Decomposed piecewise memory polynomial predistortion for nonlinear power amplifier

Among various methods of the linearization of power amplifiers (PA´s) included in communication channels, the method based on the digital predistortion provides a high accuracy at a wide bandwidth. Represented the decomposed piecewise memory polynomial model of the digital predistorter (DPD) promotes its performance, namely, the raise of PA linearization accuracy and the simplicity of predistorter implementation. Polynomial models of the adaptive predistorter were designed for Wiener-Hammerstein model of power amplifier. A comparative analysis of the synthesized models of digital predistorter are represented.