How to plot time vs frequency in a wavelet transform?

2 visualizaciones (últimos 30 días)
Ajay
Ajay el 1 de Jul. de 2013
Editada: Lisa Justin el 16 de Abr. de 2014
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

Iniciar sesión para responder a esta pregunta.

Respuestas (2)

Jamais avenir
Jamais avenir el 21 de Jul. de 2013
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 el 15 de Abr. de 2014
Editada: Lisa Justin el 16 de Abr. de 2014
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

Categorías

Más información sobre Continuous Wavelet Transforms en Help Center y File Exchange.

Etiquetas

Productos

Community Treasure Hunt

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

Start Hunting!

Translated by