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Re: [Discuss-gnuradio] RFID receiver
From: |
Harald Welte |
Subject: |
Re: [Discuss-gnuradio] RFID receiver |
Date: |
Mon, 23 Oct 2006 20:01:42 +0200 |
User-agent: |
mutt-ng devel-20050619 (Debian) |
On Tue, Sep 19, 2006 at 11:55:51AM +0200, Erlend Barstad Strand wrote:
> Hello
>
> As a pre-project to my master-project I am considering making a RFID
> receiver with gnuradio, atleast attempt to. However I recently noticed
> that an RFID detector/receiver is mentioned as a project under
> investigation or progress in the "Exploring GNU Radio"-document.
Sorry for the late reply, but I didn't have a lot of time for keeping up
with mailinglists recently (busy with other free hardware RFID work for
http://openpcd.org).
When you talk about RFID, what kind of system are you talking about?
Which frequency? Which protocols? Magnetic coupling, backscatter or
SAW?
I have quite a bit of experience with RFID on a protocol level. My RFID
hardware related experience is limited to 125kHz and 13.56MHZ magnetic
coupling systems at this point.
I personally would love to see an ISO 18000-6 (UHF RFID) implementation
for gnuradio. The biggest challenge is the analog frontend because of
the 80dB difference between Tx and Rx. you will probably need two
antennas, and switch off / attenuate the Rx path while transmitting.
If you have any questions, just ping me.
Cheers!
--
- Harald Welte <address@hidden> http://gnumonks.org/
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- Re: [Discuss-gnuradio] RFID receiver,
Harald Welte <=