Abstract : In this paper we propose an invariant nonlinear observer (i.e. a “filter”) for estimating the velocity vector and orientation of a flying rigid body, using measurements from low-cost Earth-fixed velocity, inertial and magnetic sensors. It has a nice geometric structure which respects meaningful physical symmetries of the system. It can be seen as an easier-to-tune and computationally much simpler alternative to an Extended Kalman Filter.
https://hal-mines-paristech.archives-ouvertes.fr/hal-00495953
Contributor : François Chaplais <>
Submitted on : Tuesday, June 29, 2010 - 11:35:41 AM Last modification on : Thursday, September 24, 2020 - 5:04:18 PM
Philippe Martin, Erwan Salaün. An Invariant Observer for Earth-Velocity-Aided Attitude Heading Reference Systems. 17th World Congress The International Federation of Automatic Control, Jul 2008, Seoul, South Korea. pp.9857-9864. ⟨hal-00495953⟩