[BLACKBOX] LibVector question

From: [at]} <Wojtek>
Date: Wed, 25 Mar 2009 17:57:37 -0400

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Robert:

   after a break I am back to using Lib for a small but important
project. I need to apply custom digital filters to waveform digitizer
data. I prefer not to use Filters because Filters look like
overkill. I thought of coding from scratch, but before I started
I fortunately looked at LibVectors. Both the convolution and the
correlation are there, so I can use LibVectors and on that occasion
brush up my knowledge concerning LibPlotters etc.

Before I start, I have a couple silly questions.

1. Is it advisable to upgrade Lib now to the new revision?
   The one I have on disk is a few years old.

2. Which function would you advise to digitally filter a waveform
   with a filter? (Waveform has 1k samples, the filter has about
   40 coefficients.)

    res := Corr (waveform, filter);
    res := Conv (waveform, filter);

Why are there two functions anyway? The math seems almost the same
except for indexing. What is the reason for the two indexing schemes?

Thank you,

Wojtek

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Received on Wed Mar 25 2009 - 22:57:37 UTC