How to plot time vs frequency in a wavelet transform?

조회 수: 1 (최근 30일)
Ajay
Ajay 2013년 7월 1일
편집: Lisa Justin 2014년 4월 16일
By using CWT we get the time vs scale plot but to get directly frequency for the corresponding time in a wavelet transform which function or code is used

이 질문에 답변하려면 로그인하십시오.

답변 (2개)

Jamais avenir
Jamais avenir 2013년 7월 21일
Hi, Good question! the scal2frq function shows the corespondent frequencies for each scales. freq = scal2frq(scales,wname,1/Fs); can help you, the Fs is sampling rates.Aslo I have a question too.how did you get time-scale or time-freq plot.I want to have the 2-D plot of frequencies which are involve in a 1-D signal. also take a look at this question and comments please. http://www.mathworks.com/matlabcentral/answers/76023-proper-wavelet-scaling-restricted-frequency-analysis
Lisa Justin
Lisa Justin 2014년 4월 15일
편집: Lisa Justin 2014년 4월 16일
Convert scale to frequency by
frequency= 1/0.033*scale
see http://www.bth.se/fou/cuppsats.nsf/all/315e9a86357c82d8c1257b0b002cc52e/$file/BTH%202013%20Ibeh.pdf

카테고리

Help Center 및 File Exchange에서 Continuous Wavelet Transforms에 대해 자세히 알아보기

태그

제품

Community Treasure Hunt

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

Start Hunting!

Translated by