Title of article :
Near optimal guidance law for descent to a point using inverse problem approach
Author/Authors :
Naghash، نويسنده , , Abolghasem and Esmaelzadeh، نويسنده , , Reza and Mortazavi، نويسنده , , Mehdi and Jamilnia، نويسنده , , Reza، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
7
From page :
241
To page :
247
Abstract :
An explicit guidance law that maximizes terminal velocity is developed for a reentry vehicle to a fixed target. Motion is constrained to an optimal, three-dimensional Bezier curve. Acceleration commands are derived by solving an inverse problem related to Bezier parameters. An optimal Bezier curve is determined by solving a real-coded genetic algorithm. For online trajectory generation, optimal trajectory is approximated by fixing the second control point of the Bezier curve. The approximated trajectory is compared with the pure proportional navigation, genetic algorithm and direct transcriptionʹs solutions. The near optimal terminal velocity solution compares very well with these solutions. The approach robustness is examined by Monte Carlo simulation.
Keywords :
Explicit guidance , Optimal guidance , genetic algorithm , Bezier curve , Reentry
Journal title :
Aerospace Science and Technology
Serial Year :
2008
Journal title :
Aerospace Science and Technology
Record number :
2229750
Link To Document :
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