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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 289 records · Page 16

All sources NASA NTRS DOE OSTI

NASA NTRS2015

Detect and Avoid Alerting Logic for Unmanned Systems

No abstract available

Munoz, Cesar↗

NASA NTRS2015

Unmanned Aircraft Systems (UAS) Controller Acceptability Study 3 (CAS3): Collision Avoidance, Self Separation, and Alerting Times (CASSAT): Combined PER/FER

No abstract available

Comstock, James R., Jr.↗

NASA NTRS2015

DAIDALUS: Detect & Avoid Alerting Logic for Unmanned Systems

No abstract available

Munoz, Cesar↗

NASA NTRS2018

Alert Exchange Task Force Report

No abstract available

Groen, Franciscus J.↗

NASA NTRS2019

Analysis of Interactions Between Urban Air Mobility (UAM) Operations and Conventional Traffic in Urban Areas: Traffic Alert and Collision Avoidance (TCAS) Study for UAM Operations

This paper presents a preliminary modeling and analysis of interactions between proposed UAM operations and present-day conventional traffic if UAM operations occurred along FAA- approved helicopter routes and altitude ceilings. It assesses the extent to which the UAM operations will trigger TCAS resolution advisories (RA) aboard the conventional aircraft in the Dallas/Fort Worth (DFW) terminal airspace. It is observed that under deterministic UAM operational conditions, no RAs will be triggered. Furthermore, the impact of UAM altitude uncertainty is also evaluated. It is observed that restricting the UAM cruise altitudes to 990 feet above Mean Sea Level (MSL) or below reduced the chance of triggering an RA to under five percent throughout the day, even in the presence of maximum altitude error of 30 feet.

Bulusu, Vishwanath↗

NASA NTRSDate not supplied