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   -> Volume 7, Issue 8


Question: How to the decomposition tree level for wavelet packets
 
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Dennis Lee (dennis.lee@eng.monash.edu.au)
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PostPosted: Sun Aug 23, 1998 6:52 am    
Subject: Question: How to the decomposition tree level for wavelet packets
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#26 Question: How to the decomposition tree level for wavelet packets

Dear editor

Application of wavelet packets to fault diagnosis for feature extraction

Many examples using wavelet packets are chosen of decompostion tree
level 3 or 4 for signal analysis. Is there any mathematcal theory or
other references to explain the proper procedure to correctly select
decomposition tree level of wavelet packets ?

For example, I used wavelet packet and decomposition tree level 3 and
got good result to analyse a signal for limited amount of data. Level
3 is selected although the maximum tree level of my signals may be 10.
Hence, why to select level 3 but not level 4? I hope to find any
papers or guideline to correctly select the best decomposition tree
level for particular signals.

Lee Dennis
Monash University, Australia
dennis.lee@eng.monash.edu.au

[Answer WD 7.11 #15]
[Answer WD 7.12 #21]
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