Relative motion guidance, navigation and control for autonomous orbital rendezvous

Okasha, Mohamed Elsayed Aly Abd Elaziz and Newman, Brett (2011) Relative motion guidance, navigation and control for autonomous orbital rendezvous. In: AIAA Guidance, Navigation, and Control Conference, 8-11 August 2011, Portland, Oregon.

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Abstract

In this paper, the dynamics of the relative motion problem in a perturbed orbital environment are exploited based on Gauss’ variational equations. The relative coordinate frame (Hill frame) is studied to describe the relative motion. A linear high fidelity model is developed to describe the relative motion. This model takes into account primary gravitational and atmospheric drag perturbations. In addition, this model is used in the design of a control, guidance, and navigation system of a chaser vehicle to approach towards and to depart from a target vehicle in proximity operations. Relative navigation uses an extended Kalman filter based on this relative model to estimate the relative position and velocity of the chaser vehicle with respect to the target vehicle and the chaser attitude and gyros biases. This filter uses the range and angle measurements of the target relative to the chaser from a simulated LIDAR system along with the star tracker and gyro measurements of the chaser. The corresponding measurement models, process noise matrix and other filter parameters are provided. Numerical simulations are performed to assess the precision of this model with respect to the full nonlinear model. The analyses include the navigations errors, trajectory dispersions, and attitude dispersions.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	6908/38705
Uncontrolled Keywords:	High fidelity models; Orbital environments; Orbital rendezvous; Proximity operations; Relative coordinates; Relative navigation; Relative positions; Variational equations
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA329 Engineering mathematics. Engineering analysis T Technology > TA Engineering (General). Civil engineering (General) > TA349 Mechanics of engineering. Applied mechanics T Technology > TJ Mechanical engineering and machinery > TJ212 Control engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Dr Mohamed Okasha
Date Deposited:	14 Oct 2014 16:16
Last Modified:	14 Oct 2014 16:16
URI:	http://irep.iium.edu.my/id/eprint/38705

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