Well, you could simply use a FSK receiver, and send a specific sequence of symbols for 1 and the inverse sequence for 0, and just correlate against that sequence.
Best regards, Marcus On 11/11/2015 09:41 PM, abhinav narain wrote: > Hi Marcus, > > > So, maybe we should take a step back and ask: *what* is the *data* > you're trying to transmit? Transmitting a single bit at a time > sounds so unlikely. > > You are right, my research requires the exact thing - to transmit a > single bit sparingly as it is unlikely to think that was a message. > I think I might want to do external synchronization to demonstrate > this idea, but I am unsure how to kickstart and test it using N210 > USRP hardware. Any suggestions will be greatly appreciated! > > Thanks, > Abhinav > > > > Best regards, > Marcus > > > > > On 11/11/2015 08:26 PM, abhinav narain wrote: >> Hi Marcus, >> Will be really great if you could look at the last part of my mail. >> My specific questions is - >> Lets say I transmit two PPM frames... 1100 and 1101 >> >> say: *1100*00000000*1101* >> The number of non-bold zeros are what I am filling in between the >> information frames at transmitter. >> But at receiver, I get more number of non-bold zeroes than what I >> expect(=8). >> >> Is this something that I cannot solve because of >> clock-drift/synchronization, or is my flow graph incorrect >> causing this ? >> >> Thanks, >> Abhinav >> >> >> On Tue, Nov 10, 2015 at 12:58 PM, abhinav narain >> <[email protected] <mailto:[email protected]>> wrote: >> >> >> >> On Tue, Nov 10, 2015 at 12:45 PM, Marcus Müller >> <[email protected] <mailto:[email protected]>> >> wrote: >> >> Hi Abhinav, >> >> sorry, I might just be tired right now, but I don't >> understand this >> sentence: >> >> On 10.11.2015 21:18, abhinav narain wrote: >> > I have now fallen to doing PPM where I map {0,1} bits >> to {101,11} >> > symbols on the transmitter side, where 0 in 101 is >> equivalent to x 1x1 >> > as I don't transmit anything in that slot too. >> >> >> >> I'd expect Pulse Position Modulation symbols to have the >> same length, >> but with the non-zero element being at a different >> position; maybe I'm >> just misunderstanding? >> >> Yes, sorry - lets say 1010 and 1100 as the two PPM codes. >> >> >> Thanks, >> Abhinav >> >> >> >> >> Best regards, >> Marcus >> >> >> > >
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