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資源簡(jiǎn)介

Matlab小波能量譜的程序wavelet energy spectrum

資源截圖

代碼片段和文件信息

figure(1)?
fs=2000;?
t=0:1/fs:1;?
for?i=1:length(t)?
if?t(i)<=0.2?
x(i)=8*sin(60*pi*t(i)+pi/12)+6*sin(240*pi*t(i)+pi/2)+sin(300*pi*t(i)+pi/6);?
else?
x(i)=8*sin(60*pi*t(i)+pi/12)+6*sin(240*pi*t(i)+pi/2)+sin(300*pi*t(i)+pi/6)+20*sin(500*pi*t(i)+pi/3).*exp(-20*(t(i)-0.2));?
end?
end?
plot(tx)?
grid?on?
figure(2)?
wpt=wpdec(x4‘db3‘);?
plot(wpt);?
for?i=0:15?
????figure(3);?
????rfs=wprcoef(wpt[4?i]);?
????subplot(44i+1);?
????plot(rfs);?
????grid?on;?
????title([‘[4?‘num2str(i)‘]‘]);?
????axis([0?2000?min(rfs)?max(rfs)]);?
end?
for?i=0:3?

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????1148??2014-10-29?16:52??WaveletEnergySpectrum.m

-----------?---------??----------?-----??----

?????????????????1148????????????????????1


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