基于雷达与AIS数据的快速融合方法  

Rapid fusion of radar and AIS data based on lightweight databases

作　　者：杨笑天 阴晓刚 李伟 王梁[1,2] 谭金林 吴意 曹小敏 YANG Xiaotian;YIN Xiaogang;LI Wei;WANG Liang;TAN Jinlin;WU Yi;Cao Xiaomin(Shaanxi Aerospace Technology Application Research Institute Company Limited,Xi'an,Shaanxi 710100,China;China Academy of Space Technology(Xi'an),Xi'an,Shaanxi 710100,China)

机构地区：[1]陕西航天技术应用研究院有限公司,陕西西安710100 [2]西安空间无线电技术研究所,陕西西安710100

出　　处：《北京测绘》2025年第1期20-25,共6页Beijing Surveying and Mapping

摘　　要：雷达数据与船舶自动识别系统(AIS)的数据信息有不同的优势,进行数据融合可实现两类数据信息的互补。使用常规方法,在查找匹配数据时每次需对大量AIS数据进行解析,较依赖于计算机硬件资源,严重影响运行效率。针对大量AIS数据匹配难,循环遍历搜索慢的问题,文本利用轻量型数据库存储数据方便、查询便捷的优势,通过将一次解析的大量AIS数据存入数据库,避免了AIS数据的重复解析,减少了对计算机硬件资源的依赖。实验表明,针对3万条雷达数据与10万条AIS数据,本文方法可将大规模主动雷达数据与AIS采集的数据匹配融合耗时由原先的1 225 s减少为335 s,实现雷达数据与AIS数据的高效查找匹配,提升数据融合效率。Radar data and automatic identification system(AIS)data have different information advantages,and data fusion can achieve complementary information between the two types of data.Conventional methods require parsing a large amount of AIS data each time when searching for matching data,which heavily relies on computer hardware resources and seriously affects operational efficiency.In response to the problems of difficult matching of large amounts of AIS data and slow cyclic search,this paper utilized the advantages of lightweight databases for convenient data storage and querying and stored a large amount of AIS data parsed at once in the database to avoid duplicate parsing of AIS data and reduce dependence on computer hardware resources.The experiment shows that the method proposed in this paper can reduce the matching time between 30000 radar data and 100000 AIS data from 1225 s and 335 s,achieving efficient search and matching between radar data and AIS data and improving data fusion efficiency.

关 键 词：数据库 雷达 船舶自动识别系统(AIS)数据 数据融合 

分 类 号：P237.2[天文地球—摄影测量与遥感]