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Re: [Discuss-gnuradio] USRP digital downconverters
From: |
Thomas Tsou |
Subject: |
Re: [Discuss-gnuradio] USRP digital downconverters |
Date: |
Sun, 18 Jul 2010 14:06:10 -0700 |
On Fri, Jul 16, 2010 at 2:30 AM, <address@hidden> wrote:
> Hi,
>
> It sais, that the USRP digital downconverters have a programmable decimation
> rate. What does this decimation rate do? Is this the filter restricting the
> frequencies of the signal + noise?
>
> And how do I change this decimation rate?
Decimation reduces the sample rate of the incoming sequence to a lower
rate. You can find more information about the DDC on the wiki.
http://gnuradio.org/redmine/wiki/1/UsrpFAQDDC
How you set the decimation rate depends on how you use gnuradio. You
may want to look at the following usrp interface file.
usrp/host/include/usrp/usrp_standard.h
Thomas
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- Re: [Discuss-gnuradio] USRP2 + WBX: Unable to receive FM signals, Elvis Dowson, 2010/07/15
- Re: [Discuss-gnuradio] USRP2 + WBX: Unable to receive FM signals, Elvis Dowson, 2010/07/15
- Re: [Discuss-gnuradio] USRP2 + WBX: Unable to receive FM signals, Alexandru Csete, 2010/07/15
- Re: [Discuss-gnuradio] USRP2 + WBX: Unable to receive FM signals, Elvis Dowson, 2010/07/16
- Re: [Discuss-gnuradio] USRP2 + WBX: Unable to receive FM signals, Elvis Dowson, 2010/07/16
- [Discuss-gnuradio] USRP digital downconverters, bjoernm, 2010/07/16
- Re: [Discuss-gnuradio] USRP digital downconverters,
Thomas Tsou <=