There are numerous human factors that are associated with being able to navigate a vehicle safely while adhering to signal lights, signs and other traffic road markings. There needs to be vast improvement in the way that information is presented to drivers for many reasons. One example is that the placing of the sun during a particular part of the day prohibits one from distinguishing whether a traffic light is green or red....   [tags: Driving Traffic Signals Argumentative Essays]
:: 8 Works Cited
1871 words
(5.3 pages)
FREE Essays [view]
Suspense - The Signal Man - Suspense - The Signal Man The author of The Signal Man immediately creates suspense by using anonymous quotes, which gives a sense of mystery. Dickens begins by avoiding using terms that identify ownership, i.e. “When he heard a voice thus calling to him”. The 2nd person in the story is the signal man, who at this point is acting in a very peculiar manner. This produces suspicion amongst the reader and thus generates interest or suspense. Throughout the entire novel, Charles Dickens is using language that is very obviously uncomfortable, i.e....   [tags: English Literature] 623 words
(1.8 pages)
Better Essays [preview]
Human Health: Understanding the Activity of Signal Pathway - The research, in this article, is significant to human health because the understanding of the activity of a signal pathway can or cannot give you a grasp on how it can affect other processes in the body. If the effects are known and understood, then we can know how to treat and/or modify the processes and give a discovery in the field of science. Specifically, in this article, understanding the structure of chromatin is vital to understanding how it affects replication, transcription, and repair....   [tags: Chromatin, histone acetylation, chemotherapy]
:: 2 Works Cited
901 words
(2.6 pages)
Better Essays [preview]
The 25U Soldier in a Mobilized Army: Job of the Signal Support Systems Specialist - The 25U Soldier’s job title is Signal Support Systems Specialist. Some of that Soldier’s job duties may include: installing, maintaining, and troubleshooting signal support equipment, radio systems, and data distribution systems; provides technical support and training for users. A Noncommissioned Officer’s (NCO) duties may include: supervising, installing, maintaining, and troubleshooting signal support systems, radio systems, and battlefield automated systems; provides training and unit technical assistance; prepares maintenance and supply requests....   [tags: military, army, deployment] 1141 words
(3.3 pages)
Strong Essays [preview]
What's Radio Frequency Energy - Radio frequency energy is the energy transmitted by sources that can generate electromagnetic fields like TV signals, radio signal, wireless networks and cell phone towers, by using specially designed circuits connected to a an antenna this electromagnetic energy can be harvested and converted into a usable DC voltage. One of the applications of this technology is in radio frequency identification tags in which harvesting device can receives an RF signal from a sensing device; this RF signal can supply enough power to let the RFID tag to send radio frequency back including identification information to any item of interest....   [tags: TV signal, radio signal, wireless network]
:: 8 Works Cited
1438 words
(4.1 pages)
Powerful Essays [preview]
Crowdsourcing: Carry out Work and Outsource it to a Crowd of Workers - Crowdsourcing was firstly used by Jeff Howe in an article "The Rise of Crowdsourcing". It takes the form of getting work or funding, usually online, from a crowd of people. The word is a combination of the word's 'crowd' and 'outsourcing'. The idea is to carry out work and outsource it to a crowd of workers. In other words, it is a modern way to encourage a large number of people and their resources to collect and share processed information to solve tricky problems and providing some sort of localized information....   [tags: crowdsourcing, opensignal, weather signal]
:: 1 Works Cited
690 words
(2 pages)
Better Essays [preview]
Countless Means of Communication: Animal Communication - Everywhere people have pondered over the communication and language abilities among nonhuman animals. Watching these creatures, it is apparent that they have many ways of communicating with one another, but some would argue that the complex language of humans makes them the most superior beings on Earth. Now after many studies, one may discover that humans are really no different than the rest of the animal kingdom. Background Animals have a wide variety of ways they communicate with each other....   [tags: uditory, visual, or olfactory signal]
:: 6 Works Cited
940 words
(2.7 pages)
Better Essays [preview]
Mystery and Menace in Black Veil and Signal Man - If you are setting this submission as Premium, then please enter a short description of what the essay is trying to achieve. Word Count. Compare how Dickens creates a sense of mystery and menace in the ‘Black Veil’ and the ‘Signal Man’. Explain how he uses these theories to explore his theme. The opening of both stories are quite different. The Black Veil is written in the third person and The Signal man is written in the first person narrative. The Black Veil creates an atmosphere of cosiness and warmth which is created by the items of clothing which are worn by the doctor....   [tags: English Literature] 2169 words
(6.2 pages)
Powerful Essays [preview]
The Darkness Out There - The Signal Man - A comparetive study - The Darkness Out There - The Signal Man - A comparetive study The mood at the beginning of both stories could not contrast any more than it does. 'The Darkness Out There' has a beginning that is summery and fresh. Whereas 'The Signal Man' has a start that is very eerie and creates a sense of fear. A factor that runs all the way through the story. The effect that the beginning of 'The Darkness Out There' has is that Mrs Rutter's story hits the reader when they are not expecting it making it a lot more shocking....   [tags: English Literature] 1032 words
(2.9 pages)
FREE Essays [view]
Is Television that Needed Now? - “I find television very educating. Every time somebody turns on the set, I go into the other room and read a book.” ― Groucho Marx Introduction: In today's modern world, television is the most popular and recognized form of media and most homes in the western and developed worlds own one. That small (in some cases rather large) box sitting in your lounge is your connection to the outside world. It is an indispensable item and many of us cannot imagine life without it. The TV can be good such as to bring news to us when it matters....   [tags: tv signal, lcd and plasma, bbc]
:: 5 Works Cited
1071 words
(3.1 pages)
Strong Essays [preview]
HOW DOES CHARLES DICKENS CREATE SUSPENSE IN THE SIGNAL MAN? - HOW DOES CHARLES DICKENS CREATE SUSPENSE IN THE SIGNAL MAN. Dickens creates suspense in 'the signal man' by keeping us interested in a number of ways. He portrays the mysterious and deadly setting, the introduction of the signal man and the impression of the narrator fully. He also describes the spooky sight of the first ghost, the unusual second appearance of a ghost and the death aboard the train. Dickens presents the setting of his story vividly. Often, he uses such personification as "angry sunset"; to show that the narrator may be angry as the sun would be blazing down in his eyes....   [tags: English Literature] 1101 words
(3.1 pages)
Strong Essays [preview]
Compare the signal man by Charles Dickens and if she bends, she - Compare the signal man by Charles Dickens and if she bends, she breaks by John Gordon Introduction ============ In my essay I intend to compare the similarities and differences of many aspects of 2 short stories. "The signal man" a pre 20th century story by Charles Dickens and "If she bends she breaks" a post 20th century story. By John Gordon. They are naturally different because of their age. The signal man is pre20th century and is typical of the style of story from that era. If she bends she breaks is post 20th century so it has more modern words and is aimed at a younger audience....   [tags: English Literature] 1600 words
(4.6 pages)
FREE Essays [view]
Noise Cancelling Headphones Analysis - An earphone which has active noise cancelling technology, features a mic around the ear-piece to identify the incoming noise impulses of the outside (undesirable) noises. A battery power driven smart circuit produces the upside down waves actively, and provides it into the audio signal which is sent to the ear canal. The produced audio signal functions to block out the backdrop noises from the outer sources. Audio energy is actually a wave-form. Therefore, in conceptual stipulations, if a couple of audio wave-forms hold the precise mirror impression of one another, whenever added alongside one another they terminate one another away, and so the outcome is absolutely no sound at all....   [tags: earphone, audio signal, cancelling technology]
:: 7 Works Cited
1955 words
(5.6 pages)
Powerful Essays [preview]
Performance Evaluation of Discrete Wavelet Transform Architecture - Discrete wavelet transform has an inherent time-scale locality characteristics which provided an efficient tool for various fields like signal compression, signal analysis, etc. This led to the development of various architectures that implements DWT. The original pixels are highly correlated, thus applying the compression algorithms directly does not provide an efficient compression ratio. Hence, DWT is applied which is a powerful tool to de correlate the image pixels. The 2-D wavelet filters which are separable functions, is implemented first by row-DWT and then column DWT which produces four sub band namely LL, LH, HL and HH in every decomposition level....   [tags: pixels, signal analysis, high speed data]
:: 1 Works Cited
1302 words
(3.7 pages)
Strong Essays [preview]
Knowledge Based Expert System in Transportation Engineering and Traffic Adaptive Signal Control System - Knowledge Based Expert System in Transportation Engineering and Traffic Adaptive Signal Control System I. Abstract Advances in computer technologies have been changing transportation field. Based on those, Intelligent Transportation System has been proposed and being developed for the next generation transportation system. This system requires more utilization of Artificial Intelligence, such as Knowledge Based Expert System, than current one. Although Knowledge Based Expert System has not been robustly studied in the field of transportation, it is suggested to be implemented in Traffic Adaptive Signal Control System as a part of Intelligent Transportation System....   [tags: Traffic Control Light Artificial Intelligence] 1484 words
(4.2 pages)
Powerful Essays [preview]
The Signal-Man and The Monkey's Paw - How do the writers create a sense of suspense. Fictional text need to be interesting so that the reader likes it. Many writers use many different things to capture their reader’s interest. Both Charles Dickens and WW Jacobs, in the Signalman and the monkeys paw both use different ways to try and keep the interest of their reader. The Signalman and the Monkey paw, are very similar both are horror stories set in 0ne location with very few characters. Even though they seem similar, they are actually told in different styles....   [tags: Free Essay Writer] 1243 words
(3.6 pages)
FREE Essays [view]
Analysis of Sherman Alexie's The Lone Ranger and Tonto Fistfight in Heaven and Smoke Signals - Analysis of Sherman Alexie's 'The Lone Ranger and Tonto Fistfight in Heaven' and 'Smoke Signals'      Sherman Alexie based on some short stories included in his book, 'The Lone Ranger and Tonto Fistfight in Heaven,' wrote the screenplay for the movie 'Smoke Signals.' Both the movie and the book portray problems that Indians had to deal with, and how they dealt with it. The book is far more complex than the movie, showing a wider variation of characters facing different situations.      In the movie there is Victor, the main character, which tries to be the typical Indian, or maybe just a typical man....   [tags: Alexie Lone Ranger Smoke Signals Essays]
:: 2 Works Cited
598 words
(1.7 pages)
Better Essays [preview]
Smoke Signals: Opening a New and Better Past - In the movie Smoke Signals, based on a collection of short stories by Sherman Alexie, a young man named Victor must change his ways of thought or be consumed by the rage, sorrow, and depression of his father leaving his mom and him alone on the Coeur d’ alene Indian reservation in Idaho. Numerous years later Victor’s father is reported to have died in his trailer in Phoenix, Arizona. Victor must collect his father’s remains and bring them home. As you read this you will see that this trip will change Victor for the greater good....   [tags: Smoke Signals, ] 666 words
(1.9 pages)
Better Essays [preview]
Signs, Symbols and Signals of the Underground Railroad - Signs, Symbols and Signals of the Underground Railroad A journey of hundreds of miles lies before you, through swamp, forest and mountain pass. Your supplies are meager, only what can be comfortably carried so as not to slow your progress to the Promised Land – Canada. The stars and coded messages for guidance, you set out through the night, the path illuminated by the intermittent flash of lightning. Without a map and no real knowledge of the surrounding area, your mind races before you and behind you all at once....   [tags: U.S. History]
:: 6 Works Cited
3218 words
(9.2 pages)
Term Papers [preview]
The Use of Petri Nets to Model Traffic Signals at Intersections - Introduction This paper focuses on the use of Petri nets to model traffic signals at intersections. An eight-phase traffic signal controller is illustrated in this paper. Also, structural analysis of the control Petri net is performed to show that it endorses traffic safety. It also discusses how this tool can be used with more advanced technologies in the future. The following paper will review the G.F. List, and M. Cetin, Modeling Traffic Signal Control Using Petri Nets, IEEE Transactions on Intelligent Transportation Systems, 5(3), 2004, 177-187 paper and also discuss the possible extension of the paper....   [tags: movements, red lights, controllers]
:: 1 Works Cited
885 words
(2.5 pages)
Better Essays [preview]
Transmission of Pain Signals by the Brain at the Spinal Level - Transmission of Pain Signals by the Brain at the Spinal Level Pain has been defined by Coates & Hindle as an unpleasant emotional and sensory experience which signals a potential or actual damage to tissues (2011, p. 213). Pain is a common human experience and can emanate from injury and illness. There are two main types of pain; acute pain is short-lived, lasting for minutes or several days and its onset often takes place rapidly. It results from the activation of pain nerve endings or nociceptors either by internal or external pain stimuli....   [tags: Anatomy, The Central Nervous System] 2035 words
(5.8 pages)
Strong Essays [preview]
Future of Signals Analysis - FUTURE OF SIGNALS ANALYSIS Protocols for transferring data, information, or any other signals communication have dramatically changed. Breakthrough technology has changed the way signals are transmitted, collected, analyzed and distributed. Technology has exceeded well beyond first generation robust computers to third and forth generation supercomputers that are small enough to fit in a person’s shirt pocket. Signals analysts are expected to engage and explore the realms of the unknown and conquer it with decisive and accurate analysis....   [tags: essays research papers] 597 words
(1.7 pages)
FREE Essays [view]
Effectiveness of Signals Intelligence - EFFECTIVENESS OF SIGNALS INTELLIGENCE Signals Intelligence (SIGINT) has access to many traditional and non-traditional dynamic elements that provide superior capabilities to collect and monitor visual, seismic, and acoustic signatures of motorized vehicles. SIGINT is the only system that can be operational and maintainable in any type of climate and terrain, which provides an advantage over the United States’ (U.S.) adversaries. The process of obtaining the intelligence starts with the collection of any type of signal, whether it be infrared, electro-optical, or electronic....   [tags: essays research papers fc]
:: 1 Works Cited
1132 words
(3.2 pages)
FREE Essays [view]
16QAM and Hexagonal 16QAM Optical Transmitter Using a Dual-Driven IQ Modulator Driven by 4 Binary Signals - Thanks to the advances of digital signal processing, high-order modulation formats signals with coherent detection provide more spectrally efficient optical transmission systems. Dual polarization (DP) quadrature phase shift keying (QPSK) operating at 100 Gb/s with receiver digital signal processing (DSP) are now commercially available [1]. 16-ary quadrature amplitude modulation (16-QAM), doubling the spectral efficiency (SE) further to 4 bit/s/Hz [2], become the potential candidate for next generation optical transmission system beyond 100Gb/s per channel....   [tags: Information Technology ]
:: 8 Works Cited
1201 words
(3.4 pages)
Strong Essays [preview]
How are nonverbal signals sent by casual dress in the workplace? - How are nonverbal signals sent by casual dress in the workplace. Business Communication Apr 11, 2005 How are nonverbal signals sent by casual dress in the workplace. The phenomenon of casual dress in the business place has come full circle. Many companies are now moving away from casual dress. Many business leaders have come to realize that the nonverbal signals sent by casual dress, conflict with the image the company is attempting to portray. A trend that was seeing more and more companies opting for casual dress, now has companies considering a complete withdraw from this popular business fashion....   [tags: essays research papers] 1123 words
(3.2 pages)
Better Essays [preview]
Effective Body Language and Its Effects on Job Interviews - Effective Body Language and Its Effects on Job Interviews Body language—the word speaks for itself; it is a form of communication done by our body. It is consisted of nonverbal signals that are given off by certain movements, bodily displays or facial expressions, though all nonverbal signals are not limited only to them. As much as 90% of human communication is done in a non-verbal manner(Mihram, n.d); our subconscious mind—or the primitive mind of human beings, is responsible for this....   [tags: non verbal signals, gestures]
:: 5 Works Cited
867 words
(2.5 pages)
Better Essays [preview]
Smoke Signals - The movie Smoke Signals is based on the series of short stories written by Sherman Alexie. Just like any movie, there is a meaning to it. Before this movie, when I thought of the phrase "Native American" I thought of things like feathers and societies that were impeccable. But after watching the movie, Smoke Signals, it portrays what being a Native American really means. It is not all fun and games. The protagonist, Victor Joseph, has many hard aspects of his life, but throughout it all he grows mentally....   [tags: Movie Review, Film Review] 782 words
(2.2 pages)
Better Essays [preview]
Brain Computer Interface Technology - Keywords—component; Artificial Intelligence, BCI, Robot, EEG, Fuzzy Systems. I. INTRODUCTION Brain Computer Interface (BCI) is method to convert brain activities signal to understandable action for machine or robot or any actuator, one of the commonly method to get brain activities is electroencephalography (EEG) system which is easier and low cost and also non-invasive method compare to other brain computer interface systems [1], [2]. In Recent researches of non-invasive brain computer interface based on EEG to control actuators result of create some equipment that controlled with brain, for example electrical wheelchairs [3], mobile Robots [4], humanoid robots [5]....   [tags: EGG, signals, electrode, brain activity, robots]
:: 7 Works Cited
2268 words
(6.5 pages)
Term Papers [preview]
Smoke Signals by Sherman Alexie - Smoke Signals by Sherman Alexie Smoke Signals is a movie written by Sherman Alexie and directed by Chris Eyre that deals with many social issues in modern Native American cultures. The film follows the journey of two Coeur d’Alene Indians, Victor and Thomas, as they travel from their reservation in Oregon to Phoenix, AZ in order to gather the personal artifacts of Victor’s father who has recently died. Along the way, Thomas helps Victor to understand and forgive his father, who left the family when Victor was a young boy....   [tags: Movies Native Americans History Papers] 2631 words
(7.5 pages)
Powerful Essays [preview]
The Smoke Signals Forgiveness - The Smoke Signals Forgiveness Smoke Signals, written by Sherman Alexie and directed by Chris Eyre, begins on July 4, 1976 on the Coeur d’ Alene Reservation. Arnold Joseph (Gary Farmer), drunk while celebrating the "independence", lit off a firework and set the Builds-the-Fire residence on fire, killing the parents of Thomas Builds-the Fire. Many people were already asleep in the house when the fire started, so no one saw Arnold’s mistake, which he kept a secret from the whole reservation. Both Thomas Builds-the-Fire (Evan Adams) and Victor Joseph (Adam Beach), Arnold’s son, were saved from the burning house....   [tags: Sherman Alexie Films Movies Media Essays] 1463 words
(4.2 pages)
Powerful Essays [preview]
Movie Smoke Signals - Movie Smoke Signals For most of my life, the word “Native American” had immediately made me think of feathers, powwows, and a society uncorrupted by civilization. However, in watching the movie Smoke Signals, a movie that depicts the modern Native American culture, I learned many other things. For one, I learned that many of the customs that modern Native Americans have are very similar to my own. I also saw that the family life of the Native Americans in the film had many of the same problems that my family had undergone in the past years....   [tags: Analysis Movie Film Native Americans Essays] 565 words
(1.6 pages)
Unrated Essays [preview]
The Role of Body Language in Communication - Introduction Non-verbal communication refers to “all external stimuli other than spoken or written words and including body motion, characteristics of appearance, characteristics of voice and use of space and distancing. All these non-verbal clues taken together are also known as body language. Body language plays significant role in oral communication. Sigmund Freud’s observation may appear to be an exaggeration but it is the exaggeration of a vital truth: “He that has eyes to see and ears to hear may convince himself that no mortal can keep a secret....   [tags: nonverbal signals, gesture, posture]
:: 9 Works Cited
1797 words
(5.1 pages)
Powerful Essays [preview]
Communication Skills in the Workplace - When people talk about what is the most important skill that you can have in the workplace, the answer would be communication skills. If you do not have good communication skills, your work will become really hard to do, because good communication skills can help the message sender easy transfer signals/messages to the audience. Also a good communication skills will let your co-workers and your boss highly appreciate you. I also did some research about communication. I interviewed and asked some questions to my native friends Pakou Vang and Ashley....   [tags: signals, messages, speaking]
:: 2 Works Cited
1029 words
(2.9 pages)
Strong Essays [preview]
Analog and Digital Signalling - Part 1: General Review of Signalling a.) Explain the fundamental differences of analog and digital signalling. Baher (2001, p. 2) states that the natural world we live in, as well as most artificial sources, produce signals which we have grown accustomed to consider mainly of the analog type. This means that the signal f (t) is defined, somehow, for all values of the continuous variable t, and its amplitude can assume any value of a continuous range. Such a signal is referred to as an analog signal....   [tags: Signalling, electronics,] 1245 words
(3.6 pages)
Strong Essays [preview]
Wireless Communication Technology - In this part of the assignment I am firstly going to explain the effectiveness of Wireless Communication, its advantages and disadvantages. This will include the different types of Wireless technologies and how they will make transmitting data easier or harder than ever. Also I will talk about Wired communication which is one of the older technologies but now we have several different types of media forms on wired communications and they all do a different job. Wireless Technologies could be satellite links or Radio communication....   [tags: technologies, systems]
:: 2 Works Cited
907 words
(2.6 pages)
Strong Essays [preview]
Word-Based Information Retrieval - Searching documents using keywords is a very common practice. This practice of word-based information retrieval is affected by two complimentary problems. First is, we may get some relevant as well as some irrelevant search results if we use the keyword along with some possible meaning of the same for the search. Second is, if only the title keyword is used then some relevant text may miss out as some times the text related to that keyword doesn’t contain that rather contains some context of that....   [tags: keywords, word sense disambiguation]
:: 3 Works Cited
2553 words
(7.3 pages)
Research Papers [preview]
The Communication System From Load Cell to PC - This system illustrates the communication system from load cell to PC. The laboratory’s 6-axis load cell is usually composed of four strain gauges in a Wheatstone bridge form. This device produces an output signal in the order of a few millivolts. Thus, an instrumentation amplifier is used to amplify the signal before feeding it to an ADC. Moreover, this system should use a low-pass filter to pass the low-frequency signals and to avoid interference from high-frequency noises. Afterwards, all the 6 channels are measured simultaneously by time division multiplexing method....   [tags: System Analysis] 1240 words
(3.5 pages)
Strong Essays [preview]
Implementation of Efficient Channel Estimation Method - Adaptive Filter is a part of Digital signal system which is widely used in the modern communication system. The basic application of adaptive filter such as adaptive noise cancellation, channel equalization, system identification and adaptive beam forming. So its implementation is a great deal and that much important field in digital system world. As we know intersymbol interference (ISI) caused by the multipath in band limit frequency selective time dispersion channel distort the transmitted signal....   [tags: lms algorithm, adaptive filter, digital system]
:: 18 Works Cited
1541 words
(4.4 pages)
Powerful Essays [preview]
Electronic Design for the Time Measurement of a TV Channel - Electronic Design for the Time Measurement of a TV Channel This paper presents a designing an electronic circuit to measure the total time period of a particular TV channel usage. Thus, this circuit will determine usage time of all the available channels. This is going to be very much important to the TV broadcasters, since they concern about number of customers and maximum usage of their TV programs in every day. All these choices influence whether enough people can be attracted to justify a particular channel....   [tags: Electronics Technology] 1470 words
(4.2 pages)
FREE Essays [view]
The Quality of Wireless Fidelity and Its Accessibility - Wi-Fi is a technology that allows the interchange of data and connection to the internet using radio waves. The name Wi-Fi was a brand name which in English is a synonym of the word "WLAN" (Wireless Local Area Network). The Institute of Electrical and Electronic Engineers (IEEE) defines it as any WLAN products on their 802.11 standards that complete the Wi-Fi Alliance interoperability certification test may only use the “Wi-Fi Certified” Trademark. As of today, more and more devices are starting to use the Wi-Fi technology like laptops, Smartphones, and other media devices....   [tags: technology, connection]
:: 6 Works Cited
1408 words
(4 pages)
Better Essays [preview]
Wireless Channel Models - Wireless Channel Models [1][2] Various models have been used to represent the characteristics of wireless channels. Some models treat wireless channels in the same manner wired channels are under strict limitations to obtain high simplicity in the analysis. Other models have higher complexity to accommodate for actual conditions in wireless channels. The most common models used for wireless channels include the Additive White Gaussian Noise (AWGN) channel model, the Rayleigh channel model and the Rician channel model which are shown in figure 1....   [tags: Technology ] 1424 words
(4.1 pages)
Powerful Essays [preview]
Atmosphere in Charles Dickens' The Signalman - Atmosphere in Charles Dickens' The Signalman 'The Signal-man' is a ghostly thriller by Charles Dickens. Based on an apparently hallucinating signal-man and the tales of his hallucinations, the story is seen through the eyes of the narrator, a man told of the signal-mans troubles during conversations with the signal-man himself. From the beginning of the story, the atmosphere is both eerie and gloomy. To produce this type of atmosphere, Dickens had to draw on several different aspects of English literature-mostly through description and use of language....   [tags: Papers] 807 words
(2.3 pages)
Unrated Essays [preview]
Advanced Pre-Warning System in Railways - A Seminar Report on Advanced Pre-Warning System in Railways Contents: Introduction………………………………………………………………………………………………………3 EXISTING PROTECTION SYSTEMS……………………………………………………………………….3hy OVERVIEW………………………………………………………………………………………………………..4 CONSTRUCTION………………………………………………………………………………………………..4 RFID Reader…………………………………………………………………………………………….5 FLIR Camera…………………………………………………………………………………………….5 Transmitter……………………………………………………………………………………………..6 Receiver………………………………………………………………………………………………….6 Main System…………………………………………………………………………………………..7 Working……………………………………………………………………………………………………………8 Constraints and Research Work………………………………………………………………………10 Conclusion………………………………………………………………………………………………………10 Refere...   [tags: protection systems, cameras, pre-warning]
:: 3 Works Cited
1360 words
(3.9 pages)
Strong Essays [preview]
Very Small Aperture Terminal (VSAT) Communication Networks - Very Small Aperture Terminal (VSAT) Communication Networks Introduction Very Small Aperture Terminal (VSAT) communication networks are a form of satellite communication where business and industry can transmit data, voice and video around the world through a satellite link. Companies such as Walmart use VSATs to process data to and from their stores nationwide (Lawton, 1994). Understanding the basics of what constitutes a VSAT network and how it operates will establish a basis of knowledge to expand on the various applications....   [tags: Technology]
:: 1 Works Cited
2067 words
(5.9 pages)
Term Papers [preview]
The following piece of work is an analysis of the short story called - The following piece of work is an analysis of the short story called the signalman by Charles dickens. “The signal man” is set in the mid 19th century. The main setting is that of right beside a train tunnel where the main character the signal man stays to let trains through etc.The storyline is set mostly in the night time. The story has an eerie effect on me as a reader. While I was reading the signal man I picked up on the tense atmosphere. At one point early on in the story, there’s a moment which brought the tension to the story in a strong way....   [tags: English Literature] 796 words
(2.3 pages)
Unrated Essays [preview]
New Wavelet Based Image Denoising Method - Image Processing is any form of signal processing for which the input is an image or video frame; the output of image processing is set of parameters related to the image. The goal of our research presents a new wavelet based image denoising method to be compared with curvelet denoising and contourlet denoising. The Multi resoulution Analysis (MRA) transformation is implemented using the three transforms, Wavelet Curvelet and Contourlet. The wavelet transformation algorithm is implemented to compresses the essential information in a signal into few, large coefficients with in time and frequency transformation....   [tags: SNR, image processing, contourlet]
:: 9 Works Cited
2098 words
(6 pages)
Term Papers [preview]
Sound Level Meters - Testing and validation are indispensable steps in the development of software platforms designed to emulate hardware components. Since modern sound level meters rely heavily on digital signal processing for sound analysis, it seems reasonable to expect that results of equal or greater accuracy can be realized on computer platforms. Requirements for precision measuring instruments are specified in the international standard IEC 61672-2003 – Electroacoustics – Sound Level Meters. The Standard is applicable to selfcontained or multi-component analogue and digital hardware systems, only briefly mentioning computer software as a provisional part of the instrument for displaying results and limite...   [tags: Information Technology ] 1167 words
(3.3 pages)
Strong Essays [preview]
Comparing "The Red Room" and "The Signalman" - There are many comparisons that can be made with ‘The Red Room’ and ‘The Signal-man’ by H.G. Wells and Charles Dickens respectively. I am going to examine some of these comparisons as well as analyse these two stories. These two stories are both classified in the Gothic genre. This was very well-liked in the Victorian industrial revolution, towards the end of the 1800s. Both were also written around the time of the industrial era. Science, particularly physics, was beginning to take over in working terms; people were now unable to work because most jobs were becoming motorised: thanks to the new technological advances....   [tags: Literary Analysis] 1877 words
(5.4 pages)
Powerful Essays [preview]
Transmission of Information through a Photonic Link - Transmission of Information through a Photonic Link Introduction As civilizations rose they noticed the sun as they received the light it sent to them, because of this a fascination arose for light. Eventually the human mind and technology progressed to such experiments as those of Alexander Graham’s use of light in a photophone, a transmitter of voice using the sun as a transmitter. However unlike Graham’s experiment, modern technology provides a new level of communication in this experiment....   [tags: Technology Solar Sun] 1200 words
(3.4 pages)
Better Essays [preview]
Using Electroencephalography as a Method of Computer Input - Abstract — There are a number of people in the world who suffer from disabilities which prevent them from being able to use traditional means to control a computer. For these people, alternate forms of input are required. One potential input device is an Electroencephalography machine which can be used to detect patterns of brain activity and use these patterns to trigger events on a computer such as mouse clicks or keyboard presses. This allows those without the use of their hands to be able to control a computer without invasive surgery....   [tags: Computer Technology]
:: 5 Works Cited
1291 words
(3.7 pages)
Strong Essays [preview]
Exploring Eye Motion and Models of Head Centered Motion Perception - 1.4 Combining Afferent and Efferent Signals: Models of head centred motion perception. Sensory signals relating information about our physical movements, as well as information regarding external object motion, are required in order to preserve a stable and accurate view of the world, and estimate external motion. Space constancy is the visual system’s ability to maintain a view of the outside world that does not jump about and move with an eye movement (Deubel, Bridgeman, & Schneider, 1998; Stark & Bridgeman, 1983)....   [tags: biology] 1508 words
(4.3 pages)
Powerful Essays [preview]
AM Radio Design - Objective: The objective of this lab is to design and AM Radio. Introduction: Am radio uses Amplitude Modulation (AM), which works by varying the strength of the transmitted signal in relation to the information being sent. When you tune into an AM radio station, for example 1560 on the AM dial the transmitter’s sine wave is transmitted the data at 1560,000 hertz. What this number essentially means is that the sine wave repeats every 1560,000 times per second. The data is modulated onto the carrier wave by changing the amplitude of this sine wave....   [tags: Engineering Radio Design ] 1780 words
(5.1 pages)
FREE Essays [view]
GPS - Global Positioning System - What is GPS. The Global Positioning System (GPS) was developed by the Department of Defense and consists of a group of 24 satellites which are monitored by five ground stations. It essentially allows you to pinpoint your location anywhere on the surface of the Earth, even in cloudy weather, with the use of a GPS receiver. The GPS receiver is a navigational device that uses these satellites as reference points to calculate your position on the ground. It does this by triangulating your position between at least 3 satellites....   [tags: physics global positioning systems] 1095 words
(3.1 pages)
Strong Essays [preview]
Receptor Protein - Receptor Protein – Protein that binds to a specific single molecule, enabling the cell to respond to the signal molecule. i.e. – The muscles of a person exercising can not contract without receptor proteins and signal molecules that tell the muscles when to contract and when to relax. Second Messenger – Signal molecule produced in response to the binding of a chemical signal. Acts as a signal molecule in the cytoplasm. Signal Molecule – Carries information throughout the body and to other cells....   [tags: essays research papers] 331 words
(0.9 pages)
FREE Essays [view]
Lord of The Flies by William Golding - Civilization vs. savagery, reason vs. impulse, order vs. chaos, law vs. anarchy, or the broader heading of good vs. evil. This is a dilemma every single human being goes through on a daily basis. Weather we do what we know is right, live by rules, act peacefully, follow moral commands and proceed with the values we were grown up to respect or give in to our savage/ animal side, the instinct to gratify one’s immediate desires, enforce one’s will, and act violently to obtain supremacy over others....   [tags: rules, morals, symbols]
:: 1 Works Cited
916 words
(2.6 pages)
Better Essays [preview]
Nissan VSS-From-Instrument Cluster Investigation - ROSTRA PRECISION CONTROLS Nissan VSS-from-instrument cluster investigation Executive Summary: On the Nissan Frontier/Titan applications, VSS is obtainable from a single wire in the instrument cluster and the Controller Area Network (CAN). The instrument cluster VSS wire is not always pre-installed because, in this case, it is not part of a safety critical system; it only used for accessories. Inside the instrument cluster, the VSS generating circuit is configured to be a “open collector/drain”....   [tags: Automobile Investigation] 1883 words
(5.4 pages)
Powerful Essays [preview]
Bus Rapid Transit: A Sustainable Approach to Mass Transit - Bus Rapid Transit: A Sustainable Approach to Mass Transit Transportation accounts for about 25% of fossil fuel consumption. One way to decrease the negative environmental effects of burning fossil fuels (e.g. smog and global warming) is to improve mass transit. An efficient mass transit system speeds travel time, cuts travel costs, and makes service more reliable. Consequently, it discourages the use of private vehicles, reducing fossil fuel consumption and emissions. A type of mass transit that has proven to be environmentally and socially successful in many cities across the world is Bus Rapid Transit....   [tags: Mass Transit Bus Public Transportation Essays]
:: 6 Works Cited
2381 words
(6.8 pages)
Powerful Essays [preview]
ATRAC: Adaptive Transform Acoustic Coding for MiniDisc - ATRAC: Adaptive Transform Acoustic Coding for MiniDisc Abstract -------- ATRAC is an audio coding system based on psychoacoustic principles. The input signal is divided into three subbands which are then transformed into the frequency domain using a variable block length. Transform coefficients are grouped into nonuniform bands to reflect the human auditory system, and then quantized on the basis of dynamic sensitivity and masking characteristics. ATRAC compresses compact disc audio to approximately 1/5 of the original data rate with virtually no loss in sound quality....   [tags: Papers] 1980 words
(5.7 pages)
FREE Essays [view]
Computers Modulator Demodulators (Modems) are used to change the analogue - Computers Modulator Demodulators (Modems) are used to change the analogue to digital and the other way around Analogue to Digital Conversion Matt Davey Analogue to Digital Conversion is the way of converting a continous analogue signal to a series of digital binary numbers. This is done in many pieces of hardware by taking samples of the analogue signal and then each sample is digitised into a binary code by a microchip. This process is known as Quantization a process where a continuous signal is converted to a series of points at discrete levels....   [tags: Computer Science] 368 words
(1.1 pages)
FREE Essays [view]
Differences in Telecommunication Terms - This paper will attempt to define and contrast the following terms: a. Synchronous and asynchronous b. Analog and digital c. XON and XOFF d. Simplex and duplex e. Serial and parallel transmission f. Baseband and broadband g. Serial Line Internet Protocol (SLIP) and Point-to-Point Protocol (PPP) h. Hypertext Transfer Protocol (HTTP) and File Transfer Protocol (FTP) i. Transmission Control Protocol (TCP) and Internet Protocol (IP) It will also contain a brief description and analysis of the OSI layers that are used with the TCP/IP protocol stack....   [tags: essays research papers] 2008 words
(5.7 pages)
Powerful Essays [preview]
Comparative Study of SAR from Mobile Phones With and Without Headset - Abstract— Mobile phone have become the most commonly used electronic gadget. A world without mobile phone is now almost unimaginable. The radiofrequency signals produced by mobile phones are transferred as electromagnetic radiation (EMR). EMR has the ability to penetrate through semi solid substances especially human body's tissues and caused dielectric heating. This effect can be classified as thermal and non thermal radiation. The skin near ear skull region is very thin compare to other part of human body....   [tags: Technology]
:: 7 Works Cited
1004 words
(2.9 pages)
Strong Essays [preview]
How a Television Works - How a Television Works The job of a TV set is to turn the electronic signals created by TV cameras and microphones back into pictures and sound. The TV's aerial picks up the signals from the transmitting studios and they then travel down a cable to the aerial socket at the back of the TV. When you switch on the set, the sound and picture signals are separated from each other and from the carrier waves. (The TV signal on its own isn't powerful enough to travel very far so it is mixed with the much more powerful carrier wave and can then travel much larger distances.) The sound is then sent to the TV's loudspeaker....   [tags: Papers] 455 words
(1.3 pages)
FREE Essays [view]
0.5 mm2 All-Digital SAW-less Polar Transmitter for EDGE in 65 nm CMOS - EDGE is currently the most widely used standard for data communications in mobile phones. Its proliferation, supported by its backward compatibility with GSM, has led to a need for low-cost EDGE mobile solutions. The implementation of RF circuits on the nanoscale digital CMOS process with no or minimal process enhancements is one of the key obstacles limiting the complete single-chip integration of cellular radio functionality with digital baseband for mass production. The key challenges for the RF integration in nanoscale CMOS include non-linearity of devices and circuits, device mismatches, process parameter spread, and the increasing potential for self-interference that could be induced b...   [tags: Research Analysis ]
:: 4 Works Cited
1447 words
(4.1 pages)
Powerful Essays [preview]
Comparing The Red Room by H.G. Wells and The Signalman by Charles Dickens - Comparing The Red Room by H.G. Wells and The Signalman by Charles Dickens The aim of this essay is to explore the way in which the two authors respectively create a feeling of suspense and tension in their works. I will be discussing The Red Room, by HG Wells, and The Signalman, By Charles Dickens. The convincing portrayal of suspense and the effective build up of fear, drama and anticipation are the central features or aspects of any piece of work from this genre. I will focus on how the presentation of language, setting, atmosphere achieves this....   [tags: Free Essays] 393 words
(1.1 pages)
FREE Essays [view]
An Inverter Testing System For Computer Room Air Conditioning - bstract—This paper aimed at functional requirements with CRAC (computer room air conditioning) inverter test system, and realized the test system hardware platform design, while completing the software functional design and programming algorithm. For example in Self-Made 10Kw inverter and Schneider ATV31H 2.2Kw inverter, we research on its output three-phase voltage, three-phase current for balance analysis and harmonic calculations. Practical application shows that the system can achieve efficient automated test process, and the measurement results with manual measurement are the same....   [tags: communication technology, voltage]
:: 11 Works Cited
1832 words
(5.2 pages)
Term Papers [preview]
"Contact": a Critical Review of Bias - In 1997, Carl Sagan’s science fiction novel Contact was finally adapted to film by director Robert Zemeckis. Although originally written as a film in 1980 by Sagan and his wife Ann Druyen, production proved to be troublesome leading Sagan to publish Contact as a novel in 1985. The film portrays humanity’s first contact with extraterrestrials, but unlike most alien encounter stories that concentrate on the direct conflict of humans meeting aliens, Contact focuses on humanity’s cultural struggles when it encounters uncertain extraterrestrial events....   [tags: Carl Sagan, Contact, movies, ] 2531 words
(7.2 pages)
Powerful Essays [preview]
Voice Over Internet Protocol Attacks - Definition: VoIP or Voice over Internet Protocol, is a type of transmissions medium that is responsible for the delivery of real-time voice and data communication. Unlike its analog predecessor in which the transport functionality was routed via the public switched telephone network (PSTN), calls are now converted from an analog signal to a digital format, which is what the Internet Protocol (IP) uses for transmission and delivery, making VoIP possible. Several other key processes, such as signaling, authentication, security, call control, and voice compression, are established by VoIP prior to and during the call setup phase....   [tags: Information Technology ]
:: 5 Works Cited
1060 words
(3 pages)
Strong Essays [preview]
Multimedia Components and The Classroom - Multimedia Components In this globalization age, multimedia has become a widely used tool in education, business, entertainment and more. In simple words, multimedia can be known as the compound of diverse media elements. Multimedia is a powerful instrument consists of combination of various types of media which involve human-computer interaction process (Gunasekaran and Love, 1999). In general, multimedia components can be classified into five major classes: text, audio, video, graphics and animation (refer to Figure 1 in Appendix 1)....   [tags: animation, human-computer interaction]
:: 14 Works Cited
1229 words
(3.5 pages)
Strong Essays [preview]
Network Topologies Analysis and Comparison - Network Topologies Analysis and Comparison The bus topology connects several computers, or nodes, with a communication channel, often a single cable. Computers on a bus either transmit data to other computers on the network or listen for data from other computers on the network. They are not responsible for moving data from one computer to the next. Consequently, if one computer fails, it does not affect the rest of the network. Because the data, or electronic signal, is sent to the entire network, it travels from one end of the cable to the other....   [tags: Network Topology] 1022 words
(2.9 pages)
Strong Essays [preview]
Attenuation Effects on Data Transmitted through Cable - Attenuation Effects on Data Transmitted through Cable Abstract Attenuation refers to any reduction in the strength of a signal. Attenuation occurs with digital or analog signals. Attenuation is the end result of signals being transmitted extended distances. Attenuation is usually expressed in units called decibels (dBs). The cable type will determine at what point along the length of the cable signal degradation occurs. Repeaters can be inserted along the length of the cable to boost the signal strength which increases the maximum attainable range of data transmitted though the cable....   [tags: essays research papers] 551 words
(1.6 pages)
FREE Essays [view]
Analog-to-Digital Conversion of Audio - I. INTRODUCTION (HEADING 1) Digital signals have transformed the world today, and in few areas is it as prevalent as it is in the music industry. Today’s analog-to-digital converters allow us to accurately store the physical, analog phenomena of sound as digital data, with high fidelity and perfect reproduction quality [1]. Digital audio storage is far more practical than analog audio storage for both the consumer and the professional alike. Digital audio is not vulnerable to noise, unlike analog audio where noise is not only prevalent but machine-indistinguishable from the original message [NEED CITE]....   [tags: music, sound, digital data, technology, storing]
:: 20 Works Cited
2914 words
(8.3 pages)
Research Papers [preview]
The Costly Signaling Theory - Costly signaling theory indicates that specific traits known as “handicaps” have evolved to communicate valuable information of an individual’s attributes with others. The costlier traits are able to signal more reliable information to others (Grafen, 1990). A costly signal could be any types of actions that could be costly to the senders such as taking physical risks, altruistic acts and heavy financial investment. In the ancestral societies, men were mainly responsible for group defending, and male combatants had more prestige and accesses to sexual partners (Chagnon, 1988)....   [tags: modern men, risky behavior, females]
:: 33 Works Cited
1149 words
(3.3 pages)
Better Essays [preview]
The Symbolic Meaning Depicted in William Golding's Lord of the Flies - The novel Lord of the Flies by William Golding tells the story of English schoolboys who become stranded on an island after a plane crash, and their slow descent from civilization to savagery. The story is an allegory; the characters as well as several objects all carry a symbolic meaning to them. Democracy and the laws of civilization are represented through a conch shell. The signal fire represents the boys’ connection to civilization and their desire to return to it. The “Lord of the Flies”, a severed sow’s head, symbolizes the inherent darkness of man....   [tags: Lord of the Flies] 780 words
(2.2 pages)
Better Essays [preview]


Your search returned over 400 essays for "signal"
1  2  3  4  5    Next >>