| 空间弥散X射线对脉冲星导航精度的影响 |
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| 引用本文： | 全林,周庆勇,赵鹏,戴泽,马超伟,张艳,石晟玮,王斌,王鲲鹏,欧阳晓平,张彩红.空间弥散X射线对脉冲星导航精度的影响[J].强激光与粒子束,2015,27(5):051013. |
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| 作者姓名： | 全林 周庆勇 赵鹏 戴泽 马超伟 张艳 石晟玮 王斌 王鲲鹏 欧阳晓平 张彩红 |
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| 作者单位： | 1.北京跟踪与通信技术研究所, 北京 1 00094; |
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| 摘 要： | 基于RXTE卫星天基数据,建立了时空坐标系转换、时间修正及历元折叠方法,构建了用于提取导航信息的Crab脉冲星轮廓,剖析了该天基载荷结构及特性,对卫星运行空间背景辐射进行了模拟计算。结果表明,在设定导航条件下,空间弥散X射线对航天器单星定轨及多星定位影响在km量级以上。同时阐述了实用化脉冲星导航探测中,改进导航定位精度急需注意的技术问题。
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| 关 键 词： | RXTE卫星 脉冲星导航 脉冲轮廓 导航精度 |
| 收稿时间： | 2014-12-20 |
Influence of space dispersive X-ray on pulsar navigation |
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| Institution: | 1.Beijing Institute of Tracking and Communication Technology,Beijing 100094,China;2.Xi’an Research Institute of Surveying and Mapping,Xi’an 710054,China;3.Northwest Institute of Nuclear Technology,Xi’an 710024,China;4.Key Laboratory of Earthquake Geodesy,Institute of Seismology,China Earthquake Administration,Wuhan 430071,ChinaAbstract: Based on space-based data of |
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| Abstract: | Based on space-based data of RXTE satellite, we established the method of a space-time coordinate system conversion, time correction and epoch folding, constructed the Crab pulsar contour for extracting navigation information, analyzed the structure and characteristics of space-based loads, and simulated the background radiation with RXTE satellite. In the setting condition of navigation, the accuracies of a single satellite orbit and multi-satellite orbit positionings were quantitatively analyzed, and the urgent attention to the technical problems to improve the navigation and positioning accuracy was described in the later pulsar navigation detection. |
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