Synchronization of Pseudorandom Signals by Forward-Only Message Passing With Application to Electronic Circuits

@article{Vigoda2006SynchronizationOP,
  title={Synchronization of Pseudorandom Signals by Forward-Only Message Passing With Application to Electronic Circuits},
  author={Benjamin Vigoda and Justin Dauwels and Matthias Frey and Neil Gershenfeld and Tobias Koch and Hans-Andrea Loeliger and Patrick Merkli},
  journal={IEEE Transactions on Information Theory},
  year={2006},
  volume={52},
  pages={3843-3852}
}
It has been observed that a linear-feedback shift-register (LFSR) sequence can be synchronized by feeding the modulated sequence into a "soft" (or "analog") version of the LFSR. In this correspondence, the "soft LFSR" is derived as forward-only message passing in the corresponding factor graph. A continous-time analog (suitable for realization as a clockless electronic circuit) is then given of both the LFSR and the soft LFSR. A connection is thus established between statistical state… CONTINUE READING

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