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Recent content by bgoharfar

  1. B

    Gadner TED problem with frequemcy offset

    Hi I am implemented Gardner timing error detector(TED) in QPSK modem. I will hope this TED no have any response to frequency drift, But in real circuit It has some output specially in low frequency offset Anyone has experience ?
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    phase noise

    Hi How many phase LO noise need for QPSK modulation and what is the relation between phase noise and data rate? Thanks
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    Carrier recovery in QPSK radio

    Hi I designed and implement a carrier recovery in my QPSK radio. I put this block after A/D and before timing error detector(TED) Also I used hybrid timing recovery. I should to know this point is correct or I have to put it after timing error detector Has anybody solution? Thanks
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