北斗卫星导航系统伪距偏差特性及减轻措施研究

doi:10.12263/DZXB.20181039

电子学报 ›› 2021, Vol. 49 ›› Issue (5): 920-927.DOI: 10.12263/DZXB.20181039

北斗卫星导航系统伪距偏差特性及减轻措施研究

贺成艳^1,2, 郭际^1,2, 郝振圆^1,2, 王鹏博^1,2, 杨倩倩^1,2

1. 中国科学院国家授时中心, 陕西西安 710600;
2. 中国科学院大学, 北京 100039

收稿日期:2018-11-27 修回日期:2021-01-05 出版日期:2021-05-25
- 作者简介:
- 贺成艳 女,1986年12月生于山东省枣庄市.博士,中科院国家授时中心副研究员,硕士生导师,2020年度陕西省青年科技新星,主要从事卫星导航信号处理及信号质量评估技术等研究工作. E-mail:hechengyan@ntsc.ac.cn;郭际男,1955年5月出生于陕西省.研究员,博士生导师,中国科学院国家授时中心前主任,现任国家授时中心特聘研究员.主要从事导航系统设计与建设、天文测时、数据误差分析和国际地球自转联测等工作;郝振圆 男,1996年6月生于山东省济南市.硕士研究生,中国科学院国家授时中心,研究方向为北斗系统基带数字信号处理及伪距偏差问题研究;王鹏博 女,1997年5月生于陕西省西安市.硕士研究生,中国科学院国家授时中心,研究方向为卫星导航基带信号处理及信号质量评估技术研究;杨倩倩 女,1996年3月生于山东省聊城市.硕士研究生,中国科学院国家授时中心,研究方向为GNSS卫星导航信号处理与评估技术.
- 基金资助:
- 国家自然科学基金青年基金 (No.61501430）; 地理信息工程国家重点实验室开放基金 (No.SKLGIE2017-M-2-2）

Study on the Characteristics and Mitigation Measurements of BDS Pseudorange Biases

HE Cheng-yan^1,2, GUO Ji^1,2, HAO Zhen-yuan^1,2, WANG Peng-bo^1,2, YANG Qian-qian^1,2

1. National Time Service Center, Chinese Academy of Sciences, Xi'an, Shaanxi 710600, China;
2. University of Chinese Academy of Sciences, Beijing 100039, China

Received:2018-11-27 Revised:2021-01-05 Online:2021-05-25 Published:2021-05-25
- Supported by:
- Youth Fund of National Natural Science Foundation of China (No.61501430); Open Fund of State Key Laboratory of Geo-Information Engineering (No.SKLGIE2017-M-2-2)

摘要/Abstract

摘要： 随着人们对卫星导航系统定位精度需求的不断提升,近年来伪距偏差问题越来越受到广泛关注.然而截至目前,国内外专家学者对北斗系统的伪距偏差问题研究甚少.本文首先深入分析了北斗系统的伪距偏差产生根源,在此基础上对伪距偏差随接收机参数设置变化的关系进行详细阐述.然后基于昊平观测站的40m大口径天线采集的各颗北斗卫星下行信号数据,利用软件接收机遍历并分析了在不同接收机带宽、不同相关器间隔情况下,以及不同卫星仰角情况下北斗各颗卫星的B1I和B3I信号伪距偏差测量结果.最后根据北斗伪距偏差的特点,首次给出了我国北斗接收机参数设置建议.研究结果表明:在一定的接收机参数设置范围内,本文提出的方法可以将北斗伪距偏差降低到20cm以内.本文的研究成果不仅能够进一步促进广大专家学者对我国北斗伪距偏差的深入了解及广泛关注,同时还能促进我国BDS (BeiDou Navigation Satellite System)及其他GNSS(Global Navigation Satellite System)系统接口控制文件的进一步完善.

关键词: 北斗卫星导航系统, 伪距偏差, 减轻技术, 接收机配置, 接口控制文件

Abstract: With the increasing demands for higher positioning precision of global satellite navigation systems, pseudorange biases have been receiving more and more attentions in recent years. Unfortunately, few researches have been done on the pseudorange biases of Beidou navigation satellite system (BDS). The origin of BDS pseudorange biases are illustrated thoroughly in the beginning, and then based on which the dependency of biases on receiver configurations are studied. Our research used high-fidelity BDS satellite signal observations collected by a 40 m high-gain dish antenna in Haoping Observatory, and used software receiver technology to achieve the pseudorange biases results of BDS B1I and B3I signals from different front-end bandwidths, different correlator spacings and different satellite elevations. Finally, based on the characteristics of BDS pseudorange biases, the suggested settings of BDS receiver configurations such as front-end bandwidth and correlator spacing are clearly proposed for the first time. Research results show that the pseudorange biases of BDS signals will be less than approximately 20 cm under the condition proposed in this paper. This study will contribute to a better understanding of and special attention to pseudorange biases, and will be a significant promotion to a clear definition of the appropriate receiver parameter settings in the ICDs for BDS and other individual satellite system.

Key words: Beidou navigation satellite system, pseudorange biases, mitigation method, receiver configuration, interface control documents

中图分类号:

TN911.6

贺成艳, 郭际, 郝振圆, 等. 北斗卫星导航系统伪距偏差特性及减轻措施研究[J]. 电子学报, 2021, 49(5): 920-927.

HE Cheng-yan, GUO Ji, HAO Zhen-yuan, et al. Study on the Characteristics and Mitigation Measurements of BDS Pseudorange Biases[J]. Acta Electronica Sinica, 2021, 49(5): 920-927.

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北斗卫星导航系统伪距偏差特性及减轻措施研究

Study on the Characteristics and Mitigation Measurements of BDS Pseudorange Biases

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