Time Scale Separated Nonlinear Partial Integrated Guidance and Control of Interceptors in the Terminal Phase

Padhi, Radhakant and Das, Priya G and Chawla, Charu (2009) Time Scale Separated Nonlinear Partial Integrated Guidance and Control of Interceptors in the Terminal Phase. In: IEEE International Conference on Control Applications/International Symposium on Intelligent Control, JUL 08-10, 2009, Saint Petersburg, pp. 1081-1086.

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Abstract

The paper proposes a time scale separated partial integrated guidance and control of an interceptor for engaging high speed targets in the terminal phase. In this two loop design, the outer loop is an optimal control formulation based on nonlinear model predictive spread control philosophies. It gives the commanded pitch and yaw rates whereas necessary roll-rate command is generated from a roll-stabilization loop. The inner loop tracks the outer loop commands using the dynamicinversion philosophy. However, unlike conventional designs, in both the loops the Six degree of freedom (Six-DOF) interceptor model is used directly. This intelligent manipulation preserves the inherent time scale separation property between the translational and rotational dynamics, and hence overcomes the deficiency of current IGC designs, while preserving its benefits. Six-DOF simulation studies have been carried out accounting for three dimensional engagement geometry. Different comparison studies were also conducted to measure the performance of the algorithm.

Item Type:	Conference Paper
Series.:	IEEE International Conference on Control Applications
Publisher:	IEEE
Additional Information:	Copyright 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords:	Model predictive spread control;dynamic inversion;time scale separated partial integrated guidance and control;high speed target
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	06 Aug 2010 10:22
Last Modified:	19 Sep 2010 06:13
URI:	http://eprints.iisc.ac.in/id/eprint/31049

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