A Comprehensive Signal Quality Assessment for BDS/Galileo/GPS Satellites and Signals

Author:

Tian Yijun1ORCID,Xiao Guorui2ORCID,Guo Rui1,Zhao Dongqing2ORCID,Zhang Lu1,Xin Jie1,Guo Jinglei1,Han Yuechao1,Du Xuefan1,He Donghan1,Qin Zheng1

Affiliation:

1. Beijing Satellite Navigation Center, Beijing 100094, China

2. Institute of Geospatial Information, Information Engineering University, Zhengzhou 450001, China

Abstract

With the modernization of global navigation satellite systems (GNSS), especially the rapid development of the BeiDou Navigation Satellite System (BDS), more observations of satellites and signals have become available. Using data of the globally distributed MGEX stations, a systematic and comprehensive evaluation of signal characteristics for BDS-3, BDS-2, GPS, and Galileo is conducted in terms of carrier-to-noise ratio (C/N0), code noise, and multipath in the contribution. First, a comprehensive signal quality assessment method for BDS/Galileo/GPS satellites and signals is proposed, including C/N0 modeling and MP modeling. For BDS, the BDS-3 satellites apparently have higher signal power than the BDS-2 satellites at the same frequency such as B1I and B3I, and the signal B2a of BDS-3 is superior to other signals in regard to signal power, which is comparable with the superior Galileo E5 signals and GPS L5. Among all the signals, the observation accuracy of E5 is the highest regardless of receiver types, and next highest are BDS-3 B2a and GPS L5. Due to not being affected by the systematic code errors of BDS-2, the observations of BDS-3 satellites contain smaller multipath errors than that of BDS-2 satellites. As for the multipath suppression performance, the BDS-3 signal B2a, GPS L5, and Galileo E5 and E5b perform better than the other signals, which may be related to their wide signal bandwidths.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Henan

China Postdoctoral Science Foundation

Publisher

MDPI AG

Reference35 articles.

1. (2024, April 12). ILRS BeiDou (COMPASS) Center of Mass Information, Available online: https://ilrs.gsfc.nasa.gov/missions/satellite_missions/current_missions/bm13_general.html.

2. BeiDou-3 broadcast clock estimation by integration of observations of regional tracking stations and inter-satellite links;Yang;GPS Solut.,2021

3. CSNO (2021, December 10). Report on the Development of BeiDou Navigation Satellite System (Version 2.1), Available online: http://www.beidou.gov.cn/xt/gfxz/201805/P020180509588857259014.pdf.

4. BDS-3 differential code bias estimation with undifferenced uncombined model based on triple-frequency observation;Gu;J. Geod.,2020

5. CSNO (2021, December 10). Development of BeiDou Navigation Satellite System (Version 4.0), Available online: http://www.beidou.gov.cn/xt/gfxz/201912/P020191227430565455478.pdf.

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3