Wavelet denoising is one of the important application of wavelet nanlysis in signal processing, espe-cially, threshold denoising have been widely used by its simplicity and good results. A new Threshold Denoising Function is proposed. The result of the experimental shows the new function has better effect than traditional soft and hard threshold denoising functions when select the appropriate control coefficient.%小波去噪是小波分析在信号处理领域的重要应用之一,特别是其中的小波阈值去噪方法更以其操作简单和良好的效果而被广泛应用.对常规的软、硬阈值方法进行分析,提出了一种改进的阈值去噪方法.通过实验对比表明,当选取了合适的控制系数a时,该方法比常规的软,硬阈值去噪方法去噪效果更好.
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