資源簡介
復morlet小波分析,里面包含三個m文件

代碼片段和文件信息
sst?=?sanHe;
%------------------------------------------------------?Computation
variance?=?std(sst)^2;
sst?=?(sst?-?mean(sst))/sqrt(variance)?;
n?=?length(sst);
dt?=1;
time?=?(1964:2011);??
xlim?=?[19642011];??
pad?=?1;??????
dj?=?0.1;???
s0?=?2*dt;????
j1?=fix((log(n*dt/s0)/log(2))/dj);??
%lag1?=?0.72;??
mother?=?‘Morlet‘;
%?Wavelet?transform:
[waveperiodscalecoi]?=?wavelet(sstdtpaddjs0j1mother);
power?=?(abs(wave)).^2?;??????
realpart=real(wave);
modulus=abs(wave);??
phase=atan2(imag(wave)real(wave));?
%------------------------------------------------------?Plotting
%?Plot?wavelet?coefficients?of?time?series
subplot(‘position‘[0.10?0.30?0.80?0.60])
Yticks?=?2.^(fix(log2(min(period))):fix(log2(max(period))));
[ch]=contour(time((period))realpart‘-‘);??
clabel(ch);
xlabel(‘Time?(year)‘)
ylabel(‘Period?(years)‘)
%title(‘a)?Morlet?Wavelet?Real?Part?of?the?Temperature?Anomaly?Series‘)
set(gca‘XLim‘xlim(:))
set(gca‘YLim‘log2([min(period)max(period)])?...
????‘YDir‘‘default‘?...
‘YTick‘log2(Yticks(:))?...
‘YTickLabel‘Yticks)
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????1118??2013-01-05?09:08??小波分析\rain.m
?????文件????????2944??2012-12-28?10:37??小波分析\wave_ba
?????文件????????5460??2012-12-28?17:26??小波分析\wavelet.m
?????目錄???????????0??2013-01-08?17:40??小波分析\
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