| 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。 |
| 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 |
| DOI： |
|
| 基金项目: |
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| Realization and Improvement of Navigation Function of Link16 |
| CAO Nai-sen,ZHAO Jing,DING Yong-qiang |
| (Department of Aeronautic Electronic Engineering,The First Aeronautic Institute
of Air Force,Xinyang 464000,China) |
| Abstract: |
| The relative navigation and precise positioning technology based on synch
ronization is the key of Link16 operation. Because there is few detailed explana
tion about this technology, this paper illustrates the basic principle of relati
ve navigation, studies the method and process of precise synchronization based o
n Round-Trip Timing message, builds the data conversion mode between relative g
rid coordination and geographical grid coordination, and finally proposes a sche
me to improve the navigation precision with GPS/IMU data fusion and Kalman filte
ring. The application result shows that the scheme can improve greatly navigatio
n precision of data link. |
| Key words: JTIDS Link16 data link relative navigation roun
d-trip timing navigation precision precise positioning |
