Transmitter signal transmission method, system and storage medium

Abstract

This invention relates to the field of radio transmission technology, specifically to a signal transmission method, system, and storage medium for a transmitter. It includes: acquiring the original transmission signal to be transmitted and filtering the original transmission signal to obtain the transmission signal to be input to a power amplifier; and dividing the transmission signal into blocks according to a preset signal length. This invention, through local sparsity analysis and oversampling rate detection of the signal sub-blocks, can locate signal peaks in the time domain, identify peak regions to be compressed, and perform nonlinear amplitude-phase joint mapping compression on the peak regions using a polarization constraint matrix. This nonlinear amplitude-phase joint correction path allows the signal energy to be redistributed without damaging the sideband spectral characteristics, avoiding the problem of increased dynamic range of the power amplifier input signal due to over-compression. This application enables the power amplifier in the transmitter to operate in a lower back-off region, improving the conversion efficiency of the power amplifier.

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