本程序是用MATLAB编写的用于仿真通信系统中信号经过QPSK和16QAM调制后，通过高斯白噪声和瑞利衰落信道的星座图仿真-This program written by MATLAB is for the students who are studying telecommunication.It s very useful to simulate the signal constellation.

matlab中QPSK的simulink仿真，包括星座图以及频谱分析-The simulink matlab in QPSK simulation, including constellation and spectrum analysis