Telecommunications – Transmitter and receiver at separate stations – Distortion – noise – or other interference prevention,...
Patent
1998-03-31
2000-12-12
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
Distortion, noise, or other interference prevention,...
455 673, 455114, 455115, H04B 104
Patent
active
06160996&
ABSTRACT:
A method for linearizing amplifiers by measuring the intermodulation products at the output of the linearized amplifier using minimum additional hardware without the performance problems associated with pilot tones. In one embodiment, the amplifiers are adaptively linearized using performance monitoring radios. Specifically, the performance monitoring radios are used to measure the signal levels of the intermodulation products in unused communication channels. Such measurements are then used to adaptively linearize the amplifiers and reduce the levels of intermodulation products.
REFERENCES:
patent: 4879519 (1989-11-01), Myer
patent: 5023565 (1991-06-01), Lieu
patent: 5524285 (1996-06-01), Wray et al.
patent: 5877653 (1999-03-01), Kim et al.
Blodgett James Russell
Goodwin Michael W.
Simpson Harold Allan
Ward Robert Brian
Eisenzopf Reinhard J.
Kincaid Lester G
Lucent Technologies - Inc.
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