ADS-B数据报文采集与解析系统的设计与实现

Design and implementation of ADS-B data packet collection and analysis system

针对典型ADS-B地面站系统中显控主机显示的信息量较少,且不支持飞行目标航迹数据报文实时采集、数据层面的航迹信息动态显示、原始数据报文历史回放等更细粒度的实际应用需求,旨在构建一套ADS-B数据报文采集与解析系统,尝试在ADS-B地面站处理主机后方对所获取报文的处理应用进行优化改进,对ADS-B Category(Cat)021报文的数据采集方法进行设计,采用UDP组播引接外联方式转发至Cat 021报文解析处理模块,按照标准的Cat 021数据报文协议格式,设计实现相应的报文解析算法,实时对采集的数据报文进行解析和分类存储。

The amount of information contained in the typical Automatic Dependent Surveillance-Broadcast(ADS-B)terrestrial station system is often small,and it does not support the real-time collection of the flight target track data packets,the dynamic display of track information at the data level,and the more granularity of the historical playback of raw data packets.For these practical application needs,this article aims to build a set of ADS-B data packet collection and analysis system,and try to optimize the processing applications of the acquired messages after processing the host by the ADS-B ground station,designing the data collection method of ADS-B Category(Cat)021 packet,using UDP multicast to connect externally to Cat 021 packet parsing module.According to the standard Cat 021 data packet protocol format,a corresponding message parsing algorithm is designed and implemented to parse and store the collected data messages in real time.