MATLAB Simulation of a Fuzzy Controller for Attitude Control of a Geostationary Satellite

摘要

The Geostationary satellite undergoes drift in its position due to variety of forces acting on it. These forces are additive in nature. Since satellite communication is highly line of sight communication, attitude (drift in its position) has to be controlled. For this it is necessary to determine the exact position of the satellite from time to time. Once the satellite position is determined, appropriate correction can be applied by suitable attitude control system. Various techniques exist for attitude control of a satellite. Conventional techniques like proportional, Bang-Bang controllers etc are in use. New research work in fuzzy theory shows that fuzzy controllers can provide faster control over traditional ones. In this paper, fuzzy controller is designed using MATLAB. Simulink model interfaced with MATLAB shows relatively much better results over traditional controllers for on board simulation.