Angular velocity and torque estimation from vector measurements. Issue 1 (July 2017)

• Record Type: Journal Article
• Authors: Magnis, Lionel; Petit, Nicolas
• Is Part Of: IFAC-PapersOnLine. Volume 50:Issue 1(2017)
• Page Start: 9000
• Page End: 9007
• Publication Date: 2017-07
• Subjects: Inertial sensors -- angular velocity -- nonlinear observer -- state observers -- satellite control applications -- torques estimation -- linear damping estimation; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2017.08.1579
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: We propose a technique for estimating the angular velocity of a rigid body and the torque applied to it, from vector measurements. Unlike the approaches reported in the literature, the method does not use attitude information or rate gyros as input data. Instead, vector measurements are directly filtered through a nonlinear observer. Convergence is proven. Simulation results illustrate the potential of the method for various aerospace applications, including estimation of reorientation torques for satellites, estimation of sublimation torques on an asteroid, estimation of eddy current damping torques on space debris.