%QPSK格雷码clc;clear all;close all;nsymbol = 50000;%每种信噪比下符号数的发送符号数data = randi(0,1,1,nsymbol*2); %产生1行，nsymbol列均匀分布的随机数0,1qpsk_mod1 = zeros(1,nsymbol);qpsk_mod2 = zeros(1,nsymbol);data_receive1 = zeros(1,nsymbol);data_receive2 = zeros(1,nsymbol);data_receive = zeros(1,nsymbol*2);Wrongnumber = 0;SymbolWrongnumber = 0;for i=1:nsymbol %调制 symbol1 = data(2*i-1); symbol2 = data(2*i); if symbol1 = 0 & symbol2 = 0 qpsk_mod1(i) = 1
