面向通导共生的低轨卫星机会信号定位管理

doi:10.11959/j.issn.1000-0801.2023177

电信科学 ›› 2023, Vol. 39 ›› Issue (9): 122-128.doi: 10.11959/j.issn.1000-0801.2023177

• 研究与开发 • 上一篇

面向通导共生的低轨卫星机会信号定位管理

沈洁¹, 刘晖², 饶建兵², 贺泉², 本立言², 王治中¹, 熊瀛¹

¹ 北京零重空间技术有限公司，北京100084
² 卫星互联网国家重点实验室，北京 100029

修回日期:2023-07-28 出版日期:2023-08-01 发布日期:2023-08-01
作者简介:沈洁（1974- ），男，博士，北京零重空间技术有限公司正高级工程师，主要研究方向为无线通信、光通信、卫星通信、信息系统、微电子和量子信息等
刘晖（1968- ），男，博士，卫星互联网国家重点实验室教授、博士生导师，主要从事高精度卫星导航定位理论方法、连续运行参考站网络（CORS）理论与技术、国际通用数据标准、信号体制核心专利等方面的教学与研究工作，主要研究方向为网络RTK定位技术（NETRTK）、各类差分技术的标准化（RTCM）、信息网络及连续运行参考站网络的建设、测试与使用、信号体制核心专利研究等
饶建兵（1988- ），男，博士，卫星互联网国家重点实验室高级工程师，主要从事卫星互联网系统设计工作
贺泉（1984- ），男，博士，卫星互联网国家重点实验室高级工程师，主要从事卫星互联网系统设计工作
本立言（1989- ），男，博士，卫星互联网国家重点实验室高级工程师，主要从事卫星互联网系统设计工作
王治中（1981- ），男，博士，北京零重空间技术有限公司高级工程师，主要研究方向为卫星、GIS、遥感、物联网、计算机和大数据等
熊瀛（1980- ），女，北京零重空间技术有限公司工程师，主要研究方向为数据网、IP 网、发射场地面通信系统、机载通信系统、卫星通信系统和卫星测运控等

LEO satellite communication and navigation symbiosis positioning management based on signal of opportunity

Jie SHEN¹, Hui LIU², Jianbing RAO², Quan HE², Liyan BEN², Zhizhong WANG¹, Ying XIONG¹

¹ Beijing ZeroG Space Technology Co., Ltd., Beijing 100084, China
² State Key Laboratory of Satellite Internet, Beijing 100029, China

Revised:2023-07-28 Online:2023-08-01 Published:2023-08-01

摘要/Abstract

摘要：

通导共生是指通信和导航信号共存于卫星生态环境中。针对定位或通信的单一功能低轨卫星星座，在定位或通信信号不可用时难以快速进行定位管理的难题，提出了应用扩展卡尔曼滤波器算法，对低轨卫星通导共生星座的机会信号进行定位解算，突破定位管理对单一导航系统的依赖。首先，介绍了卡尔曼滤波的基本原理，结合低轨卫星多星座定位管理算法，提出了一种基于机会信号的卡尔曼滤波定位管理算法；其次，分析了所提算法的优点，包括提高定位精度、提高定位效率、提高定位稳定性等；最后，进行了实验，验证了所提算法的有效性。结果表明，所提算法能够有效地提高定位精度、定位效率、定位稳定性，为低轨卫星通导共生星座定位管理提供了一种有效的解决方案。

关键词: 全球导航卫星系统, 通导共生, 位置管理, 机会信号, 功率谱密度, 惯性导航系统, 扩展卡尔曼滤波器

Abstract:

Communication and navigation symbiosis refers to the coexistence of these signals in the satellite ecological environment.For single-function low-orbit satellite constellations for positioning or communication, it is difficult to quickly perform positioning management when positioning or communication signals are unavailable.The extended Kalman filter (EKF) algorithm was proposed to solve the location of the opportunity signals of LEO communication navigation symbiosis constellations, breaking through the dependence of location management on a single navigation system.Firstly, the basic principle of Kalman filter was introduced, and a Kalman filter location management algorithm based on opportunity signal combining with the positioning management algorithm of LEO satellite constellation was proposed.Secondly, the advantages of this algorithm were analyzed, including improving positioning accuracy, improving positioning efficiency, improving positioning stability, etc.Finally, experiments were carried out to verify the effectiveness of the algorithm.The results show that the algorithm can effectively improve the positioning accuracy, efficiency and stability, and provides an effective solution for LEO communication navigation symbiosis constellation location management.

Key words: global navigation satellite system, communication and navigation symbiosis, location management, signal of opportunity, power spectral density, inertial-navigation system, extended Kalman filter

中图分类号:

TP393

沈洁, 刘晖, 饶建兵, 贺泉, 本立言, 王治中, 熊瀛. 面向通导共生的低轨卫星机会信号定位管理[J]. 电信科学, 2023, 39(9): 122-128.

Jie SHEN, Hui LIU, Jianbing RAO, Quan HE, Liyan BEN, Zhizhong WANG, Ying XIONG. LEO satellite communication and navigation symbiosis positioning management based on signal of opportunity[J]. Telecommunications Science, 2023, 39(9): 122-128.

图/表 5

参考文献 16

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面向通导共生的低轨卫星机会信号定位管理

LEO satellite communication and navigation symbiosis positioning management based on signal of opportunity

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