Scales at continuous WT and wcoher
1 visualización (últimos 30 días)
Mostrar comentarios más antiguos
Jakub
el 12 de Feb. de 2016
Respondida: Jakub
el 12 de Feb. de 2016
Hello, I still cant quite understand what scales should I choose to examine my signal. Lets say sampling frequency of my signal is 2048Hz and I want to analyze frequencies "pseudofrequencies" rom 1Hz to 60Hz. What scales should I use? According to scal2freq function it would be 16:1048 a but according to Matlab tutorial it is:
dt = 1/2048;
NumVoices = 32;
a0 = 2^(1/NumVoices);
wavCenterFreq = 5/(2*pi);
minfreq = 20;
maxfreq = 500;
minscale = wavCenterFreq/(maxfreq*dt);
maxscale = wavCenterFreq/(minfreq*dt);
minscale = floor(NumVoices*log2(minscale));
maxscale = ceil(NumVoices*log2(maxscale));
scales = a0.^(minscale:maxscale).*dt;
And that gives completly different results. Thank you for help!
0 comentarios
Respuesta aceptada
Más respuestas (0)
Ver también
Categorías
Más información sobre Wavelet Toolbox en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!