Reconfigurable Antenna Control Unit for Accurate Positioning in Mobile Earth Station Systems

Abstract

Accurate positioning of antennas and faster responses in antenna positioning are one of the design requirements for ACUs in MESs. With most of the MES performing multiple and parallel tasks for antenna movement, tracking and information gathering, the onboard processor need to be fast, powerful and consume low power. In this paper, three different architectures are proposed, designed and implemented for PID controller on FPGA platform. The designed PID controllers operate at frequencies great than 200 MHz consuming power less than 1 W and are reconfigurable. The distributive arithmetic based controller with multipliers logic occupies less than 2% of FPGA memory.