Tuesday, February 15, 2011

GNU Radio TX/RX text via DQPSK

I am attempting to transfer a text file using the USRP an DQPSK modulation. I connected constellation sinks to both the transmit and receive sides.

TX constellation:


RX constellation:

I am using a packet encoder/decoder on both ends, but the packet_decoder is not producing any output.

UPDATE: So on the RX side it appears my gain was too high. After adjusting it I get much better results.

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3 comments:

  1. AnonymousMay 2, 2011 at 3:23 PM

    I am doing the project on GRC, this is quite similar to my project, can you please send me the flow graph.
    Thank you

    ReplyDelete
  2. AnonymousMay 2, 2011 at 3:29 PM

    Please send me the flow graph, if you have flow graph of ofdm Tx/RX, please do send that as well.
    amritkharel9@gmail.com
    Thank you.

    ReplyDelete
  3. UnknownMay 27, 2013 at 11:18 PM

    u doing the project use GRC or python programming?can you please send me the flow graph Tx and Rx or python script.

    Thanks,

    ReplyDelete

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