Sitat Harald Welte <[EMAIL PROTECTED]>: > 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).
No problem... > > When you talk about RFID, what kind of system are you talking about? > > Which frequency? Which protocols? Magnetic coupling, backscatter or > SAW? > I have changed the focus of my pre-project sligthly, so I will not try to make an RFID receiver this semester, I might try next though. If I do try this next semester, it will be a RFID receiver of the ISO 14443-2 standard. The aim of the project will simply be to sniff on the communication between a card an a reader. The reason for chosing ISO 14443-2 is simply that I have a RFID reader available using this standard..... > 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 <[EMAIL PROTECTED]> > http://gnumonks.org/ > ============================================================================ > We all know Linux is great...it does infinite loops in 5 seconds. -- > Linus > -- Erlend Barstad Strand _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
