| 引用本文: | 马宝林,吴杰,张洪波.SINS/CNS组合导航的导航星表构建方法.[J].国防科技大学学报,2016,38(3):61-67.[点击复制] |
| MA Baolin,WU Jie,ZHANG Hongbo.Construction method of guide star catalog for SINS/CNS[J].Journal of National University of Defense Technology,2016,38(3):61-67[点击复制] |
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| SINS/CNS组合导航的导航星表构建方法 |
| 马宝林, 吴杰, 张洪波 |
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(国防科技大学 航天科学与工程学院， 湖南 长沙 410073)
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| 摘要: |
| 构建满足完备性、精简性和查询快速性的导航星表是实现捷联惯性/星光组合导航系统的重要前提和保证。以天文学中的Tycho-2星表作为导航星表的初始星表，对球矩形分区方法进行了改进，包括明确分区及子分区的划分方法，提出了备选导航星的选择策略。实验结果表明，采用改进型球矩形分区方法的备选导航星数量最多只占赤纬带法导航星的19.37%，仅占全天遍历法导航星的3.12%。因此，改进型球矩形分区方法更加精准，查询更快捷，更适用于捷联惯性/星光组合导航系统。 |
| 关键词: 导航星表 Tycho-2星表 改进型球矩形法 备选导航星选择策略 |
| DOI：10.11887/j.cn.201603011 |
| 投稿日期：2015-09-04 |
| 基金项目:国家部委基金资助项目（51309040101） |
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| Construction method of guide star catalog for SINS/CNS |
| MA Baolin, WU Jie, ZHANG Hongbo |
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(College of Aerospace Science and Engineering, National University of Defense Technology， Changsha 410073， China)
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| Abstract: |
| Building a guide star catalog which has the characteristics of completeness, simplicity and query rapidity is an important prerequisite and guarantee to realize the SINS/CNS(strapdown inertial navigation system/celestial navigation system). The Tycho-2 catalog in astronomy was selected as the initial catalog of the guide star catalog. The ball rectangle partition method was improved on the basis of the Tycho-2 catalog. It included how to divide the partition and the sub partition. The selection strategy of the alternative guide star was also creatively proposed. The experimental results show that the number of the alternative guide stars using the improved ball rectangle partition method most accounts for 19.37% of the guide stars used for the declination zone method and only accounts for 3.12% of the guide stars used for the traverse method. Therefore, the improved ball rectangle partition method is more accurate and rapid, and is more suitable for the strapdown inertial navigation system/celestial navigation system. |
| Keywords: guide star catalog Tycho-2 catalog improved ball rectangle method alternative guide star selection strategy |
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