Re: [Discuss-gnuradio] Simple Frame Detection

2015-02-09 Thread Martin Braun
On 02/09/2015 04:32 PM, Daniel Franch wrote: > Actually, I am not using OFDM. What I wish to do is way more simple than > OFDM, but at the same time there seems to be little to no documentation > on how to do it. I will attach a screenshot of how my system is > supposed to be. Sorry, this is a b

Re: [Discuss-gnuradio] Simple Frame Detection

2015-02-09 Thread Tom Rondeau
On Mon, Feb 9, 2015 at 7:59 AM, Martin Braun wrote: > On 02/08/2015 05:27 PM, Brian Padalino wrote: > > The feedback loop cannot be realized inside the flowgraph since > > everything needs to be feed forward. > > > > This is a great example of how someone may want to do RF burst > > processing wh

Re: [Discuss-gnuradio] Simple Frame Detection

2015-02-09 Thread Martin Braun
On 02/08/2015 05:27 PM, Brian Padalino wrote: > The feedback loop cannot be realized inside the flowgraph since > everything needs to be feed forward. > > This is a great example of how someone may want to do RF burst > processing which may not necessarily be "real-time" but due to > dead-air or g

Re: [Discuss-gnuradio] Simple Frame Detection

2015-02-08 Thread Brian Padalino
On Sun, Feb 8, 2015 at 11:01 AM, Aditya Dhananjay wrote: > Hello Daniel, > > Are you using OFDM? If so, read on, otherwise disregard the rest of the > email. This sounds much less like a problem with regards on how to figure out the synchronization but more about how to do it inside the confines

Re: [Discuss-gnuradio] Simple Frame Detection

2015-02-08 Thread Aditya Dhananjay
Hello Daniel, Are you using OFDM? If so, read on, otherwise disregard the rest of the email. Please look at the Schmidl-Cox synchronization method (Robust Frequency and Timing Synchronization for OFDM). In a nutshell, the frame detection works like this: At the transmitter, the packet is created

Re: [Discuss-gnuradio] Simple Frame Detection

2015-02-08 Thread Richard Bell
I'm very interested to learn the answer to this. I'm trying to do the same thing right now. Rich > On Feb 7, 2015, at 10:16 AM, Daniel Franch wrote: > > Hello, > > I have been searching for a simple frame detection scheme for GNURadio > for a while, but everything I've found either doesn't

[Discuss-gnuradio] Simple Frame Detection

2015-02-07 Thread Daniel Franch
Hello, I have been searching for a simple frame detection scheme for GNURadio for a while, but everything I've found either doesn't work or it is more complicated than I expected. What I needed was a block that would be searching for a predetermined sequence used by the transmitter. While it does