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An EKF Based Generalized Estimation Approach for Evasive Targets

Dwivedi , PN and Bhale , PG and Bhattacharya, A and Padhi, R (2013) An EKF Based Generalized Estimation Approach for Evasive Targets. In: 19th IFAC Symposium on Automatic Control in Aerospace, September 2.-6, 2013, Wuerzburg, Germany.

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Official URL: http://dx.doi.org/10.3182/20130902-5-DE-2040.00072


A generalized approach is presented in this paper for accurately estimating the states of the targets, which can either be non-maneuvering or undergoing various maneuvers, including the most evasive ‘barrel roll maneuver'. A nine state Extended Kalman filter (EKF) formulation is presented here with three relative positions, three relative velocities, barrel frequency of aircraft, axial acceleration and maneuvering coefficient. A significant advantage of present model is that it is quite generic in nature and can capture barrel roll as well as other maneuvers (including no maneuver) without any change of estimation formulation or tuning parameters. Extensive simulation studies with a predictive guidance shows that the new estimation formulation can lead to very good engagement performance with noisy RF seeker measurement parameters, namely gimbal angles, gimbal angle rates, range and range rate.

Item Type: Conference Paper
Publisher: Elsevier Ltd
Additional Information: Copy right for this article belongs to the Elsevier Ltd
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 25 Aug 2016 10:05
Last Modified: 25 Aug 2016 10:05
URI: http://eprints.iisc.ac.in/id/eprint/54600

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