Harmonic wavelet has a finer frequency refinement f unction than the others.An example which can demonstrate superiority of harmonic wavelet in filtering is presented.

• 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。