Bartlett window filters

–针对矩形、bartlett、hanning、hamming、blackman窗 M=40 –求： ①分别画出单位脉冲响应w[n] ②分别画出幅度响应20log10|W(e^jω)| ③分别给出第一旁瓣衰减和主瓣带宽，并与理论值比较-- For a rectangle, bartlett, hanning, hamming, blackman window M = 40- seeking: ① Draw the unit impulse response w [n] ②

bartlett blackman and rectengular filter window codea