摘要
ADS-B是国际民航组织正在积极推广的一种航行监视技术。S模式前导脉冲检测方法是现有1090ES ADS-B接收技术的关键和难点,是后续报文有效提取的前提和基础。基于1090ES ADS-B消息信号标准通信协议,充分利用了消息前导部分能量分布的特点,提出了一种能量动态匹配检测方法,定位前导脉冲位置,并通过消息数据部分中DF字段脉冲功率一致性验证,从而确保前导脉冲检测的严谨性。实验结果表明,该检测方法是完全可行的,具有更高的检测概率,并且也适用于存在交织时的前导脉冲检测。
ADS-B is a navigation monitoring technology that the ICAO is actively promoting. The S mode preamble pulse detection method is the key and difficult point of the existing 1090 ES ADS-B reception technology,and is the premise and foundation for effective extraction of subsequent messages. Based on the standard communication protocol of 1090 ES ADS-B message signal,this paper makes full use of the characteristics of the energy distribution in the preamble. A dynamic matching detection method is proposed to locate the position of the preamble pulse and verify the consistency of the pulse power of the DF field in the message part,thus ensuring the preciseness of the preamble detection. The experimental results show that the detection method is completely feasible and has higher detection probability,and it is also suitable for preamble detection when there is interleaving.
作者
王永利
姚旺君
陈严君
张鹏
Wang Yongli, Yao Wangjun, Chcn Yanjun, Zhang Pcng(The 6th Research Institute of China Electronics Corporation, Beijing 100083, Chin)
出处
《信息技术与网络安全》
2018年第8期83-87,共5页
Information Technology and Network Security
