Wavelet Pack Decomposition - Is there a faster way?

6 Ansichten (letzte 30 Tage)
John
John am 13 Mär. 2013
I have to do multi-level wavelet decomposition.
I've tried using dwt and calling it recursively. I've also tried using wpdec which returns a tree and then I would extract the coefficients but this takes forever.
Any suggestions?

Melden Sie sich an, um diese Frage zu beantworten.

Antworten (1)

Wayne King
Wayne King am 13 Mär. 2013
Do you want wavelet packet or wavelet? You say multi-level wavelet and then you say wavelet packet.
If you want wavelet packet, why do you say that wpdec() takes forever.
  1 Kommentar
John
John am 13 Mär. 2013
Sorry, I meant wavelet packet. I need successive wavelet transforms of both the detail and approximation coefficients. wpdec takes a while because of the efficiency I am looking for in my algorithm. I need it to be faster.
How can I get the DWT matrix for a N = 8192 sample signal?

Melden Sie sich an, um zu kommentieren.

Kategorien

Mehr zu Signal Analysis finden Sie in Help Center und File Exchange

Tags

Community Treasure Hunt

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

Start Hunting!

Translated by