METHOD AND APPARATUS FOR USING PRE-DISTORTION AND FEEDBACK TO MITIGATE NONLINEARITY OF CIRCUITS

摘要

pre-distortion and feedback quantum technology to mitigate the nonlinearity of the circuit, having all will be explained. At least one circuit device (for example, up-converter, a power amplifier, etc.), pre-distortion circuit, and may include a feedback circuit. May be a circuit (s) and generate an output signal having a distortion component due to the non-linearity. Receiving a pre-distortion circuit includes an input signal, and may generate a pre-distorted signal based on the at least one coefficient determined by the nonlinearity of the circuit (s). May determine the coefficient (s) is adaptively based on a pre-distortion circuit is the input signal and the error signal. The feedback circuit may generate an error signal based on an input signal and output signal, may obtain the error signal filtered by filtering the error signal. Circuit (s) may generate an output signal by processing the pre-distortion signal and the filtered error signal, the output signal may have a distortion component due to the pre-distortion and feedback attenuation.