航天器工程2019，Vol.28Issue(6)：124-129,6.DOI:10.3969/.j issn.1673-8748.201 9.06.019
星载蓝绿激光用于水下导航定位的方法探讨
Discussion on Method of Spaceborne Blue-green Laser for Underwater Navigation and Positioning
徐文霞 1左莉华 2张爽娜 3魏婵娟4
作者信息
- 1. 国防科技大学,长沙 410073
- 2. 中国空间技术研究院,北京 100094
- 3. 航天东方红卫星有限公司,北京 100094
- 4. 航天恒星科技有限公司,北京 100094
- 折叠
摘要
Abstract
With the development of laser technology,the applications of blue-green laser in under-water communication have been widely studied and the feasibility has been verified by experi-ments.Based on the above advantages,a method of spaceborne blue-green laser in underwater positioning is proposed, a low orbit satellite constellation composed of three satellites is designed,through which navigation and positioning are realized.In this paper the principle and method of positioning are described in detail,moreover,the main error sources affecting the pseudo-range measurement are analyzed.From the simulated results: three satellites of spaceborne blue-green laser can observe the same assigned region time for 6 times in a recursive period.The best positioning accuracy is acquired at the zenith-passing time of satellite,combined with the main error factors to estimate that:three satellites of spaceborne blue-green laser are used for underwater target observation,the accuracy can be better than 100 meters.关键词
星载激光/水下定位/定位方法/定位精度Key words
spaceborne laser/underwater positioning/positioning method/positioning accuracy分类
航空航天引用本文复制引用
徐文霞,左莉华,张爽娜,魏婵娟..星载蓝绿激光用于水下导航定位的方法探讨[J].航天器工程,2019,28(6):124-129,6.
