Amplifiers – Hum or noise or distortion bucking introduced into signal...
Patent
1997-05-08
1999-05-04
Pascal, Robert
Amplifiers
Hum or noise or distortion bucking introduced into signal...
332103, 332162, H03F 126
Patent
active
059007788
ABSTRACT:
A high power amplifier system includes an on-line adaptive predistorter for generating predistorted complex data signals to a high power amplifier in response to receiving incoming complex data signals from a remote source. The predistorted complex data signals enable the high powered amplifier to output signals corresponding to the incoming complex data signals. The amplifier system includes an off-line adaptive predistorter which has an adaptive parametric forward filter for combining predistorted complex data signals and demodulated complex data signals, produced from the output of the high power amplifier, to produce an optimized forward amplitude filter that emulates the forward amplitude response of the amplifier, and an optimized inverse phase filter that emulates the inverse phase response of the amplifier. An adaptive parametric inverse filter combines random amplitude data and the optimized forward amplitude filter of the amplifier to produce an optimized inverse amplitude filter that emulates the inverse amplitude response of the amplifier. An off-line to on-line converter combines the optimized inverse amplitude filter, the optimized inverse phase filter and exemplary complex data to produce the predistorted complex data utilized by the on-line adaptive predistorter for generating the predistorted complex data signals.
REFERENCES:
patent: 4291277 (1981-09-01), Davis et al.
patent: 4412337 (1983-10-01), Bickley et al.
patent: 4462001 (1984-07-01), Girard
patent: 4554514 (1985-11-01), Whartenby et al.
patent: 4700151 (1987-10-01), Nagata
patent: 4967164 (1990-10-01), Sari
patent: 5049832 (1991-09-01), Cavers
patent: 5107520 (1992-04-01), Karam et al.
patent: 5113414 (1992-05-01), Karam et al.
patent: 5148448 (1992-09-01), Karam et al.
patent: 5699383 (1997-12-01), Ichiyoshi
Moura José M. F.
Stonick John T.
Stonick Virginia L.
Nguyen Khanh Van
Pascal Robert
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