A PEAK-TO-AVERAGE POWER RATIO MODIFIER

摘要

A method for processing an input signal having an input peak-to-average (PAR) so as to generate an output signal having an output PAR and a permitted spectral mask. The method includes generating a difference signal proportional to an amount by which the input signal exceeds a predetermined threshold, and filtering the difference signal with a filter (34) having a spectral response that is determined responsively to the permitted spectral mask. The filtered difference signal is subtracted from the input signal to generate the output signal so that the output PAR is adjusted relative to the input PAR. Typically, the output PAR is reduced relative to the input PAR.