How to make Power Spectral Density in contour form?

2 Ansichten (letzte 30 Tage)
eko supriyadi
eko supriyadi am 9 Sep. 2017
Hi all..
i want to make power spectral density (psd) but in contour form only because so far the psd only made in graphic form, correct me if i'm wrong ..
so i want the y axis is the depth, the x axis is the frequency (cycle/day) and the contours exhibits energy strength..
an example is attached..
so far, i have this script:
[num,txt,raw] = xlsread('current pmtm') ;
depth = num(:,1) ;
[pxx,f,pxxc] = pmtm(x,3.5,length(x),fs,'ConfidenceLevel', 0.95); % iwant use pmtm with confidental level
and i'm stuck here...
I also attach other data (current ts.xls) that will be used when the first data is used not according to the script format to be developed
Tks for your help :)

Antworten (0)


Mehr zu Fourier Analysis and Filtering finden Sie in Help Center und File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by