[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Discuss-gnuradio] Efficient notch filters

From: Berndt Josef Wulf
Subject: Re: [Discuss-gnuradio] Efficient notch filters
Date: Tue, 31 Jul 2007 08:47:23 +0930
User-agent: KMail/1.9.7

On Tuesday 31 July 2007 08:29:32 Johnathan Corgan wrote:
> Marcus Leech wrote:
> > Is there a way to produce an efficient notch filter with the bandpass
> > filter designer in Gnu Radio?
> You can subtract the output of a linear phase bandpass filter from the
> original signal, as long as the original signal has been delayed by the
> same number of taps as the filter before the subtraction.

I use the band_reject filter option see below:

        elif options.filter_type == "nf":
                coeffs = gr.firdes.band_reject(
                        frequency - (bandwidth/2),
                        frequency + (bandwidth/2),

For more info consult the documentation,

cheerio Berndt

reply via email to

[Prev in Thread] Current Thread [Next in Thread]