Thank you for your response. I've tried gr sounder but from the looks of it, it is only accurate when you use the LFRX/TX or the RFX boards.
I have a WBX transciever and when I tried it on my first shot measuring the channel coefficients by directly connecting the output of my TXA to my RXA, the length of the channel was 32760 coefficients!!!! I haven't been able to figure out how to read the output.dat of the gr-sounder yet but this is what is showing me on debugging mode. It also keeps giving me this warning message: gr_buffer::allocate_buffer: warning: tried to allocate 4 items of size 32760. Due to alignment requirements 512 were allocated. If this isn't OK, consider padding your structure to a power-of-two bytes. On this platform, our allocation granularity is 4096 bytes. Any thoughts? Thank you. Martin Braun-4 wrote: > > On Tue, Oct 05, 2010 at 11:43:53AM -0700, sirjanselot wrote: >> Hello, >> >> I'm trying to figure out how to measure the impulse response of a channel >> its coefficients. > > Hello sirjanselot, > > the channel sounder which is part of GNU Radio works, but has no > synchronisation or anything--so you have no direct means of averaging > taps. Perhaps you can give it a bash, though. > > Cheers, > MB > > -- > Karlsruhe Institute of Technology (KIT) > Communications Engineering Lab (CEL) > > Dipl.-Ing. Martin Braun > Research Associate > > Kaiserstraße 12 > Building 05.01 > 76131 Karlsruhe > > Phone: +49 721 608-3790 > Fax: +49 721 608-6071 > www.cel.kit.edu > > KIT -- University of the State of Baden-Württemberg and > National Laboratory of the Helmholtz Association > > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > -- View this message in context: http://old.nabble.com/How-do-you-measure-the-channel-impulse-response--tp29890077p29896331.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
