This appendix gives the waveforms and FFTs of spectral content of the he file alien_voices.c. The frequency response curves were produced using the MATLAB Filter Design Toolbox

MATLAB濾波器設計 運用matlab函式將類比綠波器轉成數位濾波器 善用了ellip 及 bilinear 還有 tf2sos 函式 因為有展成sos形式,式和實際上濾波器的設計應用,並附上對講機應用之ctcss濾波器處理程式-MATLAB Filter Design use matlab function analog green wave is converted to a digital filter to make good use of the the ellip an

结合GA算法实现的双二阶级联滤波器的逆滤波设计，在MATLAB平台实现了简单仿真。(The inverse filter design of double two class combined filter based on GA algorithm is designed, and the simple simulation is realized on the MATLAB platform.)