EKF Application on Estimating Missile Guidance Signals

Martina Liberato, Emidio Pizzingrilli, Sauro Longhi

Abstract


An Extended Kalman Filter (EKF) application has been developed to estimate relative position, relative velocity, Line Of Sight (LOS), LOS rate and target acceleration in the nonlinear missile-target relative kinematics. The used measures come from a strapdown seeker and an IMU. In order to improve the guidance performance, the setting of the filter against different types of target maneuvers has been studied. In all considered scenarios the EKF yields a
remarkable improvement of miss distance values. The used approach and the filter set-up allow to include uncertainties such as misalignments, non synchronisms between sensors or seeker measures aberrations. The introduction of a supervision to adapt the setting to different identified target manoeuvres could be developed.

[DOI: 10.1685/CSC09323] About DOI

Keywords


Target tracking; Extended Kalman Filter, Line of sight rate

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DOI: http://dx.doi.org/10.1685/




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