Re: [Discuss-gnuradio] DBPSK Modulation

Colby Boyer wrote: There should be an example in blk2impl directory. That's where the code is. You should check the gnuradio-examples/python/digital directory for examples. Tom On Tue, Jul 14, 2009 at 5:16 PM, Muhammad Abrar > wrote: i want to do DBPSK m

Re: [Discuss-gnuradio] gr_mpsk_receiver_cc.cc question

Peng Huo wrote: Hi, Is it possible to split this block into two different ones. Can I do a costas loop block followed by a clock recovery instead of this? Thanks, Peng Yes, both those blocks exist already and you can work with them separately. But you really want to do the recovery jointly.

[Discuss-gnuradio] Re: CUDA GPU Vs CELL BE

>Eric Blossom wrote: > advantage of it. Again from reading, it appears that you need at > least 64 elements that you can apply an instruction to, to be in it's > target zone. For certain parts of our graphs, this is probably OK > (e.g., FEC decode, FIR's, FFTs), but I'm kind of dubious about > an

Re: [Discuss-gnuradio] upconversion problem

On Wed, Jul 15, 2009 at 5:59 PM, wrote: > > I'm using a FLex900 daughterboard with the usrp. I used the usrp_siggen.sh > script from the /gr-usrp/apps folder. > I wanted a sinusoidal carrier(no modulation) at 915Mhz. However after running > the code I observe max. power at 920Mhz in the spectrum

[Discuss-gnuradio] upconversion problem

I'm using a FLex900 daughterboard with the usrp. I used the usrp_siggen.sh script from the /gr-usrp/apps folder. I wanted a sinusoidal carrier(no modulation) at 915Mhz. However after running the code I observe max. power at 920Mhz in the spectrum analyzer and a small peak at 915Mhz. I am not c

Re: [Discuss-gnuradio] Any implementation of Spread Spectrum

Hi Johnathan, I have a few question regarding implementation. The book that you referred earlier was of great help. Thanks. I am sure this won't take a lot of your time and I would be really glad and thankful to you if you answer them. In the transmitter the data and the PN code is ex-or and then

[Discuss-gnuradio] Changing frequency dynamically in benchmark_rx.py

Hi, I am working on a cognitive radio system. the transmitter side senses the spectrum and then transmits on a carrier frequency which it finds free. The receiver should be kept synchronized with the transmitter. The transmitter is for now tx_voice.py and receiver is rx_voice.py. *Assumptions:* Th

[Discuss-gnuradio] Is there any implementation of FHSS in GNURadio

Hi All, I am planning to work on FHSS with GNURadio. Is there any implementation of FHSS in GNURadio aready? Suggestion are welcome! Thank you ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnu

[Discuss-gnuradio] using 2 USRPs with 1 host PC

hi all, I am presently using 1 host PC with 2 USRPs connected to 2 different USB ports. Please let me know where to change the option of which = 0 and which = 1 ? By going for this implementation, what are the performance variations I can expect when compared to the case of 2 USRPs on 2 different P