出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：A precise, linear indication of the depth of water in a specific part of water body is what alwaysrequired. Presently there are a wide variety of ways to produce a signal that tracks the depth ofwater.The Ultrasonic signal is most commonly used for the depth estimation. This signal isaffected by various underwater noises which results in inaccurate depth estimation. Theobjective of this paper is to provide noise reduction methods for underwater acoustic signal.Inpresent work, the signal processing is done on the data collected using TC2122 dual frequencytransducer along with the Navisound 415 echo sounder. There are two signal processingtechniques which are used: The first method is denoising algorithm based on Stationary wavelettransform (SWT)and second method is Savitzky-Golay filter. The results are evaluated based onthe criteria of peak signal to noise ratio and 3D Surfer plots of the dam reservoir whose depthestimation has to be done.
