Estimation of States of Seeker System of a Missile using Sliding Mode Observer and Kalman filter approaches - A Comparative Study

摘要

This paper presents a comprehensive comparison of estimation of states for seeker system of a missile using Sliding Mode Observer and Kalman filter approaches. This estimation accounts for the angular position and displacement rates of the seeker pitch and yaw gimbals. These seeker body rates are required to estimate the line of sight (LOS) rate to determine target position. Both estimation approaches are simulated and a comparative analysis is presented. The peculiar advantages of the two methodologies; i.e. parametric robustness of SMO and noise damping of Kalman filter, have been validated in simulation.