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Development of method in precise multibeam acoustic bathymetry
Authors:Email author" target="_blank">Zhao?JianhuEmail author  Liu?Jingnan
Institution:ZHAO Jianhu LIU Jingnan
Abstract:The sound ray tracing method can achieve higher accuracy in determining depths and plan positions with multibeam echo sounding system. In data processing, actual sound speed profile must be used in the method. However, the method is too complicated. In order to overcome the shortcoming, this paper presents a new method, the position correction method. Two situations are considered in the new method, namely, change of sound velocity keeps constant gradient in whole water column (including N layers) or in different water layer.
Keywords:multibeam echo sounder(MES)  position correction method  relative depth error  area difference
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