In this article, the processing method of noise in digital signal processing is discussed, and the influence of several factors of wavelet analysis is expounded. In view of engineering application, this article proposes a simple and practical solution.%本文探讨了数字信号处理中，噪声的处理方法。阐述了小波分析法的几种因素的影响，针对工程应用，提出了一个简单实用的解决方法。
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