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Federal
Trajectory Clustering and an Application to Airspace Monitoring
National Aeronautics and Space Administration —
This paper presents a framework aimed at monitoring the behavior of aircraft in a given airspace. Trajectories that constitute typical operations are determined and... -
Federal
Combining Model-Based and Feature-Driven Diagnosis Approaches – A Case Study on Electromechanical Actuators
National Aeronautics and Space Administration —
Model-based diagnosis typically uses analytical redundancy to compare predictions from a model against observations from the system being diagnosed. However this... -
Federal
Metrics for Evaluating Performance of Prognostics Techniques
National Aeronautics and Space Administration —
Prognostics is an emerging concept in condition based maintenance (CBM) of critical systems. Along with developing the fundamentals of being able to confidently...