System and method for pre-FFT OFDM fine synchronization

Details System and method for pre-FFT OFDM fine synchronization System and method for pre-FFT OFDM fine synchronization

2007-04-09

2008-11-04

Wang, Ted (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S260000, C375S340000, C375S355000, C375S371000

Reexamination Certificate

active

07447282

ABSTRACT:
A synchronization unit for performing timing synchronization in the time domain includes storage, a multiplier, a signal analyzer, and a timing error estimation unit. The storage stores a reference signal. The multiplier calculates a sum of minus one product shift and a sum of plus one product shift based on the reference signal. The signal analyzer calculates left and right cross-correlation points based on the sum or minus one product shift and the sum of plus one product shift. The timing error estimation unit estimates a timing error of a received signal based on the left cross-correlation point and right cross-correlation point.

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