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Practical Aspects of Real-Time Modeling for the Learn-To-Fly Concept.
| 题名： | Practical Aspects of Real-Time Modeling for the Learn-To-Fly Concept. |
| 作者： | Morelli, E. A. |
| 关键词： | Accelerometers, Aerodynamic characteristics, Dynamic pressure, Flight tests, Real time operation, Tail assemblies, Trailing edges, Wings, Aerodynamic interference, Airborne/spaceborne computers, Algorithms, Angle of attack, Autonomy, Center of gravity, Computational fluid dynamics, Control surfaces |
| 摘要： | Practical aspects of autonomous onboard real-time modeling for the NASA Learn-to-Fly concept are examined using flight data from two subscale test aircraft. A practical real-time global nonlinear aerodynamic modeling method is developed and explained, along with the multiple-input excitation needed for effective real-time modeling. Critical issues for integrating real-time global nonlinear aerodynamic modeling and local linear modeling with the real-time learning adaptive control and guidance elements of the Learn-to-Fly algorithm are identified and discussed. Real-time modeling results from NASA Learn-to-Fly flight demonstrations are presented and evaluated using model fit metrics and prediction tests. |
| 报告类型： | 科技报告 |
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