针对水声信道的多径扩展特性和稀疏性,和海洋介质的多重散射和不均匀性,同态滤波技术可以在变换域将卷积转化为加法的操作进行处理,非常适合水声信道.主要对水声信号在倒谱域进行处理,通过信道冲激响应作为衡量的标准,给出了有益的结论,为更进一步的研究奠定了基础. In view of multipath propagation characteristics and sparsity of underwater acoustic channels and multiple scattering and inhomogeneities of marine media, homomorphic filtering technique can be applied to convert convolves into additions in transform domain, which is very suitable for underwater acoustic channels. Acoustic signal processing in the cepstrum domain, through the channel impulse response as a measure of the standard, gives useful conclusions, and laid the foundation for further research.