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Acta Aeronautica et Astronautica Sinica ›› 2025, Vol. 46 ›› Issue (11): 531331.doi: 10.7527/S1000-6893.2025.31331

• Reviews • Previous Articles    

Air traffic management technologies for digital low-altitude integrated operations

Fan PU, Zhijie CHEN, Yang LIU, Xin GENG, Yongwen ZHU(), Kejin REN   

  1. State Key Laboratory of Air Traffic Management System,Beijing 100089,China
  • Received:2024-09-30 Revised:2024-10-21 Accepted:2025-04-16 Online:2025-05-14 Published:2025-05-06
  • Contact: Yongwen ZHU E-mail:tianyiliang_zyw@163.com
  • Supported by:
    Youth Talent Support Program(2022-JCJQ-QT-021)

Abstract:

As aircraft technology matures and economic demand surges, the characteristics of low-altitude flight-such as heterogeneous manned and unmanned ​integrated operations, high-density integration, and autonomous operation-are becoming more prominent, posing significant challenges to low-altitude Air Traffic Control (ATC). Digital low-altitude airspace reconstructs the physical flight airspace in the information space, forming a foundational digital low-altitude framework. This transforms the traditional object-oriented airspace management model into a computation and optimization problem focused on airspace resources, and leverages the invariance of airspace, thereby reducing the complexity of managing large-scale heterogeneous objects. On this basis, it is necessary to establish a complete technical system, from the infrastructure for information acquisition and processing to the business logic of coordinated control of human, machine, and domain traffic behaviors, to support the safe and efficient ​digital control of low-altitude airspace. This paper first reviews the digital development trends of low-altitude air traffic control. It then introduces the core data information infrastructure for ​digital low-altitude​ air traffic control. Based on the digital airspace framework, this paper further discusses the key technical challenges of integrated operations, and proposes feasible technical paths for constructing a safe and efficient digital low-altitude integrated operation technical system, to realize automatic aircraft detection and avoidance as well as support ATC decision. Finally, it offers development suggestions for digital control​ of low-altitude air traffic, providing a reference for the future upgrade of digital low-altitude air traffic management capabilities and the development of related disciplines, aiming to ensure safe and orderly integrated operations and promote the healthy development of the low-altitude economy.

Key words: digital low-altitude, integrated operation, detect and avoid, digital control, air traffic control decision

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