资源简介
利用MATLAB绘制接收机处理曲线(ROC),其中标明了检测概率和虚警概率的关系,可以用于给定信噪比下接收机的设计。

代码片段和文件信息
% % 4.8
close all;clear all;
pfa=0:0.001:1; %虚警概率
z=norminv(1-pfa01);
for d=5.5%d=1:0.5:2
%10
pd=1-normcdf(z-d01); % 正态分布的累加值
hold on
plot(pfapd);
title(‘d 取不同值时的ROC曲线‘);
end
grid on; xlabel(‘pfa‘); ylabel(‘pd‘);
pfa=0.01;
z=norminv(1-pfa01);
d=z-norminv(1-pd01);
% figure(2)
% d=1:0.005:10;
% for pfa=0.0001:0.001:0.01
% z=norminv(1-pfa01);
% pd=1-normcdf(z-d01);
% plot(dpd)
% hold on
% end
% grid on;xlabel(‘d‘);ylabel(‘pd‘);
% figure(3)
% pd=0.5;
% eta=0.001:0.001:5;
% for ii=1:length(eta)
% c = [0.5 norminv(1-pd01) -eta(ii)];
% r = roots(c);
% d = r(find(r>0==1));
% pfa(ii) = 1-normcdf((eta(ii)+0.5*d^2)/d01);
% end
% plot(etapfa‘r‘)
% grid on; xlabel(‘\eta‘); ylabel(‘pfa‘)
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
文件 818 2012-09-26 17:28 ROC\gen_tjwave.m
目录 0 2012-11-27 09:34 ROC\
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