Nonlinear distortion compensating device

Details Nonlinear distortion compensating device Nonlinear distortion compensating device

2007-10-09

2007-10-09

Ghayour, Mohammed (Department: 2611)

Pulse or digital communications

Transmitters

Antinoise or distortion

C375S346000, C455S226100, C455S118000

Reexamination Certificate

active

10410323

ABSTRACT:
A nonlinear distortion compensating device splits its operation into two processes. One is a compensation & amplification process for providing a receipt signal with a distortion compensating calculation and amplification before outputting the signal with phase and amplitude compensated. The other is an environmentally adapting process for modulating the signal demodulated from the input signal. Then in this process, a distortion estimating updater estimates a distortion amount using the modulated signal and a feed back signal of parts of the output supplied from the distortion compensating calculator, and updates a distortion compensating coefficient stored in the distortion compensating calculator.

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