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Route optimization model for strike aircraft

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Author
Lee, Steve H. K.
Date
1995-09
Advisor
Wood, R.K.
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Abstract
A model is designed and implemented to construct a 'flyable,' least- risk route for strike aircraft from takeoff to target, through enemy radars, in a defined area of operations. A network is fust constructed by discretizing the airspace into a three-dimensional grid of nodes and then connecting adjacent nodes with arcs. A shortest-path model in this network is then constructed with arc lengths that are a function of the probability of detection by radars monitoring the area of operations. A side constraint on fuel consumption ensures that routes are feasible. Lagrangian relaxation is used to incorporate this constraint into the problem and a shortest-path algorithm solves a sequence of shortest-path sub-problems to obtain a near-optimal route. AROMA (Automatic Route Optimization Model for Aircraft) is implemented in C++ on a Silicon Graphics Onyx computer with 192 megabytes of memory. Test problems comprising 240,000 nodes and more than 2 million arcs are used to evaluate the model. Realistic routes are generated in approximately 2 to 3 minutes. A graphical interface displays the routes and facilitates interactive analysis and model evaluation.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
URI
http://hdl.handle.net/10945/35160
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