代码搜索：IP软核
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m ip_09_05.m
% MATLAB script for Illustrative Problem 9.5.
echo on
% First determine the maximal length shift-register sequences.
% Assume the initial shift-register content as "00001".
connections1=[1 0 1 0 0
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m ip_09_06.m
% MATLAB script for Illustrative Problem 9.6.
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 computation
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m ip_09_07.m
% MATLAB scripit for Illustrative Problem 9.7.
echo on
rho_b=0:2:24; % rho in dB
for i=1:length(rho_b),
smld_err_prb(i)=ss_Pe97(rho_b(i)); % simulated error rate
e
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m ip_09_04.m
% MATLAB script for Illustrative Problem 9.4.
echo on
Lc=20; % number of chips per bit
A1=3; % amplitude of the first sinusoidal interference
A2=7; % amplitude of the second sinu
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m ip_08_02.m
% MATLAB script for Illustrative Problem 8.2.
echo on
pn0_db=[-20:0.1:30];
pn0=10.^(pn0_db./10);
capacity=3000.*log2(1+pn0/3000);
pause % Press a key to see a plot of channel capacity vs. P/N0.
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m ip_08_07.m
% MATLAB script for Illustrative Problem 8.7
echo on
ep=0.3;
for i=1:2:61
p(i)=0;
for j=(i+1)/2:i
p(i)=p(i)+prod(1:i)/(prod(1:j)*prod(1:(i-j)))*ep^j*(1-ep)^(i-j);
echo off ;
end
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m ip_08_03.m
% MATLAB script for Illustrative Problem 8.3.
echo on
a_db=[-20:0.2:20];
a=10.^(a_db/10);
for i=1:201
f(i)=quad('il3_8fun',a(i)-5,a(i)+5,1e-3,[],a(i));
g(i)=quad('il3_8fun',-a(i)-5,-a(i)+5,1
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m ip_08_04.m
% MATLAB script for Illustrative Problem 8.4.
echo on
a_db=[-13:0.5:13];
a=10.^(a_db/10);
c_hard=1-entropy2(Q(a));
for i=1:53
f(i)=quad('il3_8fun',a(i)-5,a(i)+5,1e-3,[],a(i));
g(i)=quad('
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m ip_08_09.m
% MATLAB script for Illustrative Problem 8.9.
echo on
k=11;
for i=1:2^k
for j=k:-1:1
if rem(i-1,2^(-j+k+1))>=2^(-j+k)
u(i,j)=1;
else
u(i,j)=0;
end
echo off ;
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m ip_08_01.m
% MATLAB script for Illustrative Problem 8.1.
echo on
gamma_db=[-20:0.1:20];
gamma=10.^(gamma_db./10);
p_error=q(sqrt(2.*gamma));
capacity=1.-entropy2(p_error);
pause % Press a key to see a plo