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Volume 8
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10.3390/drones8030086
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Article

Collision Avoidance Capabilities in High-Density Airspace Using the Universal Access Transceiver ADS-B Messages

by
Coulton Karch
1,
Jonathan Barrett
1,
Jaron Ellingson
2,
Cameron K. Peterson
1,* and
V. Michael Contarino
3
1
Electrical and Computer Engineering Department, Brigham Young University, Provo, UT 84602, USA
2
Mechanical Engineering Department, Brigham Young University, Provo, UT 84602, USA
3
R Cubed Engineering, Chief Technology Officer, Palmetto, FL 34221, USA
*
Author to whom correspondence should be addressed.
Drones 2024, 8(3), 86; https://doi.org/10.3390/drones8030086
Submission received: 4 January 2024 / Revised: 21 February 2024 / Accepted: 26 February 2024 / Published: 1 March 2024
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Abstract

The safe integration of a large number of unmanned aircraft systems (UASs) into the National Airspace System (NAS) is essential for advanced air mobility. This requires reliable air-to-air transmission systems and robust collision avoidance algorithms. Automatic Dependent Surveillance-Broadcast (ADS-B) is a potential solution for a dependable air-to-air messaging system, but its reliability when stressed with hundreds to thousands of vehicles operating simultaneously is in question. This paper presents an ADS-B model and analyzes the capabilities of the Universal Access Transceiver (UAT), which operates at a frequency of 978 MHz. We use a probabilistic collision avoidance algorithm to examine the impact of varying parameters, including the number of vehicles and the transmission power of the UAT, on the overall safety of the vehicles. Additionally, we investigate the root causes of co-channel interference, proposing enhancements for safe operations in environments with a high density of UAS. Simulation results show message success and collision rates. With our proposed enhancements, UAT ADS-B can provide a decentralized air traffic system that operates safely in high-density situations.
Keywords: ADS-B; National Air Space; unmanned air systems; detect and avoid; universal access transceiver; air-to-air ADS-B; National Air Space; unmanned air systems; detect and avoid; universal access transceiver; air-to-air

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MDPI and ACS Style

Karch, C.; Barrett, J.; Ellingson, J.; Peterson, C.K.; Contarino, V.M. Collision Avoidance Capabilities in High-Density Airspace Using the Universal Access Transceiver ADS-B Messages. Drones 2024, 8, 86. https://doi.org/10.3390/drones8030086

AMA Style

Karch C, Barrett J, Ellingson J, Peterson CK, Contarino VM. Collision Avoidance Capabilities in High-Density Airspace Using the Universal Access Transceiver ADS-B Messages. Drones. 2024; 8(3):86. https://doi.org/10.3390/drones8030086

Chicago/Turabian Style

Karch, Coulton, Jonathan Barrett, Jaron Ellingson, Cameron K. Peterson, and V. Michael Contarino. 2024. "Collision Avoidance Capabilities in High-Density Airspace Using the Universal Access Transceiver ADS-B Messages" Drones 8, no. 3: 86. https://doi.org/10.3390/drones8030086

APA Style

Karch, C., Barrett, J., Ellingson, J., Peterson, C. K., & Contarino, V. M. (2024). Collision Avoidance Capabilities in High-Density Airspace Using the Universal Access Transceiver ADS-B Messages. Drones, 8(3), 86. https://doi.org/10.3390/drones8030086

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