Research on the Latest Maneuver Moment of Aircraft and the Minimum Safety Distance between Aircrafts in Free Flight

Abstract:

In order to guarantee the safety of flight in free flight environment, the minimum safety distance is needed to study. Considering the response delay of pilots and the lead time prior to initiating a maneuver, the latest maneuver moment is proposed. The position errors, which were affected by communication, navigation and surveillance (CNS) performances, were regarded as Brownian motion along the coordinate direction respectively. Then a model for collision risk in free flight environment was established basing on the stochastic differential equations. The latest maneuver moment can be obtained using dichotomy to optimize under the given Target Level of Safety (TLS). Introducing the time margin, the minimum safety distance is calculated. Finally, the feasibility of the model is verified by example.

• Periodical: Applied Mechanics and Materials (Volume 538)
• Pages: 134-145
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.538.134
• Online since: April 2014
• Authors: Zhao Ning Zhang*, Zhen Liu, Dong Man Zhang
• Keywords: Air Traffic, Free Flight, Latest Maneuver Moment, Minimum Safety Distance, Target Level of Safety, Time Margin

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