Results 11 to 20 of about 4,573 (258)
Improving GLONASS Precise Orbit Determination through Data Connection [PDF]
Sensors, 2015 In order to improve the precision of GLONASS orbits, this paper presents a method to connect the data segments of a single station-satellite pair to increase the observation continuity and, consequently, the strength of the precise orbit determination ...
Yang Liu +5 more
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Precise Orbit Determination of MEX Flyby Phobos Using Simulated Radiometric and Image Data [PDF]
Sensors, 2021 A navigation camera or topography camera is a standard payload for deep space missions and the image data are normally used for auto-navigation. In this work, we study the potential contribution of image data in precise orbit determination for deep space
Xinbo Zhu +5 more
doaj +2 more sources
Precise orbit determination for BDS satellites [PDF]
Satellite Navigation, 2022 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 ...
Qile Zhao +6 more
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Undifferenced Kinematic Precise Orbit Determination of Swarm and GRACE-FO Satellites from GNSS Observations [PDF]
Sensors, 2022 Low Earth Orbit (LEO) satellites can be used for remote sensing and gravity field recovery, while precise orbit determination (POD) is vital for LEO satellite applications.
Peng Luo, Shuanggen Jin, Qiqi Shi
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T-RAIM for Precise Orbit Determination in LEO-PNT [PDF]
SensorsThe rapid development of Low Earth Orbit Position, Navigation, and Timing (LEO-PNT) constellations presents opportunities to augment Global Navigation Satellite Systems (GNSSs) with additional signals from Low Earth Orbit (LEO) satellites, thereby ...
Ciro Gioia +4 more
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Experimental Study on the Precise Orbit Determination of the BeiDou Navigation Satellite System [PDF]
Sensors, 2013 The regional service of the Chinese BeiDou satellite navigation system is now in operation with a constellation including five Geostationary Earth Orbit satellites (GEO), five Inclined Geosynchronous Orbit (IGSO) satellites and four Medium Earth Orbit ...
Jens Wickert +4 more
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Precision Assessment of Near Real Time Precise Orbit Determination for Low Earth Orbiter [PDF]
Journal of Astronomy and Space Sciences, 2011 The precise orbit determination (POD) of low earth orbiter (LEO) has complied with its required positioning accuracy by the double-differencing of observations between International GNSS Service (IGS) and LEO to eliminate the common clock error of the ...
Jong-Yeoun Choi, Sang-Jeong Lee
doaj +4 more sources
ICESat‐2 Precision Orbit Determination [PDF]
Earth and Space Science, 2021 AbstractThe ICESat‐2 Precision Orbit Determination (POD) system computes the precise position of the laser altimeter instrument in inertial space, a measurement necessary for accurate geolocation of individual photon surface returns. ICESat‐2 POD solutions are generated by the reduction of Global Positioning System (GPS) double‐difference carrier phase
T. C. Thomas +4 more
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Aerospace, 2022 The real-time integer-ambiguity resolution of the carrier-phase observation is one of the most effective approaches to enhance the accuracy of real-time precise point positioning (PPP), kinematic precise orbit determination (KPOD), and reduced-dynamic ...
Zhiyu Wang +7 more
doaj +1 more source
Remote Sensing, 2023 The global navigation satellite system (GNSS) is developing rapidly, and the related market applications and scientific research are increasing. Studies based on large low Earth orbit (LEO) satellite constellations have become research hotspots.
Baopeng Xu +8 more
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