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原文传递 Flight Testing of In-Time Safety Assurance Technologies for UAS Operations.

题名：	Flight Testing of In-Time Safety Assurance Technologies for UAS Operations.
作者：	Young, S. D; Ancel, E; Dill, E; Moore, A; Quach, C; Smalling, K; Ellis, K.
摘要：	Ongoing research at NASA is driven by a strategic plan defined by the AeronauticsResearch Mission Directorate and a vision for future In-Time Aviation Safety ManagementSystems (IASMS) as described by the National Academies. In both visions, system safetyawareness and provision are expanded through increased access to relevant data; integratedanalysis and predictive capabilities; improved real-time detection and alerting of domain-specific hazards; decision support, and in some cases, automated risk mitigation strategies.One primary research focus is to develop means by which more timely (i.e., “in-time”) actionsmay be taken to mitigate precursors, anomalies, or trends that are observed duringoperations. In this paper, we describe such means as a collection of Services, Functions, andCapabilities (SFCs) that are supported by an underlying information system. For example, anintegrated risk assessment capability is envisioned that continuously monitors safety-relatedmetrics and margins and recommends timely operational changes. Assessment functionsand/or services can be based on data analytics and predictive models derived fromheterogeneous data sets that span relevant indicator metrics and their time histories. Likewise,on-board functions can identify and reduce susceptibility to precursor conditions that haveled (and can lead) to aircraft loss-of-control or out-of-control accidents. This papersummarizes development and testing of such an information system tailored to hazardsanticipated for future highly autonomous flight missions near and over densely populatedareas. Testing is accomplished via simulation and by using small, unmanned aircraft operatingover a test range at NASA’s Langley Research Center. Flight plans and test scenarios aredefined to emulate several use-cases, including package delivery; reconnaissance; firemanagement; and urban air taxi vertiport operations. Two test phases are summarized withPhase 1 occurring in (2019-2020) and Phase 2 ongoing (2021-present). Results focus on SFCperformance, technology readiness level assessment, and requirements discovery/validation.Companion papers are cited throughout for additional details on the recent testing.
总页数：	20 pages