Frequency estimation apparatus and related method

Details Frequency estimation apparatus and related method Frequency estimation apparatus and related method

2005-12-26

2009-11-17

Wang, Ted M (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

C375S316000, C375S340000, C375S344000

Reexamination Certificate

active

07620125

ABSTRACT:
A method of frequency estimation includes (a) receiving frequency correction channel (FCCH) data samples; (b) calculating an estimated frequency offset based on the received data samples; (c) compensating the received data samples using the estimated frequency offset; (d) repeating steps (b)-(c) for a predetermined number of iterations by substituting the compensated data samples for the received data samples in step (b); and (e) summing the estimated frequency offset of each iteration to calculate an overall estimated frequency offset.

REFERENCES:
patent: 5761250 (1998-06-01), Lin
patent: 6463266 (2002-10-01), Shohara
patent: 6801567 (2004-10-01), Schmidl et al.
patent: 7171162 (2007-01-01), Lin et al.
patent: 2005/0113033 (2005-05-01), Lin et al.
Tyler Brown et al., “An Iterative Algorithm for Single-Frequency Estimation”, IEEE Transactions on Signal Processing, Nov. 2002, pp. 2671-2682, vol. 50, No. 11.

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