湖底宽带回波信号的解卷积处理  

Deconvolution Applied to Wideband Acoustic Echo Signals of Lake Bottoms

作　　者：王正垠[1] 马远良[2] D.Vray G.Gimenez 

机构地区：[1]西安石油学院 [2]西北工业大学 [3]URACNRS1216,INSA,69621VillebranneCedex,Franscee

出　　处：《信号处理》1997年第4期335-340,共6页Journal of Signal Processing

摘　　要：本文利用维纳滤波解卷积处理方法实现对宽带调频主动声纳回波信号的解卷积处理，通过解卷积处理，可获取目标的冲激响应．文中还给出了利用谱平均技术获取最小相位信号的冲激响应的计算方法．通过对不同的五类湖底介质宽带回波信号的解卷积处理，发现不同类底质的冲激响应具有显著的识别特征．The paper presents a simple deconvolution procedure for echo signals from lake bottoms providedby a wideband (20KHz- 140KHz) active sonar. Experimental impulse response of lake bottom can be obtaincd byusing the deconvolution procedure. A minimum phase impulse response is obtained by spectral averaging via aWiener-Doob homomorphic transformation. After deconvolution for five classes of different lake lottoms, it isdiszcovered that impulse responses of different lake bottoms have obvious recongnizsable characterristivs

关 键 词：湖底 水声数据 回波信号 解卷积处理 信号处理 

分 类 号：TB566[交通运输工程—水声工程]