DISTRIBUTION AMPLIFIER LINEARISATION SYSTEM AND METHOD Russian patent published in 2011 - IPC H03F1/32 

FIELD: electricity.

SUBSTANCE: in a linearisation system implementing a method and comprising coupled predistorter (5), HF-modulator (6) and distribution amplifier (DA) (7) (see dwg. 7), and also coupled HF-demodulator (1) and measurement system (2) (see dwg. 6), containing a signal vector analyser (3) and a formation and compression module (4), at the first stage the DA (7) is prepared for manufacturing. A digital modem signal is supplied to the vector signal analyser (3) and to the HF-modulator (6) transferring the digital modem signal from a base band on radio frequency on which the DA (7) functions, and the signal is transferred to the DA (7), and then the amplified signal is transferred to the HF-demodulator (1) (dwg. 6) enabling inverse DA signal transformation from radio frequency into the base band, and the transformed signal is supplied to the vector signal analyser (3) measuring the digital modem signal and the transformed DA signal, and measurement data are transferred to the formation and compression module (4) forming and compressing a conversion table, and also the tables produced by compression are saved in the predistorter (5), (dwg. 7); the second stage involves output signal predistortion with using the tables produced by compression by means of the predistorter (5), and also the predistorted signal is transferred on radio frequency and supplied on an DA input by means of the HF-modulator (6).

EFFECT: method improvement.

11 cl, 13 dwg