Confrontation and analysis of three typical submarine sound signal detect performance
Choosing submarine sound signal is an important step of research at sound propagation loss,to do more at confrontation and analysis of different submarine sound signal detect performance,this article does confrontation and analysis of different submarine sound signal detect performance.This work helps to manufacture and use submarine sound prospecting apparatus.By phantom study and data analysis,this article focuses on detect performance of CW,frequency sweep and pseudo-random coding.During this work,phantom study used Bellhop procedural of ray theory model to count broadband frequency domain sound signal,by fourier transform to be time domain sound signal.Matched filtering,band-pass filtering and short time fourier transform were used to do confrontation and analysis of submarine sound signal detect performance.After this work,we find that frequency sweep and pseudo-random coding had lesser width and side lobe,big margin of signal mountain range,and they could be found multipath conformation.This study help calculation reflected coefficient.
submarine sound signal detectionsubmarine sound signal typematched filteringband-pass filteringshort time fourier transform
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