# The Measure Test Is A Function Of N And. Essay

Length: 771 words (2.2 double-spaced pages)

Rating: Better Essays

#### Essay Preview

The thresholds in (3), is independent of the signal charactersitics
and it is a function of N and .
In this paper, a Gaussianity measure test is formulated
based on the use of HOS (kurtosis estimator) to determine
which IMFs follow a Gaussian distribution, and any IMF
fails in Gaussianity test will be the candidate reference IMF
(IMFR). The EMD modes (IMFs) are shown to follow a
Gaussian distribution when the processed signal is following
a Gaussian distribution, therefore the the Gaussianity measure
test is valid for this work [14]. As a dyadic filter, EMD sifts
the higher frequencies (noise frequencies) of the processed
signal in the first IMFs and the lower frequencies (useful
signal frequencies) in the last IMFs. Consequently, for a
noisy signal, the first IMFs will be occupied by noise (follow
Gaussian distribution) and hence their kurtosis coefficients will
be very small (theoretically equals zero). However, the kurtosis
coefficients (see eq. (2)), reflect the statistical filtering behavior
of EMD, as these coefficients are flipping from negative to
zero then to positive values through the sifting process. The
threshold in (3) is given to provide a confidence interval for
the obtained IMF kurtosis coefficients whereas any coefficient
that fails to exceed the threshold is assumed to follow Gaussian
distribution within %.
Fig. 2, illustrates the proposed method, whereas the reconstructed
signal (filtered signal) is given as,
y(n) =
XM
i=R
IMFi(n) + R(n) (4)
4. SIMULATIONS AND RESULTS
In order to demonstrate the performance of the proposed
filter and to compare it to other techniques, we used a synthetic
Electrocardiography (ECG) low pass waveform corrupted with
white Gaussian noise (wGn) is used. In the analysis, Monte-
Carl...

... middle of paper ...

...s due to the fact that
the input is a low-pass signal and the EMD behaves almost
like a dyadic filter that dissects the spectrum. Lower values of
0.9 and 0.95 will increase the probability of statistical anomaly
(increase probability of outliers) especially for low input SNR
levels (< -10 dB). These anomalies would then cause the S-C
method to improperly select the reference IMF, thus noise is
unnecessarily added to the reconstructed output.
To illustrate the mechanics of the proposed method, the
higher order statistic estimator coefficients are calculated for a
set of IMFs produced for an ECG signal at SNR= -8 dB. The
thresholds and estimator coefficients are shown in Fig. 5 and
tabulated in Table I (kurtosis at top and skewness at bottom). In
Fig. 5a each estimator coefficient changes its sign several times
during the decomposition process. The first IMF index where

## Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

## Essay about The Function Of Implicit Theories Of Intelligence

- Theory of Intelligence Summary Two studies surveyed the function of implicit theories of intelligence in adolescent’s achievement in mathematics. In Study 1, Blackwell and colleagues followed four waves of junior high students, beginning in 7th grade, over a five-year period. The 373 students that participated in this study were moderately high achieving, nationally ranking in the 75th percentile in mathematics. The student took a Theory of Intelligence questionnaire. Study 2 was very similar to Study 1, but there were a few major differences....   [tags: Self-efficacy, Motivation, Educational psychology]

Better Essays
1255 words (3.6 pages)

## The Function Of The Urinary System Essay

- The Urinary System plays an important role in our everyday life. It’s most important functions are maintenance of homeostasis, manufacture hormones that we need, and to process our wastes for elimination. Our kidneys are part of this whole system; bad habits and lifestyle affect the whole cycle. This system has a long list of disorders and diseases that an individual may acquire; one of these is Acute Renal Failure (ARF). Its fast development impairs the kidneys- unless the problems detected immediately and treated....   [tags: Kidney, Nephrology, Renal failure, Dialysis]

Better Essays
1824 words (5.2 pages)

## Essay on Assessing The Nervous System Function

- Introduction Neurological procedures can lead to significant postoperative deficits. It is important for physicians to assess nervous system function intraoperatively so that any deficits can be corrected before they become permanent. The oldest method of assessing spinal cord function is with the Stagnara wake up test where patients are awoken in the middle of surgery in order to assess motor function(1). Once the neurological status of the patient is evaluated, the patient would be reanesthetized and the surgery would resume....   [tags: Nervous system, Central nervous system]

Better Essays
1145 words (3.3 pages)

## Personality, Iq, And Executive Function Essay

- The next set of past research studies do not necessarily relate to the topic of BPD in adolescents who are victims of childhood neglect and trauma, violence, and African-Americans. However, these studies focus on the influence of personality on behavior in regards to how it can affect how a person thinks and behaves. It is important to address personality in BPD because it can reveal something about person’s behavior. As stated before, BPD can cause erratic, emotional, and dramatic behavior. Moreover, these BPD personality characteristics could potentially be revealed throughout everyday life through regular personality assessments....   [tags: Big Five personality traits]

Better Essays
2057 words (5.9 pages)

## Level 2 Of Function Decomposition Essay

- • Level 2 of function decomposition illustrates the detailed component level of the design. For this level of the design as shown below at the beginning (120v/12v) step-down transform connected to the wall outlet to convert 120V AC source to 12V DC output. The 12V DC connected to two regulators, the first regulator convert the 12V DC to 9V DC and the Second regulator Covert 12V DC to 5V DC. The 9V DC source provides input power to the Tester module through switch 1, meanwhile the 5V Dc source provides input power to the Digital Multimeter (DMM) through switch 2....   [tags: Project management, Gantt chart, Henry Gantt]

Better Essays
965 words (2.8 pages)

## Treatment for Low Albumin Function Essay

- Ablumin is common protein found in human being used for serum-binding protein. It has molecular weight of 69,000 and was made inside the liver. [1]Albumin is very important to measure health and find any disease if present. Because albumin is factor to transport drugs, lipids, and hormones. Drug bind to albumin and albumin can help to transport to liver to become less toxic to body and water soluble to be absorbed. This also help to balance the amount of blood in the arteries and veins.[2] It contributes colloid oncoptc pressure (COP) which bind to endogenous and exogenous moelcules, and it mediates coagulation and help to maintain normal microvascular permeability....   [tags: hypoalbuminemia, pharmacology, electrolyte]

Better Essays
2836 words (8.1 pages)

## Essay on Implicit Association Test ( Iat )

- Implicit Association Test (IAT) The method primarily used throughout research was the Implicit Association Test (IAT). This test is a measure used in the study of social psychology that is used to predict a person’s first association between different mental representations in one’s memory. In these particular studies the IAT is used to detect one’s behaviors, judgements, and decisions suggestive of ethnic and racial discrimination (Oswald, Mitchell, Blanton, Jaccard, & Tetlock, 2007). This test is usually done through technology....   [tags: Stereotype, Discrimination, Psychology]

Better Essays
1031 words (2.9 pages)

## Essay about Neurocom Sensory Organization Test

- The concussion rates among high school, collegiate, and professional athletes is increasing at an alarming rate. The United States alone reports 1.6 to 3.8 million cases of sport-related concussions per year2-4, 9, 12. The 1.6 to 3.8 million does not account for the large number of concussions that remain unreported by athletes2-4, 9, 12. According to McCrory et al., a concussion is defined as a complex pathophysiological process that disturbs the brain, which is prompted by traumatic biomechanical forces 10....   [tags: Medical Research]

Better Essays
2637 words (7.5 pages)

## Effects Of Marijuana On The Cognitive Function Of The Adolescent Essay

- The number of adolescent who have tried cannabis is increase and now that a few states have made this drug legal for recreation use, this drug is becoming easier to purchase. Cannabis use is not only putting the teenager’s education at risk, but there is also the threat that cannabis can lead to more severe drugs. Cannabis already has the stigma of being a gateway drug. There are experts out there that consider cannabis a very dangerous drug that leads to more illicit drugs such as heroin (Peretti-Watel, 2006, p.1034)....   [tags: Cognition, Psychology, Educational psychology]

Better Essays
711 words (2 pages)

## Organizing Function Of Management Essay

- Abstract The word "Chiropractic" is derived from the Greek word chiropraktikos, meaning "effective treatment by hand". Chiropractic is a branch of the healing arts. It is also a drugless and non-surgical mode of care. As Thomas Edison once said, "The doctor of the future will give no medicine, but will interest his patients in the care of the human frame, in diet, and in the cause and prevention of disease". Over the years chiropractors began more and more focusing on the spine. It is now based upon the belief that good health depends on the functioning of the nervous system....   [tags: Business Management ]

Free Essays
1642 words (4.7 pages)