实现matlab下2ASK通过高斯白信道采用相干解调 的符号信噪比/误符号率/误比特率计算 。以及调制后波形的显示，包括2FSK仿真误码率','2FSK理论误码率图形。(Calculation of symbol signal-to-noise ratio / symbol error rate / bit error rate of 2ASK through coherent demodulation in white channel under matlab. And modulation waveform display, including 2FSK simulation error rate ','2FSK theory bit error rate graphics.)