Best comb filter
Best comb filter
Here's a general question for the DSP experts out there: What's a better algorithm for comb filtering 50/60 hZ noise and it's harmonics from a signal? FIR, or IIR?
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- Location: Lwr Sackville, Nova Scotia, Canada
C+ Example - 5 cascaded band stop filters - Second Order IIR
Larry,
I can't answer your question directly but I have source code for a DSP example written in C+ that uses the following:
- Band stop filter with high Q
- For 16 bit numbers the attenuation of Notch freqs - better than 90dB-
- Second Order IIR cascaded network of n = 5 band stop filters
Harmonics Removed :
60Hz
120 Hz
180 Hz
240 Hz
300 Hz
I can't answer your question directly but I have source code for a DSP example written in C+ that uses the following:
- Band stop filter with high Q
- For 16 bit numbers the attenuation of Notch freqs - better than 90dB-
- Second Order IIR cascaded network of n = 5 band stop filters
Harmonics Removed :
60Hz
120 Hz
180 Hz
240 Hz
300 Hz
Re: Best comb filter
Hi Bob,
I am working on a project that requires a 60Hz comb filter for a DSP. I would like to talk to you about the code you written. Thanks.
I am working on a project that requires a 60Hz comb filter for a DSP. I would like to talk to you about the code you written. Thanks.