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Re: [Discuss-gnuradio] mean value block

From: Trond Danielsen
Subject: Re: [Discuss-gnuradio] mean value block
Date: Thu, 3 May 2007 10:31:07 +0200

2007/5/3, konvak <address@hidden>:
hi all,
          I would be interested in getting and displaying some
statistical information (mean, variance...) about received signal (let's
say for educational purposes to try to determine what kind of modulation
I am receiving). Is there any way to get let's say the mean value of the
signal without writing a new block. The only thing I came across is
gr.probe_signal_f() to get the value of the signal. Is it possible to
get _every_ sample with this, somehow I don't think it would work. So do
I really need a new block?

thanks for any suggestions and help,

I have attached a patch that adds a gr_mean_XX block to gnuradio-core.
The block calculates the arithmetic mean of a single vector. The
variance block should be quite easy to create using this one as a
template. I have not added the various bits and pieces to Makefile.am
etc, but that should (in theory... :) ) not be too hard.


Trond Danielsen

Attachment: gr_mean_XX.patch
Description: Text Data

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