A High Demand For Underwater Communication Systems Essay

A High Demand For Underwater Communication Systems Essay

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Abstract—There is a high demand for underwater communication systems due to the increase in current human underwater activities. Bathymetric data is a depth value of reservoir or inland water bodied. Bathymetric data is useful for hydrographical survey, volume calculation and 3D graph generation using interpolation techniques. Depth sensor captures a depth data values from the water source and these values can be used for plotting interpolation plot and volumetric analysis. Bathymetric data taken from SONAR is not accurate because multipath noise gets added and there is need to remove multipath noise. In order to overcome errors in SONAR the proposed system has used various filters and interpolation techniques in order to minimize multipath errors for accurate volume calculation. The proposed work is introduced with a prototype using hardware assembly. Graphical user interface perform a action through various buttons programmed through software simulation assembly.

Index Terms— Cortex-M3 microcontrollerLPC1768, HRXL-MaxSonar WRS Series MB7334.

I. INTRODUCTION
When waves travel into areas of shallow water, they begin to be affected by the ocean bottom. The free-orbital motion of the water is disrupted, and water particles in orbital motion no longer return to their original position. As the water becomes shallower, the swell becomes higher and steeper, ultimately assuming the familiar sharp-crested wave shape. After the wave breaks, it becomes a wave of translation and erosion of the ocean bottom intensifies.
Most ports and harbours have dredged channels, berths and anchorages, which suffer from siltation, thereby reducing the depth of water available for navigation. In general the layers thicknesses that will be removed during ...


... middle of paper ...


...obtained data. Noise removal techniques are used to get noise free data and interpolation is done. And at final stage 3D plot is generated by using MATLAB.





Table II. Bathymetric Data
X Y Z
689505.8 1254012 -4.03
689506.6 1254013 -4.46
689506.9 1254014 -4.23
689507.6 1254015 -4.55
689508 1254015 -4.51
689508.4 1254016 -4.5









Figure 5, shows 3D plot of bathymetric data which is plotted using MATLAB software.


Fig.5. 3D Plot

CONCLUSION

Multi beam Echo sounder and active sonar are used for underwater communication for getting bathymetric data in XYZ co-ordinate form. Statistical analysis is done to recognize noise in presented data. For image reconstruction interpolation techniques are used and 3D plot is plotted using MATLAB. Then volume of lack or reservoir is calculated and results we can compare with SURFER 8 software which is approximately same.

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