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Composite guidance for impact angle control against higher speed targets
, D. Ghose, S. Raha
Published in American Institute of Aeronautics and Astronautics Inc.
2016
Volume: 39
   
Issue: 1
Pages: 98 - 117
Abstract
In the literature, the impact angle control problem has been addressed mostly against lower speed or stationary targets. However, in the current defense scenario, targets of much higher speeds than interceptors are a reality. Moreover, approaching a higher speed target from a specified angle is important for effective seeker acquisition and enhanced warhead effectiveness. This paper proposes a composite proportional navigation guidance law using a combination of the standard proportional navigation and the recently proposed retroproportional navigation guidance laws for intercepting higher speed nonmaneuvering targets at specified impact angles in three-dimensional engagements. An analysis of the set of achievable impact angles by the composite proportional navigation guidance law is presented. It is shown that there exists an impulse bias that, when added to the composite proportional navigation guidance command, expands this set further by reversing the direction of the line-of-sight angular rotation vector. A bound on the magnitude of the bias is also derived. Finally, an implementation of this impulse bias, in the form of a series of pulses, is proposed and analyzed. Simulation results are also presented to support the analysis. © Copyright 2015 by the American Institute of Aeronautics and Astronautics.
About the journal
JournalData powered by TypesetJournal of Guidance, Control, and Dynamics
PublisherData powered by TypesetAmerican Institute of Aeronautics and Astronautics Inc.
ISSN07315090
Impact Factor1.868
Citation Styleunsrt
Sherpa RoMEO Archiving PolicyGreen