| 引用本文: | 王迪,骆盛,王勇,等.星链Ⅲ期回归共地面轨迹星座构型与覆盖分析.[J].国防科技大学学报,2024,46(5):150-158.[点击复制] |
| WANG Di,LUO Sheng,WANG Yong,et al.Constellation configuration and coverage analyses for recursive orbit and common track of Starlink phase Ⅲ[J].Journal of National University of Defense Technology,2024,46(5):150-158[点击复制] |
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| 星链Ⅲ期回归共地面轨迹星座构型与覆盖分析 |
| 王迪,骆盛,王勇,王磊 |
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(国防科技大学 电子对抗学院, 安徽 合肥 230037)
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| 摘要: |
| 基于轨道同步进动特性分析了星链卫星系统Ⅰ期、Ⅱ期星座演化趋势,揭示了多Walker-δ子星座构型存在的问题,研究了星链Ⅲ期拟采用的回归共地面轨迹星座构型的实现机理,并对其覆盖特性进行了仿真分析。结果表明:不同倾角的回归共地面轨迹卫星链可以在轨道高度差异很小的情况下实现同步进动,相对于多Walker-δ子星座的构型具有构型更稳定、覆盖性能更优的明显优势,特别适合巨型低轨互联网卫星系统。该研究可为加速推进我国同类卫星系统建设提供借鉴。 |
| 关键词: 星座构型 轨道同步进动 回归轨道 共地面轨迹 卫星链 |
| DOI：10.11887/j.cn.202405016 |
| 投稿日期：2022-05-23 |
| 基金项目:国家自然科学基金资助项目(61671454)；国家部委基金资助项目(2021-JCJQ-JJ-1211) |
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| Constellation configuration and coverage analyses for recursive orbit and common track of Starlink phase Ⅲ |
| WANG Di, LUO Sheng, WANG Yong, WANG Lei |
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(College of Electronic Engineering, National University of Defense Technology, Hefei 230037, China)
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| Abstract: |
| Based on the synchronous orbit precession characteristics, the constellation evolution of Starlink phase Ⅰ and phase Ⅱ was analyzed, the problems of multiple Walker-δ sub-constellation configuration were revealed, the mechanism of the recursive orbit and common track constellation configuration of Starlink phase Ⅲ was studied, and the coverage characteristics was simulated and analyzed. Results show that:the recursive orbit and common track satellite chains with different inclination can achieve synchronous precession with small differences in orbital altitude, and have continuous and compact ground coverage bands, which has the obvious advantages of more stable configuration and better coverage performance compared to the multiple Walker-δ sub-constellation configuration, especially suitable for giant LEO internet satellite systems. This study can provide a reference for accelerating the construction of similar satellite systems in China. |
| Keywords: constellation configuration synchronous orbit precession recursive orbit common track satellite chain |
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