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Capture Region for True Proportional Navigation Guidance with Nonzero Miss-Distance

Ghose, Debasish (1994) Capture Region for True Proportional Navigation Guidance with Nonzero Miss-Distance. In: Journal of Guidance, Control, and Dynamics, 17 (3). pp. 627-628.

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Abstract

TRUE proportional navigation (TPN) is a version of pro- portional navigation (PN) guidance law in which the missile lateral acceleration is applied perpendicular (normal) to the line of sight $(LOS)^1$ rather than to the missile velocity, as in the case of pure proportional navigation $(PPN).^2$ The TPN guidance law has been found to be analytically more tractable than the PPN guidance law. Guelman' obtained the capture region of TPN, for a nonmaneuvering target, defining capture in terms of zero miss-distance. However, guided missiles carry warheads that have a nonzero lethal radius and thus, in practical situations, it is possible to define capture in terms of an acceptable nonzero miss-distance. It is obvious that the capture region, as obtained by $Guelman,^1$ for zero miss-distance will expand further under this assumption. In a previous $paper,^3$ the capture region for TPN with nonzero miss-distance was obtained through extensive computations. In this Note we present a complete analytical solution to the problem.

Item Type: Journal Article
Additional Information: The copyright of this article belongs to American Institute of Aeronautics and Astronautics.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 30 Nov 2006
Last Modified: 27 Aug 2008 12:16
URI: http://eprints.iisc.ernet.in/id/eprint/8088

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