Diversity receiver for dispersive channels, combining reliabilit

Details Diversity receiver for dispersive channels, combining reliabilit Diversity receiver for dispersive channels, combining reliabilit

1995-02-09

1996-06-25

Chin, Stephen

Pulse or digital communications

Receivers

Interference or noise reduction

455137, 375229, H04L 102

Patent

active

055307256

ABSTRACT:
At least two receiving branches receive incoming signals corresponding to a transmitted data sequence. Each branch includes an equalizer for producing an estimate of the transmitted data sequence, and providing for each data element a reliability information signal representing a computed probability that the data symbol or value for that element is correct. The receiver selects as a most probable estimate the symbol or value having the highest sum of the reliability information signals from the receive branches. Preferably, for a binary system, each branch provides a single numerical value whose sign identifies the symbol (e.g., 1 or 0), and whose absolute value is its probability. The single numerical values from the branches are simply added to determine the best estimate for that element.

REFERENCES:
patent: 3879664 (1975-04-01), Monsen
patent: 4271525 (1981-06-01), Watanabe
patent: 4328582 (1982-05-01), Battail et al.
patent: 4606047 (1986-08-01), Wilkinson
patent: 5119400 (1992-06-01), Koch
patent: 5127025 (1992-06-01), Okanoue

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