由于水声信道的多途效应造成水声通讯质量大大下降，误码率很高。
In underwater communications, multi-path effect leads to the reduction of communication quality and the high error code rate.
本文给出的逆波束形成（IBF）方法具有抗多途效应效果好、算法简单、易于工程实现等优点。
The inverse beamforming (IBF)algorithm is simple and easy to be used in the practical engineering.
利用矢量水听器接收确知脉冲信号来确定声源方位时，脉冲信号形式可以考虑采用M序列调相信号，具有良好的抗多途效应。
M sequence signal can be chosen as the receiving deterministic pulse signal when using acoustic vector to determine the direction of the sound source. It possesses favorable anti-multipath capability.
利用矢量水听器接收确知脉冲信号来确定声源方位时，脉冲信号形式可以考虑采用M序列调相信号，具有良好的抗多途效应。
M sequence signal can be chosen as the receiving deterministic pulse signal when using acoustic vector to determine the direction of the sound source. It possesses favorable anti-multipath capability.
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