摘要
本文简要分析了QAM的工作原理,并利用通信系统仿真软件SystemView,对QAM的调制解调过程进行了仿真,给出了具体的系统仿真电路图,观察并分析了QAM信号的各路波形及频谱图、星座图,对SystemView与MATLAB实现QAM仿真的不同做了比较分析。
This paper analyzes the working principle of QAM, makes a simulation on the modulation and demodulation process of QAM with SystemView software, and gives a simulation circuit diagram. The waveforms＇, spectrogram and constellation of QAM signal is observed and analyzed, and the difference ＇of SystemView and MATLAB in realizing QAM simulation is comparatively analyzed.
