James Russell Blodgett - Derry NH Michael W. Goodwin - North Andover MA Harold Allan Simpson - Andover MA Robert Brian Ward - Auburn NH
Assignee:
Lucent Technologies Inc. - Murray Hill NJ
International Classification:
H04B 104
US Classification:
455 63
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.