本例用matlab语言实现了4QPSK的编解码及通过awgn信道的仿真。采用蒙特卡罗仿真法，得到误码性能，绘制曲线。可用于算法研究或课程学习。

4psk&8psk的matlab实现，采用蒙特卡罗仿真法，计算误码率误比特率，绘制相应曲线-the realization of 4psk&8psk by Matlab tool,it use Monte Carlo way to calculate the BER and draw the graph.

4dpsk和8dpsk的matlab仿真实现，采用蒙特卡罗仿真法，绘制误码率曲线-the realization of 4dpsk&8dpsk by matlab tool.it use the Monte Carlo methods to draw the graph.