Fs?=?1000;????????????????????%?Sampling?frequency
T?=?1/Fs;?????????????????????%?Sample?time
L?=?1000;?????????????????????%?Length?of?signal
t?=?（0:L-1）*T;????????????????%?Time?vector
%?Sum?of?a?50?Hz?sinusoid?and?a?120?Hz?sinusoid
x?=?0.7*sin（2*pi*50*t）?+?sin（2*pi*120*t）;
y?=?x?+?2*randn（size（t））;?????%?Sinusoids?plus?noise
figure（31）;
plot（x）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????587??2013-05-14?21:15??PLC_matlab\backup\butterworth.m

?????文件????????679??2013-05-15?22:21??PLC_matlab\backup\butterworth濾波器及信號時頻域圖.m

?????文件???????3674??2013-05-18?15:50??PLC_matlab\backup\nrand.m

?????文件???????1985??2013-05-17?22:44??PLC_matlab\backup\synchronous.m

?????文件???????3548??2013-05-15?21:17??PLC_matlab\backup\高斯白噪聲+濾波器+有色噪聲.m

?????文件????????363??2013-05-16?09:56??PLC_matlab\buf.m

?????文件????????291??2007-02-24?01:10??PLC_matlab\freqspec.m

?????文件???????3349??2013-05-23?10:47??PLC_matlab\noise_asynchronous.m

?????文件???????3836??2013-05-20?23:12??PLC_matlab\noise_colored.m

?????文件???????5425??2013-05-23?10:23??PLC_matlab\noise_narrow.m

?????文件???????3702??2013-05-22?10:15??PLC_matlab\noise_rand.m

?????文件???????2078??2013-05-23?11:44??PLC_matlab\noise_synchronous.m

?????文件????????351??2013-05-08?10:38??PLC_matlab\note.txt

?????文件????????303??2007-01-12?17:25??PLC_matlab\powerspec.m

?????文件????????156??2006-12-31?13:20??PLC_matlab\quantify.m

?????文件????????387??2013-05-16?09:42??PLC_matlab\Spectrum_Calc.m

?????文件???????7647??2013-07-25?14:39??PLC_matlab\仿真代碼201307\asyn_noise\asyn_noise.cpp

?????文件???????4332??2013-07-18?10:13??PLC_matlab\仿真代碼201307\asyn_noise\asyn_noise.dsp

?????文件????????526??2013-07-18?10:03??PLC_matlab\仿真代碼201307\asyn_noise\asyn_noise.dsw

?????文件??????41984??2013-07-25?14:42??PLC_matlab\仿真代碼201307\asyn_noise\asyn_noise.ncb

?????文件??????53760??2013-07-25?14:42??PLC_matlab\仿真代碼201307\asyn_noise\asyn_noise.opt

?????文件???????1451??2013-07-25?14:39??PLC_matlab\仿真代碼201307\asyn_noise\asyn_noise.plg

?????文件?????245827??2013-07-25?14:39??PLC_matlab\仿真代碼201307\asyn_noise\Debug\asyn_noise.exe

?????文件?????270748??2013-07-25?14:39??PLC_matlab\仿真代碼201307\asyn_noise\Debug\asyn_noise.ilk

?????文件??????21801??2013-07-25?14:39??PLC_matlab\仿真代碼201307\asyn_noise\Debug\asyn_noise.obj

?????文件?????235228??2013-07-22?14:33??PLC_matlab\仿真代碼201307\asyn_noise\Debug\asyn_noise.pch

?????文件?????566272??2013-07-25?14:39??PLC_matlab\仿真代碼201307\asyn_noise\Debug\asyn_noise.pdb

?????文件??????41984??2013-07-25?14:39??PLC_matlab\仿真代碼201307\asyn_noise\Debug\vc60.idb

?????文件??????53248??2013-07-25?14:39??PLC_matlab\仿真代碼201307\asyn_noise\Debug\vc60.pdb

?????文件?????237619??2013-07-25?09:04??PLC_matlab\仿真代碼201307\noise_colored\Debug\fileter2.exe

............此處省略96個文件信息