详细给出了4psk的 调制解调程序,并给出个电波形,最后仿真4psk的误码性能,并给出了误码曲线-4psk detail given to the modulation and demodulation process and given electrical waveform, Simulation of the final four psk the BER, and gives the error curve

模拟信号采样周期，若频率符合要求，则输出波形与原波形一致-Analog signal sampling period, if the frequency to meet the requirements, the output waveform consistent with the original waveform