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通信信號識別的經典仿真,有數字的和模擬的,非常有價值

代碼片段和文件信息
%?Prepare?to?sample?a?signal?for?two?seconds
%?at?a?rate?of?100?samples?per?second.
Fsig=1e3;
Fsig1=10;
Fs?=?1000;?%?Sampling?rate
Fc?=?100;?%?Carrier?frequency?in?modulation
ts=1/Fs;
N=1000;
t=(0:ts:N*ts);
Ns=500;
%?Create?the?signal?a?sum?of?sinusoids.
x?=?sin(2*pi*Fsig*t);
subplot(211);
plot(tx);
y?=?amod(xFcFs‘amdsb-tc‘2);?%?Modulate.
subplot(212);
plot(ty);
save(‘AM_from_m.mat‘‘y‘);
figure;
[amptphifreq]=Inst_parameter(yFcFs);
subplot(311);
plot(tampt);
subplot(312);
plot(tphi);
subplot(313);
t=(ts:ts:N*ts);
plot(tfreq);
ymax=Ymax(amptNs)
dp=sigma_dp(amptphiNs)
ap=sigma_ap(amptphiNs)
P=p(yNFcFs)
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????687??2009-05-21?21:43??monishibie\am.asv
?????文件????????687??2008-12-24?09:38??monishibie\am.m
?????文件???????8192??2009-10-15?10:29??monishibie\AM_from_m.mat
?????文件????????625??2008-07-28?20:59??monishibie\am_test.m
?????文件????????742??2008-08-03?18:21??monishibie\DSBSC.m
?????文件????????740??2008-08-02?17:14??monishibie\fm.m
?????文件????????416??2009-01-12?06:31??monishibie\fmfudu.m
?????文件?????240192??2009-10-15?15:00??monishibie\FM_from_m.mat
?????文件????????824??2008-12-22?21:24??monishibie\fsk1.m
?????文件????????691??2008-12-23?08:02??monishibie\fsk2.m
?????文件???????4303??2008-12-24?03:03??monishibie\fsk3.m
?????文件???????2230??2010-03-16?18:28??monishibie\Inst_parameter.asv
?????文件???????2228??2010-03-16?18:28??monishibie\Inst_parameter.m
?????文件????????724??2008-07-28?21:22??monishibie\LSB.m
?????文件????????409??2008-12-24?08:10??monishibie\LSBB.m
?????文件???????2404??2010-03-16?16:58??monishibie\monishibie.asv
?????文件???????2409??2010-03-16?21:44??monishibie\monishibie.m
?????文件????????414??2009-10-16?21:20??monishibie\p.asv
?????文件????????414??2009-01-15?20:39??monishibie\p.m
?????文件????????724??2008-07-29?10:10??monishibie\pm.m
?????文件?????240192??2010-01-19?21:41??monishibie\PM_from_m.mat
?????文件????????571??2010-03-16?18:38??monishibie\qiuzhi.asv
?????文件????????606??2010-03-16?21:40??monishibie\qiuzhi.m
?????文件????????447??2009-01-15?20:40??monishibie\sigma_a.m
?????文件????????520??2009-01-16?03:17??monishibie\sigma_ap.m
?????文件?????????52??2009-01-15?23:28??monishibie\sigma_d.m
?????文件????????501??2009-01-16?03:17??monishibie\sigma_dp.m
?????文件??????52224??2010-03-16?21:59??monishibie\unti
?????文件????????738??2008-08-03?18:22??monishibie\USB.m
?????文件????????134??2009-10-16?21:20??monishibie\ymax.asv
............此處省略29個文件信息
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