[Discuss-gnuradio] channel estimation project? (LS, dictionary based compressed sensing, matching pursuit, etc.)

2013-12-01 Thread Nasi
Dear All, Do you know any project related to channel estimation e.g., dictionary based compressed sensing, matching pursuit? Thanks in advance! -- NE___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/di

[Discuss-gnuradio] Can no longer build packages for PPA

2013-12-01 Thread Alexandru Csete
Greetings, Lately, I have been having increasing difficulties with building gnuradio successfully on the Ubuntu PPA builders. I think the problems is that the builds run in emulated environments and the builder is not as powerful as a modern desktop. Consequently, it will die on one of the swig fi

Re: [Discuss-gnuradio] trouble with gr_multiply_const_ff

2013-12-01 Thread atools_cook
Tom, Value of the signal after the multiply_const block is amplitude, We set the amplitude as much as 5000 to increase the transmit power of signal is an advice from the developer of gen2_reader project Michael Buettner, so it would be ok. You said that the UHD transmitter takes signal samples f

Re: [Discuss-gnuradio] trouble with gr_multiply_const_ff

2013-12-01 Thread Marcus D. Leech
On 12/01/2013 09:24 PM, atools_cook wrote: Tom, Value of the signal after the multiply_const block is amplitude, We set the amplitude as much as 5000 to increase the transmit power of signal is an advice from the developer of gen2_reader project Michael Buettner, so it would be ok. You said th

Re: [Discuss-gnuradio] trouble with gr_multiply_const_ff

2013-12-01 Thread atools_cook
Marcus, Thanks for your advice and we do use the "very old" code exactly. Would you please elaborate the "backing things off" things because I can't your point of it. Best Lee -- View this message in context: http://gnuradio.4.n7.nabble.com/trouble-with-gr-multiply-const-ff-tp45018p45039.htm

Re: [Discuss-gnuradio] trouble with gr_multiply_const_ff

2013-12-01 Thread Ian Buckley
Lee, What Marcus and Tom are telling you is that when a signal reaches a USRP Sink in GNURadio it is transformed into an integer representation that is weighted so that the integers represent values -1 <= x < 1. Input values with magnitudes larger than these will be saturated to these limits,