Improving BDS-3 precise orbit determination for medium earth orbit satellites

Li, Xingxing; Yuan, Yongqiang; Zhu, Yiting; Jiao, Wenhai; Bian, Lang; Li, Xin; Zhang, Keke

doi:10.1007/s10291-020-0967-3

Cited by 28 publications

(14 citation statements)

References 44 publications

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“…CAST and SECM MEO satellites have opposite patterns of SLR residuals with the similar absolute value of slope due to that the Z-bus area with transmitter antennas is much larger than the X-bus surface area for SECM satellites and opposite for CAST. The systematic patterns of the SLR residuals can be reduced by using the a priori box-wing or cuboid box model based on CSNO released or calibrated metadata of BDS-3 satellites (Li et al, 2020a;Duan et al, 2021a;Yan et al, 2019b), as well as the purely empirical ECOM2 model (Yan et al 2019b). In general, better performance can be obtained for those models with calibrated optical coefficients.…”

Section: Solar Radiation Pressure (Srp)mentioning

confidence: 99%

Precise orbit determination for BDS satellites

et al. 2022

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Since the first pair of BeiDou satellites was deployed in 2000, China has made continuous efforts to establish its own independent BeiDou Navigation Satellite System (BDS) to provide the regional radio determination satellite service as well as regional and global radio navigation satellite services, which rely on the high quality of orbit and clock products. This article summarizes the achievements in the precise orbit determination (POD) of BDS satellites in the past decade with the focus on observation and orbit dynamic models. First, the disclosed metadata of BDS satellites is presented and the contribution to BDS POD is addressed. The complete optical properties of the satellite bus as well as solar panels are derived based on the absorbed parameters as well the material properties. Secondly, the status and tracking capabilities of the L-band data from accessible ground networks are presented, while some low earth orbiter satellites with onboard BDS tracking capability are listed. The topological structure and measurement scheme of BDS Inter-Satellite-Link (ISL) data are described. After highlighting the progress on observation models as well as orbit perturbations for BDS, e.g., phase center corrections, satellite attitude, and solar radiation pressure, different POD strategies used for BDS are summarized. In addition, the urgent requirement for error modeling of the ISL data is emphasized based on the analysis of the observation noises, and the incompatible characteristics of orbit and clock derived with L-band and ISL data are illuminated and discussed. The further researches on the improvement of phase center calibration and orbit dynamic models, the refinement of ISL observation models, and the potential contribution of BDS to the estimation of geodetic parameters based on L-band or ISL data are identified. With this, it is promising that BDS can achieve better performance and provides vital contributions to the geodesy and navigation.

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Section: Solar Radiation Pressure (Srp)mentioning

confidence: 99%

Precise orbit determination for BDS satellites

et al. 2022

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“…The BeiDou ISL's ranging accuracy can reach to 0.1-0.3 ns (3-10 cm), and the ISL transmission delay and the receiving delay residual are 0.0084 ns and 0.0399 ns, respectively (Tang et al 2018;Meng et al 2017). It is higher than the current BDS orbit accuracy in the along/cross (A/C) direction (10 cm) (Li et al 2020; http:// www. igmas.…”

Section: Validation Methodsmentioning

confidence: 85%

“…The same attitude equation was used during the eclipse in which C13 and C16 kept yaw-steering (YS), other satellites of BDS-2 IGSO/MEO used yaw-steering orbit-normal (YS-ON), and the switches between YS and ON take place when the sun elevation angle is approximately ± 4 deg (Dai et al 2015). BDS-3 Shanghai Engineering Center for Microsatellites (SECM) satellites use YS-ON, and BDS-3 China Academy of Space Technology (CAST) satellites keep YS (Li et al 2020). The yaw control model of CAST satellites was established by Dilssner (2017).…”

Section: Data and Pod Estimation Strategymentioning

confidence: 99%

Comparison of shadow models and their impact on precise orbit determination of BeiDou satellites during eclipsing phases

Zhang

Wang

et al. 2022

Earth Planets Space

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Solar radiation pressure (SRP) is an extremely critical perturbative force that affects the GNSS satellites’ precise orbit determination (POD). Its imperfect modelling is one of the main error sources of POD, whose magnitude is even to10−9 m/s2. The shadow factor (i.e., eclipse factor) is one crucial parameter of SRP, generally estimated by the cylindrical model, the conical model, or shadow models considering the Earth’s oblateness and the atmospheric effect, such as the Perspective Projection Method atmosphere (PPMatm) model and Solar radiation pressure with Oblateness and Lower Atmospheric Absorption, Refraction, and Scattering Curve Fit (SOLAARS-CF) model. This paper applies the former four shadow models to determine the corresponding precise orbit using BeiDou satellites’ ground-based observation, and then compared and assessed the orbit accuracy through Satellite Laser Ranging (SLR) validation and Inter-Satellite Link (ISL) check. The results show that the PPMatm model’s accuracy is equivalent to the SOLAARS-CF model. Compared with the conical shadow model, SLR validations show the orbit accuracy from the PPMatm and SOLAARS-CF model can be generally improved by 2–10 mm; ISL range check shows that the Root Mean Square (RMS) can be decreased by 2–7 mm. These results show that the shadow model in GNSS POD should fully consider the Earth’s oblateness and the atmospheric effect, especially for the perturbative acceleration higher than 10–10 m/s2. Graphical Abstract

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“…We focus on a hybrid SRP modeling, as many studies indicated its superiority against the empirical solutions for Galileo, QZSS, and BeiDou-3 (Bury et al 2019a, b;Li et al 2019Li et al , 2020, especially in the light of a series of GLONASS satellites for which the empirical models are insufficient. We test two approaches H1 and H2, which consider the analytical a priori model and set of ECOM and ECOM2 parameters, respectively.…”

Section: Methodsmentioning

confidence: 99%

GLONASS precise orbit determination with identification of malfunctioning spacecraft

et al. 2022

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Due to the continued development of the GLONASS satellites, precise orbit determination (POD) still poses a series of challenges. This study examines the impact of introducing the analytical tube-wing model for GLONASS-M and the box-wing model for GLONASS-K in a series of hybrid POD strategies that consider both the analytical model and a series of empirical parameters. We assess the perturbing accelerations acting on GLONASS spacecraft based on the analytical model. All GLONASS satellites are equipped with laser retroreflectors for satellite laser ranging (SLR). We apply the SLR observations for the GLONASS POD in a series of GNSS + SLR combined solutions. The application of the box-wing model significantly improves GLONASS orbits, especially for GLONASS-K, reducing the STD of SLR residuals from 92.6 to 27.6 mm. Although the metadata for all GLONASS-M satellites reveal similar construction characteristics, we found differences in empirical accelerations and SLR offsets not only between GLONASS-M and GLONASS-M+ but also within the GLONASS-M+ series. Moreover, we identify satellites with inferior orbit solutions and check if we can improve them using the analytical model and SLR observations. For GLONASS-M SVN730, the STD of the SLR residuals for orbits determined using the empirical solution is 48.7 mm. The STD diminishes to 41.2 and 37.8 mm when introducing the tube-wing model and SLR observations, respectively. As a result, both the application of the SLR observations and the analytical model significantly improve the orbit solution as well as reduce systematic errors affecting orbits of GLONASS satellites.

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Improving BDS-3 precise orbit determination for medium earth orbit satellites

Cited by 28 publications

References 44 publications

Precise orbit determination for BDS satellites

Precise orbit determination for BDS satellites

Comparison of shadow models and their impact on precise orbit determination of BeiDou satellites during eclipsing phases

GLONASS precise orbit determination with identification of malfunctioning spacecraft

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