使用类似切比雪夫滤波器设计的方法得到切比雪夫窗，计算简单线阵方向图-Calculate simple linear array pattern similar Chebyshev filter design cut Chebyshev window

试设计一个切比雪夫I型高通数字滤波器，采样率为8000Hz,fp=1000Hz,fs=700Hz,Rp=3dB,Rs=20dB。-Try to design a type I Chebyshev high-pass digital filter sampling rate of 8000Hz, fp = 1000Hz, fs = 700Hz, Rp = 3dB, Rs = 20dB.