代码搜索：IP软核
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www.eeworm.com/read/456354/7351422
m ip_07_01.m
% MATLAB script for Illustrated Problem 1, Chapter 7.
echo on
T=1;
delta_T=T/200; % sampling interval
alpha=0.5; % roll-off factor
fc=40/T; % carrier frequency
A_
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m ip_07_09.m
% MATLAB script for Illustrative Problem 9, Chapter 7
echo on
num=[0.01 1];
den=[1 1.01 1];
[a,b,c,d]=tf2ss(num,den);
dt=0.01;
u=ones(1,2000);
x=zeros(2,2001);
for i=1:2000
x(:,i+1)=x(:,i)+dt.*a*x(:
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m ip_07_02.m
% MATLAB script for Illustrative Problem 2, Chapter 7.
echo on
T=1;
M=8;
Es=T/2;
fc=6/T; % carrier frequency
N=100; % number of samples
delta_T=T/(N-1);
t=0:delta_T:T;
u0=sqrt(2*Es/T)*
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m ip_07_06.m
% MATLAB script for Illustrative Problem 6, Chapter 7.
echo on
SNRindB1=0:2:15;
SNRindB2=0:0.1:15;
M=16;
k=log2(M);
for i=1:length(SNRindB1),
smld_err_prb(i)=cm_sm41(SNRindB1(i)); % simulated error
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m ip_07_07.m
% MATLAB script for Illustrative Problem 7, Chapter 7.
echo on
Tb=1;
f1=1000/Tb;
f2=f1+1/Tb;
phi=pi/4;
N=5000; % number of samples
t=0:Tb/(N-1):Tb;
u1=cos(2*pi*f1*t);
u2=cos(2*pi*f2*t);
% assum
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m ip_07_03.m
% MATLAB script for Illustrative Problem 3, Chapter 7.
echo on
SNRindB1=0:2:10;
SNRindB2=0:0.1:10;
for i=1:length(SNRindB1),
[pb,ps]=cm_sm32(SNRindB1(i)); % simulated bit and symbol error rates
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m ip_07_05.m
% MATLAB script for Illustrative Problem 5, Chapter 7.
echo on
SNRindB1=0:2:12;
SNRindB2=0:0.1:12;
for i=1:length(SNRindB1),
smld_err_prb(i)=cm_sm34(SNRindB1(i)); % simulated error rate
echo off ;
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m ip_07_10.m
% MATLAB script for Illustrative Problem 10, Chapter 7.
echo on
alpha=0.4;
T=1/4800;
t=[-3*T:1.001*T/100:3*T];
x=sinc(t./T).*(cos(pi*alpha*t./T)./(1-4*alpha^2*t.^2/T^2));
pause % Press any key to see
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m ip_09_04.m
% MATLAB script for Illustrative Problem 4, Chapter 9.
echo on
Lc=20; % Number of chips per bit
A1=3; % amplitude of the first sinusoidal interference
A2=7; % amplitude of the second
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m ip_09_06.m
% MATLAB script for Illustrative Problem 6, Chapter 9.
echo on
rho_b1=0:5:35; % rho in dB for the simulated error rate
rho_b2=0:0.1:35; % rho in dB for theoretical error rate compu