lear all;
clc;
%設(shè)置調(diào)制信號的抽樣間隔
xSampleTime = 1/100000;
%設(shè)置仿真時間長度
xSimulationTime = 10;
%設(shè)置隨機數(shù)產(chǎn)生器的初始化種子
xInitialSeed = [61 71];
%設(shè)置QPSK調(diào)制的初始相位
xPhaseOffset = pi/4;
%設(shè)置QPSK調(diào)制信號的抽樣個數(shù)
xSamplesPerSymbol = 1;
xReceiveDelay = 0;
%x表示信噪比的取值范圍
x = 0:10;
%y1表示RAM調(diào)制的誤符號率
y1 = x;
%y2表示QAM調(diào)制的誤符號率
y2 = x;
for i = 1:length(x);
    %信噪比依次取向量x的數(shù)值
    xSNR = x(i);
    %執(zhí)行RAM仿真模型
    sim('ch1005');
    %從xErrorRate中獲得調(diào)制信號的誤符號率
    y1(i) = xErrorRate(1);
end