DocumentCode :
583292
Title :
Simultaneous state and disturbance estimation for seeker system using sliding modes
Author :
Tamhane, Bhagyashri ; Kurode, Shailaja ; Parkhi, Prasad ; Dharmveer
Author_Institution :
Dept. of Electr. Eng., Coll. of Eng., Pune, India
fYear :
2012
fDate :
17-21 Oct. 2012
Firstpage :
1358
Lastpage :
1363
Abstract :
In this paper simultaneous estimation of states and disturbance for seeker system of a missile using sliding mode observer (SMO) has been proposed. The modeling of the plant is done by classical method and the complete seeker system has been simulated for generation of spiral scan loop with control input provided by a simple state feedback controller. An extended state observer using sliding modes is designed to estimate the system states and the total lumped disturbances acting on the system. The estimated disturbance takes into account the disturbance due to cross coupling in the gimbal system and externally added sinusoidal disturbance in input channel. Simulations verify that the output estimation error is made zero in finite time due to sliding modes and the estimated disturbance is in close agreement with actual disturbance.
Keywords :
military systems; missiles; observers; state feedback; SMO; cross coupling; extended state observer; gimbal system; input channel; lumped disturbance estimation; missile seeker system; output estimation error; sinusoidal disturbance; sliding mode observer; spiral scan loop; state estimation; state feedback controller; Channel estimation; DC motors; Missiles; Observers; Torque; Vectors; SMO; disturbance estimation; seeker system;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control, Automation and Systems (ICCAS), 2012 12th International Conference on
Conference_Location :
JeJu Island
Print_ISBN :
978-1-4673-2247-8
Type :
conf
Filename :
6393047
Link To Document :
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