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%S-function for continuous state equation function [sys,x0,str,ts]=s_function(t,x,u,flag) switch flag, %Initialization case 0, [sys,x0,str,ts]=mdlInitializeSizes; %Outputs case 3,

function [sys,x0,str,ts] = spacemodel(t,x,u,flag) switch flag, case 0, [sys,x0,str,ts]=mdlInitializeSizes; case 3, sys=mdlOutputs(t,x,u); case {2,4,9} sys=[]; otherwise erro

function dx=PlantModel(t,x,flag,para) global S A F c alfa beta dx=zeros(2,1); S=1; if S==1 rin=1.0; drin=0; elseif S==2 A=0.5;F=3; rin=A*sin(F*2*pi*t); drin=A*F*2*pi*cos(F*2

clear all; close all; L1=-pi/6; L2=pi/6; L=L2-L1; T=L*1/1000; x=L1:T:L2; figure(1); for i=1:1:5 gs=-[(x+pi/6-(i-1)*pi/12)/(pi/24)].^2; u=exp(gs); hold on; plot(x,u); end xla

n=1:1024; x=cos(0.1*2*pi*n); %tfrsp(x'); %tfrwv(x'); %tfrpwv(x'); tfrcw(x') %tfrspwv(x');

%微积分例1:一元函数求导（diff,gradient) clear;close; x=-2*pi:0.1:2*pi; y=sin(x); dy=diff(y)./diff(x); plot(x,y,x(1:length(x)-1),dy); hold on; yx =gradient(y,x); plot(x,yx,'ro');

% script that generates the figure 3.4 of Carrier modulation chapter snrindB=0:0.25:18; for i=1:length(snrindB), snr=10^(0.1*snrindB(i)); P2(i)=Qfunct(sqrt(2*snr)); P4(i)=2*Qfunct(sqrt(4*sn

% il3_8fun.m function f=il3_8fun(x,p) f=1/sqrt(2*pi)*exp((-(x-p).^2)/2).*log2(2./(1+exp(-2*x.*p)));

clf, x=linspace(0,8*pi,100); F=inline('sin(x+cos(x+sin(x)))'); y1=sin(x+cos(x+sin(x))); y2=0.2*x+sin(x+cos(x+sin(x))); plot(x,y1,'k:',x,y2,'k-') legend('sin(x+cos(x+sin(x)))','0.2x+sin(x+cos(x+s

clf, x=linspace(0,8*pi,100); F=inline('sin(x+cos(x+sin(x)))'); y1=sin(x+cos(x+sin(x))); y2=0.2*x+sin(x+cos(x+sin(x))); plot(x,y1,'k:',x,y2,'k-') legend('sin(x+cos(x+sin(x)))','0.2x+sin(x+cos(x+s