Title: Analysis on BDS signal ranging performance onboard LEO satellite

Authors: Xue Wang; Zhenghong Zhu; Xiaochun Lu; Sen Wang

Addresses: National Time Service Center, Chinese Academy of Sciences, Xi'an, 710600, China; Key Laboratory of Precision Navigation, Positioning and Timing Technology, Chinese Academy of Sciences, Xi'an, Shaanxi 710600, China; School of Electronic and Communication Engineering, University of Chinese Academy of Sciences, Beijing, 101408, China ' Department of Mechanical Engineering, York University, M3J 1P3, Canada ' National Time Service Center, Chinese Academy of Sciences, Xi'an 710600, China; Key Laboratory of Precision Navigation, Positioning and Timing Technology, Chinese Academy of Sciences, Xi'an, Shaanxi 710600, China ' National Time Service Center, Chinese Academy of Sciences, Xi'an, 710600, China; Key Laboratory of Precision Navigation, Positioning and Timing Technology, Chinese Academy of Sciences, Xi'an, Shaanxi 710600, China; School of Electronic and Communication Engineering, University of Chinese Academy of Sciences, Beijing, 101408, China

Abstract: Global Navigation Satellite System (GNSS) is used to achieve low Earth orbiting (LEOs) satellites orbit determination and time synchronisation. The high accuracy time synchronisation and orbit determination between satellites are completely dependent on time and phase measurement accuracy of GNSS receiver. In this paper, the distortions of new BDS signal and the performance of spaceborne receivers are mainly analysed. The satellite orbit data are used to calculate the dynamics of radial distance, velocity, and acceleration between the LEO satellite and the BDS satellites, such as geostationary (GEO) and medium Earth orbit (MEO). In acquisition processing, the effects of signal correlation performance and carriers Doppler are analysed, such as the correlation loss, the drift of correlation curve and the bit inversion. In tracking processing, the carrier-to-noise ratio, tracking accuracy of code and carrier are simulated in the case of dynamic, especially the BDS signal is simulated.

Keywords: low Earth orbit satellite; GNSS signal; high dynamic; acquirement; tracking error.

DOI: 10.1504/IJSPACESE.2019.105057

International Journal of Space Science and Engineering, 2019 Vol.5 No.4, pp.339 - 354

Received: 08 Jun 2019
Accepted: 06 Aug 2019

Published online: 07 Feb 2020 *

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