用来进行双边带幅度调制DSB_AM的MATLAB源程序。-Demonstration scr ipt for DSB-AM. The message signal is+1 for 0 < t < t0/3,-2 for t0/3 < t < 2t0/3, and zero otherwise.actually means Rx(m-1).

振幅调制的程序，主要应用平台是matlab，文件格式为m文件-Amplitude modulation (am) program, the main application is the matlab platform, file format for m file