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Re: [Discuss-gnuradio] Convolution
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From: |
Tom Rondeau |
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Subject: |
Re: [Discuss-gnuradio] Convolution |
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Date: |
Sun, 17 Nov 2013 11:34:46 -0500 |
On Sun, Nov 17, 2013 at 8:32 AM, Robert James <address@hidden> wrote:
> Hi. I'm new to GNU Radio but have experience with basic DSP (using
> MATLAB for instance). Which blocks can I use to do these simple
> tasks:
>
> 1. Convolution with an arbitrary (constant) wave in the time domain?
> Example: I provide the wave as a fixed series of constants, I'd like
> to convolute with it.
>
> 2. The same thing in the frequency domain?
The fir_filter_XXX does time-domain convolution. You'd pass it a
decimation of 1 and the taps would be the signal you want to convolve
against.
The fft_filter_XXX does fast convolution in the frequency domain.
http://gnuradio.org/doc/doxygen/page_filter.html
Tom