Acquisition System For Adaptation Of Digital Predistorter To Linearize Amplifiers Using Comparator

Abstract

This paper presents a design of an acquisition system for adaptation of a digital perdistorter implementing a comparator in the feedback path. The key parts of an acquisition chain are verified by simulations and suitable components are chosen for high-speed performance. Subsequently, a printed circuit board is designed, manufactured and prepared for further testing. Finally, an appropriate firmware is developed to evaluate the proposed hardware and to acquire data for digital predistorter adaptation.