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基于谐波小波函数较别的小波函数具有良好的盒形谱特性考虑，将谐波小波函数用于数字信号滤波，并通过模拟算例和实例给予验证。同时定义了一滤波功效因子，并分析了不同参数对谐波小波滤波功效的影响。
Considering that the wavelet function has good box-shaped spectral characteristics based on the harmonic wavelet function, the harmonic wavelet function is used for digital signal filtering, and the simulation examples and examples are given to verify the wavelet function. At the same time, a filter efficiency factor is defined, and the effect of different parameters on the efficiency of harmonic wavelet filtering is analyzed.