Results 1 to 10 of about 87,749 (95)
Precise Orbit Determination of BDS MEO Satellites Based on Satellite TT&C Stations [PDF]
International Journal of Aerospace Engineering, 2016 A novel method, which is based on the triple-frequency combination and Space-Based Telemetry, Tracking, and Command (STT&C) stations, is proposed in this paper.
Kezhao Li +5 more
doaj +3 more sources
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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Orbit Determination of GPS and Koreasat 2 Satellite Using Angle-Only Data and Requirements for Optical Tracking System [PDF]
Journal of Astronomy and Space Sciences, 2004 Gauss method for the initial orbit determination was tested using angle-only data obtained by orbit propagation using TLE and SGP4/SDP4 orbit propagation model.
Woo-Kyoung Lee +5 more
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Precise orbit determination for BDS satellites
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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Precise orbit determination of Spire nano satellites [PDF]
, 2023 Spire Global, Inc. operates a growing fleet of currently more than 100 CubeSats in different low Earth orbits for commercial Earth observation. These satellites are equipped with dual-frequency GPS receivers and an attitude determination and control ...
Arnold, Daniel +4 more
core +1 more source
Precise Orbit Determination of MEX Flyby Phobos Using Simulated Radiometric and Image Data
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
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Test and Performance Analysis Methods of Low Earth Orbit GPS Receiver [PDF]
Journal of Astronomy and Space Sciences, 2006 The use of GPS receiver at outer space becomes common in low earth orbit. Recently most of satellites use GPS receiver as navigation solution for finding satellite position.
Dae-Won Chung, Sang-Jeong Lee
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A Concise Method for Calibrating the Offset of GPS Precise Satellite Orbit
Remote Sensing, 2022 A set of Global Navigation Satellite Systems (GNSS) satellite orbit and clock offset are an essential prerequisite for precise application. However, abrupt changes in accuracy at the boundaries are prevalent in products provided by international GNSS ...
Hu Yang +4 more
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Review of the Precise Orbit Determination for Chinese Lunar Exploration Projects
Earth and Space Science, 2021 China's lunar exploration program has developed and progressed for more than 13 years. Over this time, Precise Orbit Determination (POD) has guaranteed successful execution of the Chang’e missions, and is the basis for further scientific investigations ...
Shanhong Liu +6 more
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