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Signal features and dynamic range compression of swath echo sounder

XU Xueyao,YAO Lian (Shanghai Shipbuilding Electronic Equipment Institute·200025)  
Swath echo sounder or multi beam survey sonar has been imported from abroad and is being developed recently in our country to meet the requirements of ocean exploration. This paper first introduces the basic principles of the sonar. In second section the signal features of sea bottom backscattering, received by the receiver, is analyzed, and why the signal has a large dynamic range is explained. In third section two different methods of dynamic range compression are discussed. Their hardware frame software flowchart and some results are given.
【CateGory Index】: TB566
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