| 一种可补充和验证GNSS的低轨PNT系统设计 |
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| 引用本文： | 金玲,窦骄,刘志佳,严林.一种可补充和验证GNSS的低轨PNT系统设计[J].南京航空航天大学学报,2018,50(S1):103-107. |
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| 作者姓名： | 金玲 窦骄 刘志佳 严林 |
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| 作者单位： | 航天东方红卫星有限公司, 北京, 100094 |
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| 摘 要： | 提出了一种以星上有效载荷的形式搭载在低轨综合卫星平台上的PNT服务系统，可作为GNSS系统的补充、备份和验证手段。本文总结了低轨卫星PNT服务的发展现状，提出了该低轨PNT服务系统的设计方案和总体架构，分析了系统的工作原理、服务性能以及对GNSS系统的可补充和验证性。最后给出了系统建设需要研究的几项关键技术，初步论证了该PNT系统的可行性和技术可实现性。
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| 关 键 词： | 低轨PNT GNSS补充及验证 导航有效载荷 伪距多普勒联合定位 |
| 收稿时间： | 2018/3/23 0:00:00 |
| 修稿时间： | 2018/5/30 0:00:00 |
Design of LEO-Based PNT System for GNSS Backup and Validation |
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| JIN Ling,DOU Jiao,LIU Zhiji,YAN Lin.Design of LEO-Based PNT System for GNSS Backup and Validation[J].Journal of Nanjing University of Aeronautics & Astronautics,2018,50(S1):103-107. |
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| Authors: | JIN Ling DOU Jiao LIU Zhiji YAN Lin |
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| Institution: | DFH Satellite Co Ltd, Beijing, 100094, China |
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| Abstract: | A PNT service system in the form of a hosted payload piggybacked on the common platform of LEO constellation is presented as a complement, backup and verification for GNSS system. The development status of LEO-based PNT is summarized, the strategy and overall framework of this LEO-based PNT system are presented, then the working principle and service performance of this system for backup and verification for GNSS are analyzed. Finally the key technologies for system construction are introduced, and the feasibilities of strategy and technologies for the PNT system are preliminarily demonstrated. |
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| Keywords: | LEO-based PNT GNSS backup and validation navigation hosted payload pseudorange-Doppler joint positioning |
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