detail and approximation coefficients of discrete wavelet transform
5 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Matlab code to extract coefficients (detail and approximation), and corresponding energy. Formula for energy is shwn in in attached image.
While trying this commands, why cd1 (11 samples), cd2(9 samples) cd3 (8 samples) and cd4 (7 samples) samples are different even the original signal contain 16 samples.
[C,L] = wavedec(inrush1_final(1:16,1),4,'db4');
approx = appcoef(C,L,'db4');
[cd1,cd2,cd3,cd4] = detcoef(C,L,[1 2 3 4]);
[Ea,Ed] = wenergy(C,L)
0 commentaires
Réponses (0)
Voir également
Catégories
En savoir plus sur Wavelet Toolbox dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!