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   -> Volume 4, Issue 3


Question: Wavelets and signal extrapolation
 
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godfrey@hfrd.dsto.gov.au
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PostPosted: Mon Dec 02, 2002 5:45 pm    
Subject: Question: Wavelets and signal extrapolation
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Question: Wavelets and signal extrapolation

I am currently looking through a number of papers on signal
extrapolation with wavelets written by Dr s Xia, Lin, Jay Kuo and
Zhang. I am hoping to apply the algorithms to High Frequency Radar data.
The format of the data is either 128 or 256 samples, 1-dimensional, complex.
We obtain the wavelet coefficients via MRA using Daubechies wavelets for
which the signal needs to be a power of 2.

Given this, I need to determine first of all if the signal is scale-time
limited. I tried the condition x=D^-1*P_JK*D*x, but couldn't see how P_JK was
to be applied as the wavelet coefficients were non-zero for all scales J.

I would like to hear from anyone who has implemented the Discrete
Generalized Papoulis-Gerchberg alogrithm on measured data. Is there any
paricular software available ?

Susan Godfrey

HF Radar Division Defence Science and Technology Organisation
Salisbury, South Australia 5108
phone : +61 8 259 6775 fax : +61 8 259 6673
e-mail: godfrey@hfrd.dsto.gov.au
All times are GMT + 1 Hour
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