Method and apparatus for processing signals received from a...

Details Method and apparatus for processing signals received from a... Method and apparatus for processing signals received from a...

2007-12-04

2007-12-04

Ghayour, Mohammed (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S355000, C375S316000

Reexamination Certificate

active

10145432

ABSTRACT:
A receiver includes a channel length determination unit to determine a channel length for use by a channel estimator. In at least one embodiment, an iterative process is used to find a channel length (or a combination of channel length and one or more other channel related parameters) that optimizes a channel estimation quality criterion. A time tracking method is also provided that uses an early metric, a center metric, and a late metric to determine an appropriate timing.

REFERENCES:
patent: 5251237 (1993-10-01), Baier
patent: 6104769 (2000-08-01), Rainish
patent: 6563894 (2003-05-01), Rainish
patent: 6907092 (2005-06-01), Yakhnich et al.
patent: 2001/0036235 (2001-11-01), Kadous
Cross-spectrum based blind channel identification Pozidis et al. ; Signal Processing, IEEE Transactions on [see also Acoustics, Speech, and Signal Processing, IEEE Transactions on];vol. 45, Issue 12, Dec. 1997 pp. 2977-2992.

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