小波降噪方法在地震信号处理中的应用

Application of Wavelet Transfer in Seismic Signal Denoise

摘要:

采用小波多分辨率分解降噪方法对理论信号和兰州台地震观测信号进行了处理,结果表明小波多分辨率分解降噪方法较好地保持了原信号的特性。信噪比提高了11.6~55.6 dB,平均29dB,降噪效果良好,可应用于台站日常的震相分析识别及其它研究目的降噪处理。

Abstract:

In this paper, the method of wavelet multiresolution analysis denoise is applicatied in seimic signals recorded in Lanzhou Station. The results show that signal noise ratio of seimic data increase 11.6 -55.6 dB, average 29 dB, and the original signal property is kept well. It is effective and reliable that applicats it in seismic signal denoise.：