Application of Mellin Transform in Wideband Underwater Acoustic Signal Processing  

作　　者：王军 李亚安 

机构地区：[1]College of Marine,Northwestern Polytechnical University [2]Hangzhou Applied Acoustics Research Institute,Hangzhou 310012,China

出　　处：《Defence Technology（防务技术）》2007年第4期297-301,共5页Defence Technology

基　　金：Sponsored by National Nature Science Foundation of China(10474079)

摘　　要：According to the features of the wideband underwater acoustic signals,an algorithm for the wideband ambiguity function is put forward based on Mellin transform.The wideband acoustic signal processing using the fast Mellin transform is also explored.The theoretical analysis and simulation results show that the algorithm has not only high computation efficiency but also good concentration in wideband ambiguity domain.It suits for the wideband underwater acoustic signal processing.According to the features of the wideband underwater acoustic signals, an algorithm for the wideband ambiguity function is put forward based on Mellin transform. The wideband acoustic signal processing using the fast Mellin transform is also explored. The theoretical analysis and simulation results show that the algorithm has not only high computation efficiency but also good concentration in wideband ambiguity domain. It suits for the wideband underwater acoustic signal processing.

关 键 词：声学 多频率信号 多频率模糊函数 Mellin转换 信号处理 地下水声 

分 类 号：TN911.7[电子电信—通信与信息系统]