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Biased PN based impact angle constrained guidance using a nonlinear engagement model

Akhil, G and Ghose, Debasish (2012) Biased PN based impact angle constrained guidance using a nonlinear engagement model. In: 2012 American Control Conference, 27-29 June 2012, Montreal, QC.

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Impact angle constrained guidance laws are important in many applications such as guidance of torpedoes, anti-ballistic missiles and reentry vehicles. In this paper, we design a guidance law which is capable of achieving a wide range of impact angles. Biased proportional navigation guidance uses a bias term in addition to the basic PN command to satisfy additional constraints. Angle constrained BPNG (ACBPNG) uses small angle approximations to derive the bias term for impact angle requirement. We design a modified ACBPNG (MACBPNG) where the required bias term is derived in a closed form considering non-linear equations of motion. Simulations are carried out for a wide range of impact angle requirements. We also analyze capturability from different initial positions and also the launch angles possible at each initial position. The performance of the proposed law is compared with an existing law.

Item Type: Conference Paper
Publisher: IEEE
Additional Information: Copyright of this article belongs to IEEE.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 24 Feb 2014 07:57
Last Modified: 24 Feb 2014 07:57
URI: http://eprints.iisc.ac.in/id/eprint/48449

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