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  • Users: johnwiss
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  1. johnwiss

    Low SNR PLL

    I need to develop a digital phaselock loop to track a very low SNR quadraphase signal. The Esym/No is around 0.5 dB and there is a lot of doppler (1kHz/sec change for a 32 ksym/sec modulation rate). I have seen smoothers and Kalman-type approaches and they are pretty complicated and I need to...
  2. johnwiss

    Low SNR PLL

    I need to develop a digital phaselock loop to track a very low SNR quadraphase signal. The Esym/No is around 0.5 dB and there is a lot of doppler (1kHz/sec change for a 32 ksym/sec modulation rate). I have seen smoothers and Kalman-type approaches and they are pretty complicated and I need to...
  3. johnwiss

    RLS and DFE

    Anyone know how to modify the Recursive Least Squares (RLS) formulation for a Decision Feedback Equalizer (DFE)? Do you just augment the equations to include the taps in the feedback filter instead of just a linear transversal formulation?

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