基于星链信标信号的多普勒定位方法与实验

doi:10.12305/j.issn.1001-506X.2024.08.01

系统工程与电子技术 ›› 2024, Vol. 46 ›› Issue (8): 2535-2545.doi: 10.12305/j.issn.1001-506X.2024.08.01

• 电子技术 •

基于星链信标信号的多普勒定位方法与实验

袁祎平¹, 易建新¹^,*, 万显荣¹, 郝才勇¹^,²

1. 武汉大学电子信息学院, 湖北武汉 430072
2. 国家无线电监测中心深圳监测站, 广东深圳 518000

收稿日期:2023-08-15 出版日期:2024-07-25 发布日期:2024-08-07
通讯作者: 易建新
作者简介:袁祎平 (1999—),男,硕士研究生,主要研究方向为机会导航、软件定义无线电
易建新 (1989—),男,副教授,博士,主要研究方向为外辐射源雷达信号处理、非线性信号处理
万显荣 (1975—),男,教授,博士,主要研究方向为新体制雷达设计
郝才勇 (1989—),男,博士研究生,主要研究方向为星基无源定位
基金资助:
国家自然科学基金(61931015);国家自然科学基金(62071335);国家自然科学基金(62250024);湖北省自然科学基金创新群体(2021CFA002);中央高校自主科研项目(2042022dx0001)

Doppler positioning method and experiment based on Starlink beacon signal

Yiping YUAN¹, Jianxin YI¹^,*, Xianrong WAN¹, Caiyong HAO¹^,²

1. School of Electronic Information, Wuhan University, Wuhan 430072, China
2. Shenzhen Monitoring Station, The State Radio Monitoring Center, Shenzhen 518000, China

Received:2023-08-15 Online:2024-07-25 Published:2024-08-07
Contact: Jianxin YI

摘要/Abstract

摘要：

未来十年全球将陆续发射数以万计的近地轨道卫星, 组成巨型星座, 这将为定位导航应用提供大量不同频段、带宽和制式的机会信号。为了便于利用卫星机会信号, 设计一种轻量级模块化的通用型接收设备, 率先观测到星链卫星下行信号频道间间隔中心处的信标信号(11.95 GHz/12.45 GHz)。基于该信标信号提出多普勒提取和定位方法, 并开展外场实验, 接收获得6颗星链卫星的信号, 利用其实现接收站定位。接收机的三维定位误差为28.9 m, 水平定位误差为11.8 m, 验证了星链信标信号用于多普勒定位的实际有效性。

关键词: 低轨卫星, 星链, 信标信号, 多普勒提取, 多普勒定位

Abstract:

In the next decade, tens of thousands of low Earth orbit (LEO) satellites will be launched around the world to form a mega constellation, which will provide a large number of opportunity signals of different frequency bands, bandwidths and formats for positioning and navigation applications. In order to facilitate the use of satellite opportunity signals, a lightweight modular universal receiving device is designed, which firstly observe the beacon signal at the center of the interval (11.95 GHz/12.45 GHz) between the downlink signal channels of the Starlink satellite. Based on the beacon signal, a Doppler extraction and positioning method is proposed. Then field experiments are carried out, in which the signals of six Starlink satellites are acquired and the receiving station is positioned using these signals. The receiving device’s three-dimenaional (3D) positioning error is 28.9 m and horizontal positioning error is 11.8 m, which demonstrates the practical effectiveness of Doppler positioning based on Starlink beacon signals.

Key words: low Earth orbit satellite, Starlink, beacon signal, Doppler extraction, Doppler positioning

中图分类号:

袁祎平, 易建新, 万显荣, 郝才勇. 基于星链信标信号的多普勒定位方法与实验[J]. 系统工程与电子技术, 2024, 46(8): 2535-2545.

Yiping YUAN, Jianxin YI, Xianrong WAN, Caiyong HAO. Doppler positioning method and experiment based on Starlink beacon signal[J]. Systems Engineering and Electronics, 2024, 46(8): 2535-2545.

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基于星链信标信号的多普勒定位方法与实验

Doppler positioning method and experiment based on Starlink beacon signal

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