FIR 底通和带通滤波器和IIR 底通和带通滤波器，主要为数据分析和统计，直线阵采用切比学夫加权控制主旁瓣比。- Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, Mainly for data analysis and statistics, Linear array using cut than learning laid upon the right control of the m