angle01.m

基于simulink的现代通信系统仿真。很好的仿真源码！

function [sys,x0,str,ts]=angle01(t,x,u,flag)
switch flag,
case 0,
    [sys,x0,str,ts]=mdlInitializeSizes;
case 3,
    sys=mdlOutputs(t,x,u);
case{1,2,4,9}
    sys=[];
otherwise
    error(['Unhandled flag =',num2str(flag)]);
end
function [sys,x0,str,ts]=mdlInitializeSizes
sizes=simsizes;
sizes.NumContStates=0;
sizes.NumDiscStates=0;
sizes.NumOutputs=1;
sizes.NumInputs=2;
sizes.DirFeedthrough=1;
sizes.NumSampleTimes=1;
sys=simsizes(sizes);
x0=[];
str=[];
ts=[0,0];
function sys=mdlOutputs(t,x,u)
if u(1)==1&u(2)==1
    sys=pi/4;
elseif u(1)==-1&u(2)==1
    sys=3*pi/4;
elseif u(1)==-1&u(2)==-1
    sys=5*pi/4;
else
    sys=7*pi/4;
end