传递对准中载舰挠曲变形和杆臂效应一体化建模与仿真

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2009, Vol. 30 ›› Issue (11): 2172-2177.

• Avionics and Autocontrol • Previous Articles Next Articles

Incorporate Modeling and Simulation of Transfer Alignment withFlexure of Carrier and Leverarm Effect

Gao Qingwei1, Zhao Guorong2, Wang Xibin3, Wu Fang3

1.Department of Command, Naval Aeronautical and Astronautical University 2.Department of Control Engineering, Naval Aeronautical and Astronautical University 3.Graduate Students’ Brigade, Naval Aeronautical and Astronautical University

Received:2008-09-25 Revised:2008-11-17 Online:2009-11-25 Published:2009-11-25
Contact: Gao Qingwei

Abstract

Abstract:

In order to solve the nonlinear transfer alignment problem for aircraft’s inertial navigation system with large misalignment azimuth, an incorporate acceleration error model of leverarm effect is built with the flexure of a carrier, and according to the actual position of the aircraft on the carrier, a linear error model of transfer alignment for aircraft’s inertial navigation system with large misalignment azimuth is built and consummated by importing nominal aircraft body coordinate. The “velocity+angular velocity” matching method is used to estimate both the fixed misalignment and the instantaneous dynamic distortion angle. The simulation result shows that this method can estimate the fixed misalignment and the flexure angle effectively, and satisfy the precision requirements.

Key words: transfer alignment, flexure, leverarm effect, velocity matching, angular velocity matching, inertial navigation systems, initial alignment

CLC Number:

Gao Qingwei;Zhao Guorong;Wang Xibin;Wu Fang. Incorporate Modeling and Simulation of Transfer Alignment withFlexure of Carrier and Leverarm Effect[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2009, 30(11): 2172-2177.

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Incorporate Modeling and Simulation of Transfer Alignment withFlexure of Carrier and Leverarm Effect

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