基于EDA技术的QPSK的实现调制解调程序 如有错误，请众高手指出，且请教如何将两模块连接起来。 -based EDA technology to achieve the QPSK modulation and demodulation process if wrong, many experts pointed out that but ask how to connect the two modules.

采用MATLAB实现16QAM的调制与解调，并画出星座图。-Using MATLAB 16QAM modulation and demodulation, and draw the constellation.