Integrated attitude determination and control system via magnetic measurements and actuation only

Mohammad Abdel Rahman, Mohammad Ibraheem and Sang-Young, Park (2009) Integrated attitude determination and control system via magnetic measurements and actuation only. In: Proceedings of the 11th WSEAS International Conference on Automatic Control, Modelling and Simulation (ACMOS 2009), 30th May - 1st Jun 2009, Instanbul, Turkey.

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Abstract

A nonlinear control scheme using a Modified State–Dependent Riccati Equation MSDRE has been developed through a pseudo-linearization of spacecraft augmented dynamics and kinematics. The full-state knowledge, required for the control loop is provided through a generalized algorithm for spacecraft three-axis attitude and rate estimation based on the utilization of magnetometer measurements and their time derivatives, while the control torque is generated via magnetorquers. The resulted attitude determination and control system has shown the capability of estimating the attitude better than 5 deg and rate of order 0.03 deg/sec in addition to maintain the pointing accuracy within 5 deg in each axis with pointing stability of less than 0.05 deg/sec.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	6540/14945
Uncontrolled Keywords:	Attitude Control, Attitude Estimation, Magnetometer, Magnetorquers, Modified Riccati Equation, Nonlinear Control.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering
Depositing User:	Dr. Mohammad Abdelrahman
Date Deposited:	01 Jul 2013 15:08
Last Modified:	01 Jul 2013 15:08
URI:	http://irep.iium.edu.my/id/eprint/14945

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