基于多波束数据的声速误差自动改正方法

The Automatic Correction for Sound Speed Error Based on Multibeam Sounding Data

讨论了声速误差对多波束测深值的影响,在此基础上,建立了自动搜索等效声速剖面的改正方法。该方法利用多波束实测数据搜索等效声速剖面,取代实测声速剖面,可削弱声速误差的影响。实例计算表明,利用多波束实测数据建立的声速剖面自动改正方法,能够有效地消除声速误差的影响,并且在处理过程中不需要人工干预,较大地提高了改正效率。

The effect of sound speed error upon multibeam sounding data was discussed.Based on the result,an automatic correcting method had been proposed,which firstly searched the equivalent sound velocity profile（SVP） through multibeam sounding data,then utilized it to correct sound speed error instead of the real SVP.An example was given to prove that the automatic correcting method was effective and efficient.