Method and apparatus for gain normalization of a correlation...

Details Method and apparatus for gain normalization of a correlation... Method and apparatus for gain normalization of a correlation...

2005-02-08

2005-02-08

Fan, Chieh M. (Department: 2634)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S316000, C375S324000, C370S310000

Reexamination Certificate

active

06853693

ABSTRACT:
A correlation demodulator unit (20) having gain normalization includes a correlation demodulator (12) for receiving a signal from a receiver (8). The correlation demodulator has a plurality of correlators (C1-CN) corresponding to a plurality of N correlator outputs. A gain normalizer (15) is coupled to the correlation demodulator for accumulating symbol energy on a symbol by symbol basis for each of the plurality of correlator outputs based upon a current symbol decision providing at least an accumulated value within an accumulator (43) for the plurality of correlators and for normalizing the plurality of N correlator outputs using the accumulated value(s).

REFERENCES:
patent: 5208833 (1993-05-01), Erhart et al.
patent: 5398259 (1995-03-01), Tsujimoto
patent: 5579304 (1996-11-01), Sugimoto et al.
patent: 5619154 (1997-04-01), Strolle et al.
patent: 6289048 (2001-09-01), Richards et al.
patent: 6628699 (2003-09-01), Ramberg et al.

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