This paper describes the on-going development of a comprehensive integrated guidance and control architecture featuring an on-line aerodynamic identification scheme that produces a global estimate of a damaged vehicle's aerodynamic characteristics. This estimate is used to derive updated constraints reflecting the vehicle's degraded maneuverability that are incorporated into computationally efficient algorithms for on-line trajectory reshaping/retargeting. This paper presents recent progress on a Multiple-Model Adaptive Estimation approach to the global aerodynamic estimation process. The scheme utilizes diagnostic information assumed to be provided by a vehicle health monitor to generate a bank of aerodynamic models in which each model is created by an aerodynamic prediction code for a vehicle configuration reflecting a particular type of damage. The individual models are blended through weights that are adapted on-line using measured data.
On-Line Aerodynamic Identification for Space Access Vehicles (Preprint)
2006
16 pages
Report
No indication
English
Aerodynamics , Information Systems , Computer Hardware , Spacecraft Trajectories & Flight Mechanics , Maneuverability , Damage assessment , Aerodynamic characteristics , Online systems , Adaptive systems , Algorithms , Integrated systems , Trajectories , Guidance , Configurations , Coding , Symposia , Models , Sbir(Small business innovation research) , Sbir reports , Sbir phase 2
AIAA-2006-6561 On-Line Aerodynamic Identification for Space Access Vehicles
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