Dat-aided frequency offset detection using phase unwrapping

Details Dat-aided frequency offset detection using phase unwrapping Dat-aided frequency offset detection using phase unwrapping

2007-12-04

2007-12-04

Ghayour, Mohammed (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S344000

Reexamination Certificate

active

10494821

ABSTRACT:
A method of detecting frequency errors in a receiver during frame synchronization. A fast synchronization and reliable reception of the data requires a fast determination of frequency errors in the received signal. In CPFSK and OFDM, the frequency offset is even more important because of potential subcarrier interference. The method operates in the time domain and removes the 2p limitation in the phase representation by an unwrap function allowing a precise frequency determination.

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patent: 6035003 (2000-03-01), Park et al.
patent: 6104767 (2000-08-01), Atarius et al.
patent: 6590942 (2003-07-01), Hessel et al.

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