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   -> Volume 7, Issue 4


Question: Error in Matlab wavelet toolbox manual?
 
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"Awais M. Hussain" (awais.hussain@tes-cressoft.com.pk)
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PostPosted: Thu Jan 01, 1970 12:59 am    
Subject: Question: Error in Matlab wavelet toolbox manual?
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#26 Question: Error in Matlab wavelet toolbox manual?

Question:

The MATLAB wavelet toolbox manual on p.6-13 (1996) defines the DWT
of a signal s(n) as:
C(j,k) = sum_{n in Z} s(n) g_{j,k} (n)
with
g_{j,k}(n) = 2^{-j/2} g( 2^{-j} n - k)
where g(n) is the wavelet filter's impulse response (discrete-
time). Thus g_{j,k} are the dilations of the discrete filter?
This does not appear to be the correct representation of the DWT. Can
someone explain?

Awais

[Answer WD 7.5#25]
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