Maximum likelihood estimation of time and frequency offset...

Pulse or digital communications – Spread spectrum – Direct sequence

Reexamination Certificate

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C375S150000, C375S344000, C370S252000, C370S316000, C370S512000

Reexamination Certificate

active

07639733

ABSTRACT:
A receiver in an OFDM system may include a joint maximum likelihood (ML) estimator that estimates both time offset and frequency offset. The estimator may use samples in an observation window to estimate the time offset and frequency offset.

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