[Discuss-gnuradio] A Chunks to Symbols Related Question

2012-01-12 Thread Domenic Magazu III
All, In creating an application that requires Pulse Position Modulation we generated a GRC file using the chunks to symbols block. Everything worked perfectly except in small areas where we need the amplitude to remain unchanged (~ at zero). 1s are mapped to 10 and 0's are mapped to 01. Doe

[Discuss-gnuradio] Pulse Position Modulation

2011-12-15 Thread Domenic Magazu III
Looking for some help in creating a Pulse Position Modulation block. I haven't seen anything on the latest versions of uhd + gnuradio. My only starting point is to use the time_spec for determining when my pulses will be transmitted. Does anybody have experience with this type of modulation and

[Discuss-gnuradio] DPSK Block - Verifying Received Message

2011-12-09 Thread Domenic Magazu III
All, I was playing around with the DPSK block provided with GNU Radio. I was able to get my two USRPs talking to each other. I placed a file sink on the random source generator (set to transmit 10 random binary digits) and I'm able to see what was actually sent from that file (command: od -d f