中文摘要：

提出了根据实测声速剖面，利用经验正交函数建立了声速剖面场的数学模型，得到了任意点位的声速剖面对边缘波束数据进行声线折射改正的方法。该方法对提高多波束勘测效率和精度具有重要意义。

英文摘要：

A new method for inverting sound velocity profile field with empirical orthogonal functions is given. It is shown from the results that SVP computed by the method has high precision. The method of data processing is very important to increase the precision of the side beams.