Re: [Discuss-gnuradio] (no subject)

2014-07-03 Thread Marcus Müller
Hi GP, ofdm_loopback.grc covers only the physical aspects of the transmission. What you are describing is a flow control problem; you'd need to figure out yourself how to make your data stream fit into the packets. A typical way would be to send the length of your file, and then just fill up the

[Discuss-gnuradio] [GSoC] Co-Processors Update #5

2014-07-03 Thread Alfredo Muniz
Hello all, This update is past due. Progress: - Finally got the FFTC to initialize but having trouble sending it data. I suspect there is something wrong with my initialization configuration. I've been able to use devmem2 to see that bits are indeed flipping. Have to look through the QMSS

[Discuss-gnuradio] OFDM based systems - reducing undesired radiation

2014-07-03 Thread Germano
Hello everyone, I am implementing a cognitive communication system inspired by GNURadio's OFDM implementation and some custom designed spectrum sensing and management, medium access control, etc. In order to address OFDM's undesired radiation issues, I am experimenting a technique reviewed

Re: [Discuss-gnuradio] Phase demodulation

2014-07-03 Thread Tom Rondeau
On Tue, Jul 1, 2014 at 12:33 PM, Daniele Nicolodi dani...@grinta.net wrote: On 27/06/2014 20:51, Daniele Nicolodi wrote: This question is not strictly GNURadio related, but I hope to find people more knowledgeable than me here... I have a signal x(t) at a carrier frequency fc which is

[Discuss-gnuradio] missing internal callbacks

2014-07-03 Thread ematlis
Hello- when creating a flowgraph in GRC there are times I would like to change the decimation on-the-fly with a gui slider. However, this does not work because the decimation factor in blocks such as the AM Demod or Decimating Fir Filter does not have an internal callback (as I understand

Re: [Discuss-gnuradio] missing internal callbacks

2014-07-03 Thread Activecat
On Fri, Jul 4, 2014 at 5:40 AM, emat...@yahoo.com wrote: Hello- when creating a flowgraph in GRC there are times I would like to change the decimation on-the-fly with a gui slider. However, this does not work because the decimation factor in blocks such as the AM Demod or Decimating Fir

Re: [Discuss-gnuradio] missing internal callbacks

2014-07-03 Thread Robert McGwier
It is a very difficult thing to implement practically and is so close to necessary limitation that you should just consider it necessary and move on. Bob On Thu, Jul 3, 2014 at 5:40 PM, emat...@yahoo.com wrote: Hello- when creating a flowgraph in GRC there are times I would like to change