Research of compressed sensing for predistortion with relatively low sampling frequency

Abstract

In order to improve the TWTA digital predistortion linearizer with relatively low sampling frequency, the LUT and indirect learning architecture were used, which was cumbersome. A digital predistortion linearizer with compressed sensing technology was presented, which can provide good linearity improvement with simple and stable way.

Keywords

• compressed sensing;nonlinear distortion;low sampling frequency;base-band predistortion