应用匹配滤波法估测水下介质声阻抗的初步研究

A preliminary study of applying a matched-filter approach to estimate sound impedances of underwater sediments

对一种新的反演方法──匹配滤波法应用于水下地声探测中的声阻抗定量估测问题作了研究，论述了这种方法的原理和算法，并且给出了对其进行改进的方法。模拟声呐记录的试算结果表明，匹配滤波法是一种原理简单，计算量小，容噪性好的水下介质声阻抗反演方法．

A new inverse method, matched-filter approach, has been applied to estimate the sound impedance of underwater sediments. The theory and algorithm of this approach are discussed in the paper, and an improved method is presented so that the attenuation effect can be considered in this approach. Through the inverse results of simulated soars signals, it has been shown that the matched-filter approach is a simple and effective inverse method, which way be a useful tool to derive the impedance model of underwater sediments.