Line-of-sight Estimation for Missile with Roll-Pitch Seeker
Xiao Liu, Bo Mo · 2018
In this paper, a tracking and estimation strategy is proposed to obtain the line of sight (LOS) rate of missile with roll-pitch seeker. The dynamic model of roll-pitch seeker is built to provide detailed mechanisms analysis, and proper inertial design is proposed to decrease dynamic couplings and torque disturbances. Tracking principles are then presented with consideration of missile motion disturbances and couplings among control channels. Based on the above conditions, LOS estimation model is built based on Unscented Kalman Filter (UKF). Finally, the results and performance of the LOS estimation method for roll-pitch seeker are compared with the direct LOS output of roll-pitch seeker as well as pitch-yaw seeker.