Link16数据链导航功能实现与改进  

Realization and Improvement of Navigation Function of Link16

作　　者：曹乃森[1] 赵敬[1] 丁永强[1] 

机构地区：[1]空军第一航空学院航空电子工程系,河南信阳464000

出　　处：《电讯技术》2011年第5期11-16,共6页Telecommunication Engineering

摘　　要：基于同步的相对导航与精确定位技术是Link16数据链运行的关键。针对国内文献对该技术介绍较少的情况,分析了相对导航的基本原理,研究了利用往返计时报文实现精确同步的方法和步骤,建立了相对导航解算方程以及相对栅格与地理栅格坐标之间的数据转换模型,最后提出了一种用GPS/IMU数据融合和卡尔曼滤波方法提高导航精度的方案。应用结果表明,该方案能显著提高数据链的导航精度。The relative navigation and precise positioning technology based on synchronization is the key of Link16 operation. Because there is few detailed explanation about this technology, this paper illustrates the basic principle of relative navigation, studies the method and process of precise synchronization based on Round-Trip Timing message, builds the data conversion mode between relative grid coordination and geographical grid coordination, and finally proposes a scheme to improve the navigation precision with GPS/IMU data fusion and Kahnan filtering. The application result shows that the scheme can improve greatly navigation precision of data link.

关 键 词：联合战术信息分发系统 LINK16数据链 相对导航 往返计时 导航精度 精确定位 

分 类 号：TN96[电子电信—信号与信息处理]