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.

• 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。