Digital compensation for nonlinearities in a polar transmitter

Details Digital compensation for nonlinearities in a polar transmitter Digital compensation for nonlinearities in a polar transmitter

2011-06-14

2011-06-14

Ha, Dac V (Department: 2611)

Pulse or digital communications

Transmitters

Antinoise or distortion

C375S146000, C375S285000, C455S114200, C455S115100

Reexamination Certificate

active

07961812

ABSTRACT:
A polar transmitter includes a digital processor coupled to receive a complex modulated digital signal and a feedback signal produced from the complex modulated digital signal and that is operable to compare the complex modulated digital signal to the feedback signal to determine an error signal indicative of a difference between the complex modulated digital signal and the feedback signal. The digital processor is further operable to produce a correction signal from the error signal and to add the correction signal to the complex modulated digital signal to produce a corrected complex modulated digital signal.

REFERENCES:
patent: 7362818 (2008-04-01), Smith et al.
patent: 7728665 (2010-06-01), Watanabe
patent: 7778352 (2010-08-01), Jensen et al.

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