天地一体化信息网络2024，Vol.5Issue(4)：3-16,14.DOI:10.11959/j.issn.2096-8930.2024034
低轨卫星机会信号导航定位方法
Navigation and Positioning Methods Using Signal of Opportunity of Low Earth Orbit Satellites
摘要
Abstract
In recent years,low earth orbit(LEO)giant constellations have developed rapidly,and their main goal is to provide users with high-speed Internet services.As a global coverage satellite communication system,its potential in navigation,positioning and time service remains to be developed.LEO constellations have the advantages of high signal landing power,abundant signal resources,and high survivability.Utilizing the signal of opportunity of LEO satellites for positioning is a backup navigation method when GNSS is un-available.This paper provided a detailed summary of the deployment,signal and frequency characteristics of typical LEO constellations worldwide,and outlined the methods of receiving and processing LEO satellite signals and positioning solutions.A mathematical simu-lation was conducted on the opportunistic navigation method of LEO satellites,and Doppler positioning and pseudorange positioning methods were compared and analyzed.The future development trend of opportunistic navigation of LEO satellites was discussed.关键词
低轨星座/非导航卫星/机会信号/多普勒定位Key words
low earth orbit satellite constellation/satellites for non-navigation purposes/signal of opportunity/Doppler positioning分类
信息技术与安全科学引用本文复制引用
张艺超,赵祥天,赵亚飞,孙耀华,江城,张世杰,彭木根..低轨卫星机会信号导航定位方法[J].天地一体化信息网络,2024,5(4):3-16,14.基金项目
中国博士后科学基金(No.2023M730337)China Postdoctoral Science Foundation(No.2023M730337) （No.2023M730337）
