2017 18th International Radar Symposium (IRS) 2017
DOI: 10.23919/irs.2017.8008156
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An innovative nonlinear filter for radar kinematic estimation of maneuvering targets in 2D

Abstract: In this paper we consider the problem of tracking a target in a 2D space whose model is based on a constant velocity assumption (up to a process noise) in the Frenet-Serret frame (or intrinsic coordinates). This model is particularly suited to straight lines and coordinated turn motions. Then, we adapt the Invariant Extended Kalman Filter (I-EKF), as in [1], a novel variant of the EKF on Lie groups, to suit this dynamical model. Numerical experiments inspired by real fighter trajectories confirm the validity o… Show more

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Cited by 4 publications
(6 citation statements)
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“…Its motion is described by piecewise constant control commands in a frame that is attached to the aircraft. The idea of expressing the state of the target in a frame attached to it is now a common idea, see [27], [20,7], see also [28] for robotics applications. For the radar application, and to take into account 3D motions, but accounting for the fact that rotations of the target on itself are unobservable, the Frenet-Serret frame seems most appropriate.…”
Section: D Target Model In Intrinsic Coordinatesmentioning
confidence: 99%
“…Its motion is described by piecewise constant control commands in a frame that is attached to the aircraft. The idea of expressing the state of the target in a frame attached to it is now a common idea, see [27], [20,7], see also [28] for robotics applications. For the radar application, and to take into account 3D motions, but accounting for the fact that rotations of the target on itself are unobservable, the Frenet-Serret frame seems most appropriate.…”
Section: D Target Model In Intrinsic Coordinatesmentioning
confidence: 99%
“…We thus need to use a 2D model to derive the evolution equation of the drone. They are presented in [9] for instance, and they read:…”
Section: Kinematic Modelmentioning
confidence: 99%
“…We apply to this model the methodology of the IEKF, as explained in [1] and [10] for instance. The method for the particular model (1) is also developed in [9].…”
Section: Invariant Extended Kalman Filter Equationsmentioning
confidence: 99%
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