Polynomial-Based Pre-distortion for Wideband RF Transmitters Using Single Frequency Signal

In this paper a polynomial-based pre-distorter for RF transmitters is proposed which compensates for the static nonlinear behavior of the transmitter at the first step and once the inverse static model is found linear identification techniques are used for linear distortion. The signal under which the pre-distortion procedure is performed is a sinusoidal signal. The linear distortion of the system on a sinusoidal signal is merely phase shift and additive gain, the goal is to find the inverse model of the static nonlinear behavior of the transmitter by sending a sinusoidal wave through the dynamic nonlinear system and receiving a sinusoidal wave of the same frequency.