Journal
JOURNAL OF GUIDANCE CONTROL AND DYNAMICS
Volume 34, Issue 2, Pages 522-532Publisher
AMER INST AERONAUT ASTRONAUT
DOI: 10.2514/1.50572
Keywords
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Funding
- U.S. Air Force Office of Scientific Research, Air Force Material Command [FA8655-09-1-3051]
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A three-body interception scenario is considered, where an aircraft launches a defending missile as a counterweapon against an incoming, attacking missile. Line-of-sight guidance is investigated as a prospective strategy for the defender missile, with the aircraft being the moving launch platform. Kinematic results on line-of-sight guidance with a moving/maneuvering platform are derived, showing defender-attacker interception for all attack geometries and attacker maneuvers. The speed and maximum terminal acceleration requirements are shown to be considerably lower when compared with a proportional navigation guided defender missile. It is also shown that the attacker pays maximum penalty for an evasive maneuver from the defender if the defender uses line-of-sight guidance. A cooperative guidance law is proposed for the aircraft to maximize the attacker-to-defender lateral acceleration ratio. Simulations are carried out for various attack geometries, with and without the cooperative strategy, showing better relative control effort performance for the former.
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