FIELD: communications.
SUBSTANCE: method and device realize nonlinear transformation, opposite to characteristic of communication channel, using digital block for input of pre-distortions relatively to input broadband signals. Signals with inputted pre-distortions after passing through conversion channel with increase of frequency are amplified by means of power amplifier. Portion of signals, received at output of power amplifier, is sent back to adaptive controller through connection means. Check communication signals are processed by adaptive controller to produce energy of out-band emission as goal function, parameters of pre-distortions of refreshed by using multi-parameter optimal value search module.
EFFECT: higher efficiency.
2 cl, 4 dwg
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