Precise GNSS phase velocity determination for GRACE Follow-On satellites

doi:10.11947/j.AGCS.2021.20200140

Abstract

Abstract: In this study, we composed the velocity and acceleration of GRACE Follow-On satellites directly estimated from the onboard carrier phase observations based on the FIR (finite impulse response) differentiator instead of the orbit differentiation method. Using the level 1B data of GRACE Follow-On from DOY 305 to 314 in 2018, CODE(Center for Orbit Determination in Europe)precise ephemeris and 5 s clock corrections, the results showed that based on the ninth-point differentiator, the 3D root mean square (RMS) of satellite C and D velocity can achieve the accuracy at 0.227 6 mm/s and 0.238 4 mm/s (differentiator interval=60 s); Meanwhile, the 3D RMS values of acceleration can achieve the accuracy at 4.1 μm/s² and 4.5 μm/s² for satellite C and D respectively (differentiator interval=90 s). The GNSS phase direct differentiation method does not require a fixed ambiguity, which weakens the influence of the correlation between orbit epochs, respect to the kinematic orbit difference method and provides high-precision velocity and acceleration information for gravity field model determination.

Key words: GRACE Follow-On, on-board GPS observation, carrier phase, LEO acceleration

CLC Number:

P227

LIU Han, WEI Hui, ZOU Xiancai. Precise GNSS phase velocity determination for GRACE Follow-On satellites[J]. Acta Geodaetica et Cartographica Sinica, 2021, 50(12): 1772-1779.

References

[1] REIGBER C, LÜHR H, SCHWINTZER P. CHAMP mission status[J]. Advances in Space Research, 2002, 30(2):129-134.
[2] BISNATH S B. Precise orbit determination of low earth orbiters with a single GPS receiver-based, geometric strategy[D]. Canada:University of New Brunswick, 2004.
[3] TAPLEY B D, BETTADPUR S, WATKINS M, et al. The gravity recovery and climate experiment:mission overview and early results[J]. Geophysical Research Letters, 2004, 31(9):L09607.
[4] BOCK H, JÄGGI A, SVEHLA D, et al. Precise orbit determination for the GOCE satellite using GPS[J]. Advances in Space Research, 2007, 39(10):1638-1647.
[5] FLECHTNER F, MORTON P, WATKINS M, et al. Status of the GRACE follow-on mission[M]//MARTI U. Gravity, Geoid and Height Systems. Cham:Springer, 2014:117-121.
[6] ASCHBACHER J, MILAGRO-PÉREZ M P. The European Earth monitoring (GMES) programme:status and perspectives[J]. Remote Sensing of Environment, 2012, 120:3-8.
[7] MONTENBRUCK O, HACKEL S, JÄGGI A. Precise orbit determination of the Sentinel-3A altimetry satellite using ambiguity-fixed GPS carrier phase observations[J]. Journal of Geodesy, 2018, 92(7):711-726.
[8] BERTIGER W I, BAR-SEVER Y E, CHRISTENSEN E J, et al. GPS precise tracking of TOPEX/POSEIDON:results and implications[J]. Journal of Geophysical Research:Oceans, 1994, 99(C12):24449-24464.
[9] DUMONT J P, ROSMORDUC V, CARRERE L, et al. Jason-3 products handbook[R]. SALP-MU-M-OP-16118-CN, 2020.
[10] 魏辉.星载GPS低轨卫星简化动力学精密定轨方法研究[D].武汉:武汉大学, 2018. WEI Hui. Study on the reduced-dynamic precise orbit determination method for LEO satellite using GPS observations[D]. Wuhan:Wuhan University, 2018.
[11] FRIIS-CHRISTENSEN E, LÜHR H, KNUDSEN D, et al. Swarm-an earth observation mission investigating geospace[J]. Advances in Space Research, 2008, 41(1):210-216.
[12] YUNCK T P, WU S C, LICHTEN S M. A GPS measurement system for precise satellite tracking and geodesy[J]. Journal of the Astronautical Sciences, 1985, 33:367-380.
[13] LICHTEN S M, WU S C, WU J T, et al. Precise positioning capabilities for TOPEX using differential GPS[J]. Astrodynamics, 1985, 58:597-613.
[14] YUNCK T P, WU S C, WU J T, et al. Precise tracking of remote sensing satellites with the Global Positioning System[J]. IEEE Transactions on Geoscience and Remote Sensing, 1990, 28(1):108-116.
[15] 李昕,郭际明,章迪,等.基于多普勒测速的GPS单历元动态定位算法[J].武汉大学学报(信息科学版), 2018, 43(7):1036-1041. LI Xin, GUO Jiming, ZHANG Di, et al. An algorithm of GPS single-epoch kinematic positioning based on Doppler velocimetry[J]. Geomatics and Information Science of Wuhan University, 2018, 43(7):1036-1041.
[16] ZHANG Jianjun. Precise velocity and acceleration determination using a standalone GPS receiver in real time[D]. Australia:RMIT University, 2007.
[17] JEKELI C, GARCIA R. GPS phase accelerations for moving-base vector gravimetry[J]. Journal of Geodesy, 1997, 71(10):630-639.
[18] KENNEDY S L. Acceleration estimation from GPS carrier phases for airborne gravimetry[D]. Canada:University of Calgary, 2002.
[19] SALAZAR D, HERNANDEZ-PAJARES M, JUAN-ZORNOZA J M, et al. EVA:GPS-based extended velocity and acceleration determination[J]. Journal of Geodesy, 2011, 85(6):329-340.
[20] WU Tangting, LI Jiancheng, XU Xinyu, et al. Gravity field model determination based on GOCE satellite point-wise accelerations estimated from onboard carrier phase observations[J]. Remote Sensing, 2019, 11(12):1420.
[21] 庞振兴,姬剑锋,肖云,等.利用谱分析法估计GRACE Follow-On地球重力场的空间分辨率[J].测绘学报, 2012, 41(3):333-338. PANG Zhenxing, JI Jianfeng, XIAO Yun, et al. Estimation of the resolution of Earth's gravity field for GRACE Follow-On using the spectrum method[J]. Acta Geodaetica et Cartographica Sinica, 2012, 41(3):333-338.
[22] LOOMIS B D, NEREM R S, LUTHCKE S B. Simulation study of a follow-on gravity mission to GRACE[J]. Journal of Geodesy, 2012, 86(5):319-335.
[23] 郑伟,许厚泽,钟敏,等.利用解析法有效快速估计将来GRACE Follow-On地球重力场的精度[J].地球物理学报, 2010, 53(4):796-806. ZHENG Wei, XU Houze, ZHONG Min, et al. Efficient and rapid estimation of the accuracy of future GRACE Follow-On Earth's gravitational field using the analytic method[J]. Chinese Journal of Geophysics, 2010, 53(4):796-806.
[24] BRUTON A M. Improving the accuracy and resolution of SINS/DGPS airborne gravimetry[D]. Canada:University of Calgary, 2000.
[25] BRUTON A M, GLENNIE C, SCHWARZ K P. Differentiation for high-precision GPS velocity and acceleration determination[J]. GPS Solutions, 1999, 2(4):7-21.
[26] KENNEDY S L. Precise acceleration determination from carrier-phase measurements[J]. Navigation, 2003, 50(1):9-19.
[27] WEN H Y, KRUIZINGA G, MEEGYEONG P, et al. Gravity recovery and climate experiment (GRACE) Follow-On (GRACE-FO) level-1 data product user handbook[R]. 2019.
[28] BOCK H, DACH R, JÄGGI A, et al. High-rate GPS clock corrections from CODE:support of 1 Hz applications[J]. Journal of Geodesy, 2009, 83(11):1083.
[29] ZENG Tian, SUI Lifen, JIA Xiaolin, et al. Results and analyses of BDS precise orbit determination with the enhancement of Fengyun-3C[J]. Journal of Geodesy and Geoinformation Science, 2019, 2(3):68-78.