🚀 go-pugleaf

pappu@vu-vlsi.vill.edu (Strange Attractor) writes:

>I have been trying to generate the Battle-Lemarie wavelet and scaling functions
>I have had some problems in implementing the algorithm given in Mallat's
>paper in that I do not get enough points in the basic scaling function
>phi(0,0).  When I dilate this function, I am not able to evaluate the dilated 
>function wherever I like because of the lack of points. 

     I think this may be a generic problem whenever you use a discrete wavelet
     rather than a continuous one.  Eventually, your wavelet becomes too big 
     for the data and there just aren't enough points left.  If you have a
     continuous function describing the wavelet, you can always add in the 
     missing pieces.

     By the way, don't you just use the same number of coefficients, but
     sample the data stream at larger intervals when dilating the wavelet?

--
Arnold Gill --- astrophysician trainee in exile             gill@physics.ubc.ca