Distortion compensator

Details Distortion compensator Distortion compensator

2007-07-24

2007-07-24

Ghayour, Mohammed (Department: 2611)

Pulse or digital communications

Transmitters

Antinoise or distortion

C455S126000, C375S295000, C375S232000, C375S224000

Reexamination Certificate

active

10502512

ABSTRACT:
A coefficient computing section, for computing a characteristic reverse to an input/output characteristic of the power amplifier, is configured by a fixed coefficient storing section and an error coefficient computing section. The fixed coefficient storing section is previously stored with the characteristic reverse to a pre-measured input/output characteristic. The error coefficient computing section computes an error coefficient between a characteristic stored in the fixed coefficient storing section and a current characteristic of the power amplifier. When the determining section determines that the adjacent-channel leak current power ratio is greater than a predetermined value, an operation halt is instructed to the power amplifier.

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