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Meeting	ACGS Committee Meeting 97 - Tahoe - March 2006
Agenda Location	4 GENERAL COMMITTEE TECHNICAL SESSION 4.2 Research Institutions, Industry and University Reports 4.2.2 Universities 4.2.2.1 John Hopkins APL
Title	John Hopkins APL
Presenter	Uday Shankar
Available Downloads*	presentation
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Abstract	This presentation discusses the GNC research at the Guidance, Navigation, and Control Group at the Johns Hopkins University Applied Physics Laboratory. Johns Hopkins University Applied Physics Laboratory (JHU/APL) is one of five institutions at the Johns Hopkins University. APL is a not-for-profit research organization with about 3600 employees (68% scientists and engineers). Our annual revenue is on the order of $670m. The Air and Missile Defense Department is a major department of APL involved with the defense of naval and joint forces from attacking aircraft, cruise missiles, and ballistic missiles. The major thrust of the GNC group is the guidance, navigation, and control of missiles. Our mission is to integrate sensor data, airframe and propulsion capabilities to meet mission objectives. We are involved with GNC activities in the concept stage (design, requirements analysis, algorithm development), detailed design (hardware, software), and flight test (pre-flight predictions, post-flight analysis, failure investigation). The Advanced Systems section within the GNC group is involved with several projects: boost-phase interception of ballistic missiles, discrimination-coupled guidance for midcourse intercepts, Standard Missile GNC engineering, Kill Vehicle engineering, integrated guidance control, swarm-on-swarm guidance, and rapid prototyping of GNC algorithms and hardware. We discuss two examples. The first is the swarm-on-swarm guidance. This framework can be used to solve guidance problems associated with several missile defense scenarios. The second is the application of dynamic-game guidance solutions. This has applications in terminal guidance of a boost-phase interceptor and the discrimination-coupled guidance of terminal homing of a midcourse interceptor. We discuss in more detail the problem of terminal guidance of a boost-phase interceptor. The problem is formulated and a closed-form solution is offered.