Orbit determination using combined GPS + Beidou observations for low earth cubesats: Software validation in ground testbed

Yang Yang, Xiaokui Yue, Geshi Tang, Hongzheng Cui, Baiyan Song

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Nowadays, satellites in low earth orbit (LEO) can benefit from Global Navigation Satellite System (GNSS), such as Global Positioning System (GPS) of United States, to estimate positions and velocities. As China’s BeiDou Navigation Satellite System (BDS) has been formally operational since the end of 2012, standalone Beidou and combined GPS + Beidou positioning techniques tend to be applied in the future space missions. However, no LEO satellites have been operated with Beidou receivers at present. Hence Beidou-based precise orbit determination (POD) technique is required to be tested and verified on ground at first stage. This study is to test the GPS + Beidou orbit determination software in ground testbed. GNSS data collected from iGMAS (International GNSS Monitoring and Assessment Service) and MGEX (Multi-GNSS Experiment) stations are processed in both static and kinematic PPP (Precise Point Positioning) modes. Decimetre level of positioning accuracy is achieved. The inter-system biases between GPS and Beidou are estimated and analysed. Results indicate that GPS + Beidou solutions are more precise than the standalone GPS solutions.

Original languageEnglish
Title of host publicationChina Satellite Navigation Conference, CSNC 2015, Proceedings
EditorsShiwei Fan, Xiaochun Lu, Jiadong Sun, Jingnan Liu
PublisherSpringer Verlag
Pages321-334
Number of pages14
ISBN (Print)9783662466315
DOIs
StatePublished - 2015
Event6th China Satellite Navigation Conference, CSNC 2015 - Xian, China
Duration: 13 May 201515 May 2015

Publication series

NameLecture Notes in Electrical Engineering
Volume342
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference6th China Satellite Navigation Conference, CSNC 2015
Country/TerritoryChina
CityXian
Period13/05/1515/05/15

Keywords

  • GPS + Beidou
  • Kinematic PPP
  • LEO cubesats
  • Orbit determination

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