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Precise Orbit Determination for Haiyang 2A Satellite Using Un-differenced DORIS Code and Phase Measurements

  • Quan ZhouEmail author
  • Jing Guo
  • Qile Zhao
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 305)

Abstract

Currently, the third generation DORIS instrument named DGXX has been developed and equipped on Jason-2, Cryosat-2, Saral and Chinese Haiyang 2A satellite. Compared with the previous ones, the DGXX has seven measurement channels, and is able to provide synchronous dual frequency phase and code measurements. The orbits could be determinated based on the dual frequency phase and pseudo-range measurements directly, and the systematic errors could be analyzed. This contribution presents the algorithm for precise orbit determination with DORIS code and phase measurements. In addition, the orbit of HY2A are determinated from January to May 2012 using Position And Navigation Data Analyst software. The differences with respect to CNES POE orbits indicate that the accuracy in radial and 3D is 1.0 and 5.3 cm, respectively. Satellite laser ranging validation the accuracy of HY2A orbits is about 2.24 cm. Compared with the orbits computed with Doppler measurements, the accuracy of orbits computed with un-differenced phase observables in along-track and radial is a bit higher, the lower accuracy in cross-track maybe caused by inaccuracy receiver DORIS clock.

Keywords

HY2A DORIS Pseudo-range and phase Precise orbit determination 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Test and Assessment Research CenterChina Satellite Navigation officeBeijingChina
  2. 2.GNSS Research CenterWuhan UniversityWuhanChina

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