Well it depends, on the problem. If you have a radio that is transmitting in the same channel as another radio, then you can directly feed one to the noise channel and receive the other at the antenna.
I know in radio astronomy people have been using this technique to cancel interference from the earth to receive signals from the stars. I guess it is a matter of how much isolation you can get between the two. Jan On Mon, Jun 21, 2010 at 4:19 PM, Kunal Kandekar <kunalkande...@gmail.com>wrote: > I am not aware of any previous work of this type, but it's > interesting. Out of curiosity, how would you make sure the second > channel does not include the signal as well? To cancel out noise, both > receivers would need to be relatively close to each other to receive > the same noise, which means they would both receive the signal as > well. > > Kunal > > > On Mon, Jun 21, 2010 at 2:52 PM, sirjanselot <acosta.j...@gmail.com> > wrote: > > > > Hey guys, > > > > Has anyone ever tried to make an active canceller using the USRP radios? > > > > Basically what I would like to do is use the USRP radio to receive two > > channels, one which has the noise and the other has the same noise + a > > signal of interest. The goal is to use an algorithm that finds the > > coefficients of an adaptive filter to cancel out the noise in the channel > > with the signal of interest and retransmit it out. > > > > Please let me know. > > > > Thanks! > > > > Jan > > -- > > View this message in context: > http://old.nabble.com/Active-Cancellation-tp28906362p28906362.html > > Sent from the GnuRadio mailing list archive at Nabble.com. > > > > > > _______________________________________________ > > Discuss-gnuradio mailing list > > Discuss-gnuradio@gnu.org > > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > >
_______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
