航空学报 > 2018, Vol. 39 Issue (5): 321866-321866   doi: 10.7527/S1000-6893.2018.21866

星基ADS-B接收机监视容量分析

刘海涛, 王松林, 秦定本, 李冬霞   

  1. 中国民航大学 天津市智能信号与图像处理重点实验室, 天津 300300
  • 收稿日期:2017-11-15 修回日期:2018-01-25 出版日期:2018-05-15 发布日期:2018-01-25
  • 通讯作者: 刘海涛,E-mail:htliucauc@qq.com E-mail:htliucauc@qq.com
  • 基金资助:
    国家重点研发计划(2016YFB0502402)

Performance analysis of surveillance capacity of satellite-based ADS-B receiver

LIU Haitao, WANG Songlin, QIN Dingben, LI Dongxia   

  1. Tianjin Key Lab for Advanced Signal Processing, Civil Aviation University of China, Tianjin 300300, China
  • Received:2017-11-15 Revised:2018-01-25 Online:2018-05-15 Published:2018-01-25
  • Supported by:
    National Key Research and Development Plan(2016YFB0502402)

摘要: 星基广播式自动相关监视(ADS-B)系统是实现广域范围内航空器监视的重要技术手段。星基ADS-B系统内部存在严重的共信道干扰,共信道干扰限制了系统的监视性能。为了定量给出星基ADS-B接收机监视容量的计算方法,首先,给出了星基ADS-B系统的模型;随后,通过理论分析得到了星基ADS-B接收机报文冲突概率及报文正确接收概率,以此为基础理论,分析得出星基ADS-B接收机位置报文更新间隔及监视容量的计算方法;最后,构建了星基ADS-B仿真系统,仿真验证了理论计算公式的正确性。研究表明:星基ADS-B接收机的监视容量由飞机-卫星空天链路的误码率及ADS-B应用子系统所要求的位置报文更新间隔联合决定。

关键词: 星基ADS-B系统, 报文冲突概率, 报文正确接收概率, 位置报文更新间隔, 监视容量

Abstract: Satellite-based Automatic Dependent Surveillance-Broadcast (ADS-B) is an important technology for wide-area aeronautical surveillance. Experiments show that the surveillance performance provided by the satellite-based ADS-B system deteriorates seriously due to co-channel interference within the system. To quantitatively analyze the surveillance capacity of the satellite-based ADS-B system, a model for the satellite-based ADS-B system is developed. The collision probability and the correct reception probability of messages sent by the ADS-B transmitter of civil aircraft are theoretically derived. The update intervals of position messages and the surveillance capacity of the satellite-based ADS-B receiver are obtained. Simulation results verify the correctness of these theoretical results. Our study shows that the surveillance capacity of the satellite-based ADS-B receiver is jointly determined by the symbol error rate of the aircraft-satellite link and the required update interval of the ADS-B application subsystem.

Key words: satellite-based ADS-B system, collision probability of messages, correct reception probability of messages, update interval of position message, surveillance capacity

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