Re: [Discuss-gnuradio] Type error in byte vector source

>>tuple(numpy.randint(0,256,1000)) Try  map(int, numpy.randint(0,256,1000)) -Sreeraj ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] Flow graph using RTL-SDR or OSMOSDR source doesn't execute on 3.6.4.1

Hi, Did you try example grc flowgraph provided by gr-osmosdr[1] on both of your machines? [1]available in gr-osmosdr/apps folder (https://github.com/mjmdavis/gr-osmosdr/tree/master/apps) --- Regards Sreeraj Rajendran http://home.iitb.ac.in/~rsreeraj

Re: [Discuss-gnuradio] IIR filter

>Thanks for the example links, they were very helpful. There were two >things I was doing wrong: First I didn't use square brackets for the >sets, and to use the biquad calculator featured on earlevel.com, the B >coefficients needed to start with a 1.0 filler and the rest negated >like this: > >F

Re: [Discuss-gnuradio] IIR filter

>Does anyone have a working example of the IIR filter block in GNU >Radio Companion that I can see, and the filter designer app, table, or >equation which generated the coefficients? Could you try grc files attached in http://lists.gnu.org/archive/html/discuss-gnuradio/2012-08/msg00128.html. I

Re: [Discuss-gnuradio] how is file source assigned to payload

http://www.catb.org/~esr/faqs/smart-questions.html   --- Regards Sreeraj Rajendran http://home.iitb.ac.in/~rsreeraj From: manjusha To: Discuss-gnuradio@gnu.org Sent: Friday, 12 April 2013 2:01 AM Subject: [Discuss-gnuradio] how is file source assigned to

Re: [Discuss-gnuradio] Google Summer of Code: We're in!

Kudos Martin...:). That too as a stand-alone project...cool(expecting more project slots this time). P.S. For those who are applying: Don't allow Martin to escape from mentoring. He is a cool guy to work with :).   --- Regards Sreeraj Rajendran http://home.iitb.ac.in/~rsr

Re: [Discuss-gnuradio] Output SPS in pfb_clock_sync

>>So is there any other use of this output SPS? osps (default=1): The osps is the number of output samples per symbol. By default, the algorithm produces 1 sample per symbol, sampled at the exact sample value. This osps value was added to better work with equalizers, which do a better job of

Re: [Discuss-gnuradio] How to capture the PN_Peak value in preamble before normalization during sync in OFDM?

>>Hi guys, >> >>Did anyone know how to print out the PN_peak value in preamble after >>correlation but before normalization process? The sync file is ofdm_sync_pn.py. But I have no idea which block should I modify? Thanks so >>much You can add one "gr.probe_signal_x" in the sync block af

Re: [Discuss-gnuradio] Very low packet loss rate for the discontinuous BPSK communications- the analysis and looking for solution

>>I don't believe this problem can be solved by adjusting the loop bandwidth. Acquisition time is roughly inversely proportional to loop_bw and error variance is proportional to loop_bw. So there is always a tradeoff between acquisition time and tracking performance. You should try adjusting

Re: [Discuss-gnuradio] Very low packet loss rate for the discontinuous BPSK communications- the analysis and looking for solution

nrich Meyr, Section 8.2.2  [2] Two Frequency Estimation SchemesOperating Independently of Timing Information, Ferdinand Classen and Heinrich Meyr   --- Regards Sreeraj Rajendran http://home.iitb.ac.in/~rsreeraj From: Adeel Anwar To: Alex Zhang Cc: discuss-gnurad

Re: [Discuss-gnuradio] grextras in "next"

Thank you Martin. My code is working fine now :). --- Regards Sreeraj Rajendran http://home.iitb.ac.in/~rsreeraj From: Martin Braun (CEL) To: discuss-gnuradio@gnu.org Sent: Thursday, 7 February 2013 6:31 PM Subject: Re: [Discuss-gnuradio] grextras in "

[Discuss-gnuradio] grextras in "next"

, synch_block etc are depreciated. Is grextras integrated to gnuradio different or am I missing something? --- Regards Sreeraj Rajendran http://home.iitb.ac.in/~rsreeraj ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org

Re: [Discuss-gnuradio] Subject: Re: DARPA spectrum challenge teams?

Is this half-committed member ready to become a team lead for two Indian graduate students? Then we would also like to give it a shot. --- Regards Sreeraj Rajendran http://home.iitb.ac.in/~rsreeraj From: "Uher, Jason J." To: "discuss-g

Re: [Discuss-gnuradio] Consuming block of data in python block

As Josh explained in [1] input can be anything that you can represent as a numpy data type. Try using something like gr.block.__init__(self, name="my block",   in_sig=[numpy.dtype((numpy.float32,2))],   out_sig=[numpy.float32]) Also go through fixed/arbitrar

Re: [Discuss-gnuradio] IIR Filter taps

>I just pushed a branch to my github repo called iir_filter that >implements the optional argument to the IIR filter as we discussed. >The default is oldstyle=True and doesn't change any behavior. If you >set this to False, you can directly copy taps from programs like >gr_filter_design (the new

Re: [Discuss-gnuradio] Cyclostationary feature detection using gnuradio

Hi, Some pointers 1) Specest module (https://www.cgran.org/wiki/SpecEst) - FAM for cyclic spectral analysis 2) Variable delay blocks in gr-baz (http://wiki.spench.net/wiki/Gr-baz) -Sreeraj From: john jade To: discuss-gnuradio@gnu.org Sent: Wednesday, 21 Nove