DocumentCode :
3410670
Title :
Application of LQ optimal control in the initial alignment of Strapdown Navigation System
Author :
Zhou, Guangtao ; Li, Bingjun ; Gao, Wei ; Zhang, Xin
Author_Institution :
Harbin Eng. Univ., Harbin
fYear :
2007
fDate :
5-8 Aug. 2007
Firstpage :
3167
Lastpage :
3172
Abstract :
The paper presents a approach which applies LQ optimal control in Strap-down Inertial Navigation System(SINS) initial alignment. The detailed analysis process about this method has been given, and the anti-jamming design is done for the approximate step-wise disturbance appeared in the system, and this method has been used in the initial alignment. Simulations are performed to validate the scheme for initial alignment, obtained the same precision to other alignment method. And the most splendid is that the using of the LQ optimal control reduces the alignment time consumedly, much quicker than other traditional method. What is discovered in the simulation is when the initial error angles are smaller than 10 degrees, error angles will converge to quite good precision in several seconds.
Keywords :
dynamic programming; feedback; inertial navigation; linear quadratic control; matrix algebra; LQ optimal control; SINS initial alignment; anti-jamming design; dynamic programming method; feedback control matrix; linear quadratic optimal control; step-wise disturbance; strapdown inertial navigation system; Aircraft navigation; Angular velocity; Automation; Error correction; Gyroscopes; Inertial navigation; Mechatronics; Optimal control; State-space methods; Velocity measurement; Anti-jamming; Initial alignment; LQ performance target; Optimal control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Mechatronics and Automation, 2007. ICMA 2007. International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-0828-3
Electronic_ISBN :
978-1-4244-0828-3
Type :
conf
DOI :
10.1109/ICMA.2007.4304068
Filename :
4304068
Link To Document :
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