Channel estimator

Details Channel estimator Channel estimator

2008-04-29

2008-04-29

Wang, Ted (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S130000, C375S148000, C375S229000, C375S340000, C375S349000

Reexamination Certificate

active

10632843

ABSTRACT:
The present invention is a channel estimator based on the values of received data and on a priori probabilities only of received symbols. The channel estimator includes a symbol probability generator, a noise variance estimator and a channel tap estimator. The symbol probability generator generates a priori probabilities only of transmitted symbols found in the received signal(s). The noise variance estimator estimates at least one noise variance corrupting the received signal(s). The channel tap estimator generates channel estimates from the received signal(s), the a priori probabilities and the noise variance(s).

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