Defining Well Clear Separation for Unmanned Aircraft Systems Operating with Non-Cooperative Aircraft

Chen, Christine C ; Gill, Bilal ; Edwards, W M ; Smearcheck, Samantha ; Adami, Tony ; Calhoun, Sean ; Wu, M Gilbert ; Cone, Andrew C ; Lee, Seungman

关键词: ACTUATORS;    AERIAL RECONNAISSANCE;    AIR TRAFFIC CONTROL;    COLLISION AVOIDANCE;    COLLISION RATES;    DETECT AND AVOID;    INTEROPERABILITY;    NATIONAL AIRSPACE SYSTEM;    PILOTLESS AIRCRAFT;    RISK ASSESSMENT;    SAFETY FACTORS;    TRANSPONDERS;    UNMANNED AIRCRAFT SYSTEMS;    WARNING SYSTEMS;   

RP-ID  :  ARC-E-DAA-TN69428

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Detect-and-Avoid (DAA) systems are essential to the safe operations of Unmanned Aircraft Systems, and have the objectives of mitigating collisions with and remaining Well Clear of manned aircraft. This paper analyzes four candidate DAA Well Clear definitions for non-cooperative aircraft using mitigated performance metrics of DAA systems. These DAA Well Clear definitions were proposed in previous work based on their unmitigated collision risk and maneuver initiation range. In this work they are evaluated using safety and operational suitability metrics computed from a large number of representative encounters. Results suggest that although the four candidate DAA Well Clear definitions provide comparable safety, the alerting characteristics give preference for the DAA Well Clear definition without a temporal parameter.