This paper introduces the detecting echo methods for multi-beam sonar.It describes the disadvantage of BDI and WMT detecting methods.So Maximal Amplitude Deter-mining Echo method is presented.

• 摘要详细论述了多波束测深系统的幅度检测方法，指出了传统的BDI和WMT检测方法的缺点，提出了回波最大强度优先法。