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).

产生多种模拟及数字信号，针对多种调制信号进行有效地调制识别-modulation classificationforsignals such as：PSK,MPSK,FSK，MFSK，FM,AM,PM，SSB,DSB,AM

调制识别识别率的曲线绘制，可以对MPSK、MFSK、MASK、AM、DSB、USB、LSB、FM进行调制识别-Modulation recognition rate curve, the modulation includes MPSK, MFSK, MASK, AM, DSB, USB, LSB, FM

利用MATLAB gui 编的短波通信系统，录制一段语音信号，分别通过AM SSB DSB 等调制信号，加入噪声，然后解调出来，可比较各种调制解调方式的优劣。-Use MATLAB gui compiled shortwave communication system, record a voice signal, respectively, by AM SSB DSB modulated signal, etc., added noise, then demodulated, you can