基于小波分析的海上声信号去噪试验研究

Experimental Study on Denoising of Marine Acoustic Signals Based on Wavelet Analysis

对于海上声信号的分析中,为消除海上复杂环境中对声信号有用成分干扰的噪声,提出基于小波变换的声信号去噪法。利用matlab软件对给定的声信号进行传统滤波去噪与小波变换去噪两种形式的试验去噪,并将结果进行多方面对比。经过试验结果对比,验证了小波变换在海上声信号去噪中的有效性。

In the analysis of maritime acoustic signal, in order to eliminate the interference in useful composition of acoustic signal from the noise of complex marine environment, this paper presents an acoustic signal denoising method based on wavelet transform. Using Matlab software to denoise the given acoustic signal by two forms of experiment, which are traditional filtering denoising method and wavelet transform denoising method, then compared the results in many aspects. After the comparison of two experiment results, verified the effectiveness of wavelet transform in maritime acoustic signal denoising.