qfunct.m

来自「matlab通信仿真」· M 代码 · 共 7 行

function [y]=Qfunct(x)

% [y]=Qfunct(x) Q函数的计算
% y=1/sqrt(2*pi)*integral from x to inf of exp(-t^2/2) dt
% y=(1/2)*erfc(x/sqrt(2))

y=(1/2)*erfc(x/sqrt(2));