On 28 May 2004 12:02:57 -0700, [email protected] (Al) wrote:

>I have an analog waveform defined in the time domain that I need to
>detect and measure. I would like to design a matched filter to
>optimize the signal to noise ratio of the detected waveform.
>
>Although the waveform is a pulse, it is rounded on the top and can not
>really be considered rectangular. The documentation I have been
>finding seems to just talk about rectangular wave shapes for digital
>bit detection. I am doing something different; I want to actually
>measure the pulse area or at least have something proportional to it.
>
>Can someone steer me in the direction of some software or technique
>for designing these types of filters?
>
>Thanks. Al

I think most good comm books usually have a reasonable treatment of
matched filtering. You might peruse a few and look in the ToC and
Index for matched filter or Nyquist filter.

Also, you can think of the receive filter as a correlator, and it
isn't hard to design a correlator for arbitrary waveforms (although,
obviously, some waveforms have better correlation properties than
others).

Eric Jacobsen
Minister of Algorithms, Intel Corp.
My opinions may not be Intel's opinions.
http://www.ericjacobsen.org