Pre-distortion apparatus and method for recovering nonlinear...

Details Pre-distortion apparatus and method for recovering nonlinear... Pre-distortion apparatus and method for recovering nonlinear...

2006-06-27

2006-06-27

Nguyen, Simon (Department: 2685)

Telecommunications

Transmitter

C455S114300, C455S126000, C375S296000

Reexamination Certificate

active

07068980

ABSTRACT:
A pre-distortion apparatus and method for recovering nonlinear distortion of a high power amplifier. The pre-distortion apparatus includes: a demodulator for demodulating a signal outputted from the high power amplifier, generating a demodulated signal; a first storage unit for storing the demodulated signal outputted from the demodulator; a second storage unit for storing a reference transmission signal outputted from a transmitter of a transmitting system; a digital signal processor for calculating a pre-distortion coefficient by comparing the demodulated signal and the reference transmission signal stored at the first storage unit and the second storage unit; and a third storage unit for storing the pre-distortion coefficient calculated at the digital signal processor.

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