Re: [Discuss-gnuradio] The PLL for the burst signal

2017-04-25 Thread Jesse Reich
Hi Vicfield, I actually work on the ground system that receives these signals. They are distress signals from different beacons: EPIRBs (boats), ELTs (planes), PLBs (hikers or anyone who wants a handheld device) that are captured or relayed through satellites to the ground. This allows rescue auth

Re: [Discuss-gnuradio] Sample rate of file souce/sink

2016-03-19 Thread Jesse Reich
of samples > going through the flow graph, e.g. a complicated calculation that is > CPU-bound, then that will put up its own backpressure. Together with the > backpressure of the throttle block, that might decrease average rate even > below the throttle's rate. > > For a deeper und

Re: [Discuss-gnuradio] dive into gnu-radio

2016-03-18 Thread Jesse Reich
I had to reply to Kevin because I am literally laying in bed reading "Digital Signal Processing: A Guide for Scientists and Engineers" as his email came in. I'm on a similar journey (about three months in) and just wanted to reiterate that while GRC seems to be a very powerful tool, it can't be

[Discuss-gnuradio] Sample rate of file souce/sink

2016-03-15 Thread Jesse Reich
This is probably embarrassingly simple but I can't seem to find the answer anywhere. I just recorded a signal to a file sink with a sample rate of 100k. I go to use that file as a source with a throttle set to 100k and it seems to playback at approximately 1/10 the speed. When I step up the throttl

Re: [Discuss-gnuradio] Tutorial on BPSK bursts

2016-03-08 Thread Jesse Reich
repo > > helpful. > > According to Balint though, the PLL is supposed to go after clock > > recovery, > > not before. > > > > https://github.com/tkuester/gr-psk31 > > > > - Tim > > > > On Fri, Mar 4, 2016 at 8:56 PM, Jesse Reich wrote: > &

[Discuss-gnuradio] Tutorial on BPSK bursts

2016-03-04 Thread Jesse Reich
So I've been playing with GNU Radio for about 2 months and trying to learn about signals and signal processing in general. Mostly out of curiosity that has sprung up from my profession. I am an Aerospace engineer by training and I work as a satellite ground systems engineer for the Cospas-Sarsat pr

Re: [Discuss-gnuradio] Building GNU-Radio for Windows

2016-02-15 Thread Jesse Reich
y be possible, but may require additional work. Just > depends how UNIX-dependent the code is. > > Geof > www.gcndevelopment.com > > On Mon, Feb 15, 2016 at 11:39 PM, Jesse Reich wrote: > >> Neel, >> Thank you much for that link. I've also tried to build on W

Re: [Discuss-gnuradio] Building GNU-Radio for Windows

2016-02-15 Thread Jesse Reich
Neel, Thank you much for that link. I've also tried to build on Windows using mingw, cygwin and probably a few others to no avail. Will have to give that binary a try tonight assuming I have an AVX2 which I think I do if I have an i7 processor. Does anyone know if you will be limited in using othe