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Proceedings Paper

Constrained orbital intercept-evasion
Author(s): Aleksandar Zatezalo; Dusan M. Stipanovic; Raman K. Mehra; Khanh Pham
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Paper Abstract

An effective characterization of intercept-evasion confrontations in various space environments and a derivation of corresponding solutions considering a variety of real-world constraints are daunting theoretical and practical challenges. Current and future space-based platforms have to simultaneously operate as components of satellite formations and/or systems and at the same time, have a capability to evade potential collisions with other maneuver constrained space objects. In this article, we formulate and numerically approximate solutions of a Low Earth Orbit (LEO) intercept-maneuver problem in terms of game-theoretic capture-evasion guaranteed strategies. The space intercept-evasion approach is based on Liapunov methodology that has been successfully implemented in a number of air and ground based multi-player multi-goal game/control applications. The corresponding numerical algorithms are derived using computationally efficient and orbital propagator independent methods that are previously developed for Space Situational Awareness (SSA). This game theoretical but at the same time robust and practical approach is demonstrated on a realistic LEO scenario using existing Two Line Element (TLE) sets and Simplified General Perturbation-4 (SGP-4) propagator.

Paper Details

Date Published: 3 June 2014
PDF: 12 pages
Proc. SPIE 9085, Sensors and Systems for Space Applications VII, 90850E (3 June 2014); doi: 10.1117/12.2050678
Show Author Affiliations
Aleksandar Zatezalo, Scientific Systems Co., Inc. (United States)
Dusan M. Stipanovic, Univ. of Illinois at Urbana-Champaign (United States)
Raman K. Mehra, Scientific Systems Co., Inc. (United States)
Khanh Pham, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 9085:
Sensors and Systems for Space Applications VII
Khanh D. Pham; Joseph L. Cox, Editor(s)

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