Title :
A robust horizontal LOS rate estimator for 2-axes gimballed seeker
Author :
Ra, Won-Sang ; Whang, Ick-ho
Author_Institution :
Guidance & Control Dept., Agency for Defense Dev., Taejon, South Korea
Abstract :
In this paper, a robust horizontal LOS (line-of-sight) rate estimator for sea skimming anti-ship missile is proposed. A exact LOS rate dynamics model for two-axes gimballed seeker is derived in homing geometry. A new LOS rate estimator is designed by applying a robust Kalman filter to the LOS rate dynamics model. The proposed filter takes into account roll motions and detection gain uncertainties. Simulation results show that the proposed filter performs very well and guarantees the robustness against parameter uncertainties.
Keywords :
Kalman filters; dynamics; missile guidance; navigation; parameter estimation; uncertain systems; Kalman filter; LOS rate dynamics model; gain uncertainties; homing geometry; horizontal line-of-sight rate estimator; missile guidance; sea skimming anti-ship missile; two axes gimballed seeker; uncertain system; Degradation; Low pass filters; Missiles; Riccati equations; Robust control; Robustness; Sea measurements; Solid modeling; Uncertain systems; Uncertainty;
Conference_Titel :
Decision and Control, 2002, Proceedings of the 41st IEEE Conference on
Print_ISBN :
0-7803-7516-5
DOI :
10.1109/CDC.2002.1184286
