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本文简述了小波分析理论及基于小波变换的去噪方法 ,针对氮爆式液压破碎锤测量信号非平稳时变特点 ,对其进行小波分析处理。结果表明 ,经过小波消噪后的信号具有更好的可读性及更佳的分析利用价值
In this paper, the theory of wavelet analysis and the denoising method based on wavelet transform are briefly introduced. Aiming at the non-stationary time-varying characteristics of nitrogen exploded hydraulic breaker, the wavelet analysis is carried out. The results show that the signal after wavelet denoising has better readability and better analytical use value