利用matlab对am，dsb，ssb，ask，fsk，bpsk信号进行正交调制解调仿真，并在不同信噪比条件下对其数字信号进行了误码率的计算。-Using matlab to am, dsb, ssb, ask, fsk, bpsk orthogonal signal modulation and demodulation simulation, and signal to noise ratio in different conditions of its digital signal to

给出了通信原理课程的相关实验程序源码，包括dsb、ask，抽样及其滤波、信噪比分析及眼图。-Communication Theory courses give the experimental procedures related to the source, including dsb, ask, sampling and filtering, signal to noise ratio analysis and eye diagram.

信号处理相关函数及作图（时域图和频域图） 包括AM、dsb、SSB、ask、Mask、QPSK等-signal functions including AM、dsb、SSB、ask、Mask、QPSK