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--- In , karl.lunt@a... wrote: > You can get an excellent tool for characterizing various filters from > Nuhertz Technologies (www.nuhertz.com). I used their Filter Free Ta, will have a look when time permits. > One aspect of this filtering discussion that needs mentioning is sample > rate. > You can have an excellent filter algorithm set up, and lose all > benefits from it by sampling at the wrong rate. The theory says to sample at least at twice the frequency of interest, I believe in oversampling a tad, just in case. One of the reasons lenghty algoritms can be counter productive, you can run out of CPU cycles real quick even when dealing with things happening on a geological time scale. Cheers, Theo |
Software Filtering of an ADC input
Started by ●March 7, 2004
Reply by ●March 8, 20042004-03-08
