利用矩形窗设计的数字滤波器，利用三角窗设计的数字滤波器，利用海明设计的数字滤波器，利用汉宁窗设计的数字滤波器，利用巴特里特窗设计的数字滤波器，利用布拉克曼窗设计的数字滤波器，利用切比雪夫窗设计的数字滤波器，利用凯塞窗设计的数字滤波器-Using rectangular window of the digital filter design, using the triangular window of the digital filter design using the design of digital filters Hamming, Hanning window using the digital filter design, using Bartlett window of the digital filter design, the use of cloth Lachman window design digital filter using Chebyshev window design digital filter using Kaiser window design of digital filters