Method and apparatus for joint phase offset and frequency...

Details Method and apparatus for joint phase offset and frequency... Method and apparatus for joint phase offset and frequency...

2003-04-02

2008-09-23

Burd, Kevin M (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

Reexamination Certificate

active

07428272

ABSTRACT:
Disclosed are a method and an apparatus for joint phase and frequency offset estimator for an MPSK transmission, in which the overall observation interval is divided into adjacent sub-intervals and a folded separate phase estimate is independently obtained from each of sub-intervals and is then unfolded to remove the discontinuity in computing phase estimate. The phase offset is then computed by averaging the unfolded phase estimates whereas the frequency offset is computed by averaging the differences between adjacent unfolded phase estimates.

REFERENCES:
patent: 6353642 (2002-03-01), Asahara et al.
patent: 6373827 (2002-04-01), Tayebi et al.
patent: 6421399 (2002-07-01), Avidor et al.

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