Low sampling rate adaptation scheme for dual band linearization

摘要

A method and system for determining adaptation parameters for pre distorters in a multi band power amplifier system of a communication system are disclosed. A method includes receiving at an adaptor a reference signal comprising a first plurality of signals having substantially overlapping frequency spectra. Each of the first plurality of signals is input to a corresponding one of a plurality of pre distorters. The adaptor also receives an observation signal comprising a second plurality of signals tuned to substantially a same frequency to have overlapping frequency spectra. Each of the second plurality of signals is derived from an output of the multi band power amplifier system. The adaptor computes the adaptation parameters based on the reference signal and the observation signal.