Digital reception apparatus

Details Digital reception apparatus Digital reception apparatus

2008-07-22

2008-07-22

Deppe, Betsy L (Department: 2611)

Pulse or digital communications

Receivers

Automatic gain control

C375S346000

Reexamination Certificate

active

11474942

ABSTRACT:
A digital reception apparatus includes a receiver that performs reception processing on a received signal and an adjuster that adjusts the amplitude of the received signal after the reception processing. A distortion estimator estimates a non-linear distortion of the received signal after the reception processing, the non-linear distortion being caused by the reception processing. A distortion corrector performs a distortion correction on the estimated non-linear distortion. A controller controls the adjuster based on a gain control signal such that the amplitude of a desired signal contained in the received signal after the reception processing and the distortion correction approaches a required level. The distortion estimator estimates the non-linear distortion of the received signal with reference to the gain control signal.

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English Language Abstract JP 8-307281.
English Language Abstract of EP 0378719.
P. Fines et al., “Fully digital M-ary PSK and M-ary QAM demodulators for land mobile satellite communications”, Electronics and Communication Engineering Journal, vol. 3, No. 6, pp. 291-298 (Dec. 1991).

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