精选优质文档-倾情为你奉上Digital Communication Project2PSK and 4PSK Requirements:Please use Matlab programming to implement some digital baseband communication systems and plot the BER(bit error probability) versus (from -5dB to 20dB) curves for 2PSK and 4PSK 目录:一、 基本理论1. 二进制移相键控(2PSK)的基本原理2PSK信号的产生方法通常有两种:模拟调制法和键控法。一般的模拟幅度调制的方法,用乘法器实现;数字键控法的开关电路受s(t)控制。2PSK信号基本的