Receiver apparatus using maximum-likelihood-determination

Details Receiver apparatus using maximum-likelihood-determination Receiver apparatus using maximum-likelihood-determination

2004-12-15

2009-10-27

Torres, Juan A (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S316000, C375S347000, C455S101000

Reexamination Certificate

active

07609788

ABSTRACT:
A metric calculating unit calculates a metric based on a provisional determination of a transmission signal and a reception signal. A lattice-point-range setting/estimate-symbol generating unit forms a hypersphere centering around a reception signal point based on the calculated metric or an updated metric, and determines whether a candidate of an estimate symbol is present within the hypersphere. A metric calculating/comparing unit calculates a metric based on the candidate of the estimate symbol and the reception signal, stores a minimum metric and corresponding candidate of the estimate symbol, and updates stored information when a newly calculated metric is minimum.

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