Results 31 to 40 of about 11,710 (202)
The progress of laser ranging technology at Shanghai Astronomical Observatory
As an important station of International Laser Ranging Service (ILRS), Shanghai Astronomical Observatory (SHAO) has upgraded Satellite Laser Ranging (SLR) system with high repetition rate and achieved some technological progress.
Zhibo Wu +6 more
doaj +1 more source
Experimental Satellite Quantum Communications [PDF]
Quantum Communications on planetary scale require complementary channels including ground and satellite links. The former have progressed up to commercial stage using fiber-cables, while for satellite links, the absence of terminals in orbit has impaired
Bacco, Davide +6 more
core +2 more sources
Quality of Orbit Predictions for Satellites Tracked by SLR Stations
This study aims to evaluate and analyze the orbit predictions of selected satellites: geodetic, Global Navigational Satellite Systems (GNSS), and scientific low-orbiting, which are tracked by laser stations.
Joanna Najder, Krzysztof Sośnica
doaj +1 more source
Generally, the dynamical model is used to estimate coordinates of satellite laser ranging (SLR) stations. In this paper, we put forward a kinematic method to estimate the coordinates of SLR stations by using global navigation satellite system (GNSS ...
Jinyun Guo +5 more
doaj +1 more source
Satellite Laser Ranging System at Geochang Sta
Korea Astronomy and Space Science Institute (KASI) has been developing the space optical and laser tracking (SOLT) system for space geodesy, space situational awareness, and Korean space missions. The SOLT system comprises satellite laser ranging (SLR),
Hyung-Chul Lim +7 more
doaj +1 more source
The Design Concept of the First Mobile Satellite Laser Ranging System (ARGO-M) in Korea [PDF]
Korea Astronomy and Space Science Institute (KASI) launched the development project of two satellite laser ranging (SLR) systems in early 2008 after the government fund approval of the SLR systems in 2007.
Jung Hyun Jo +12 more
doaj +1 more source
Earth Rotation Parameters Estimation Using GPS and SLR Measurements to Multiple LEO Satellites
Earth rotation parameters (ERP) are one of the key parameters in realization of the International Terrestrial Reference Frames (ITRF). At present, the International Laser Ranging Service (ILRS) generates the satellite laser ranging (SLR)-based ERP ...
Xingxing Li +5 more
doaj +1 more source
A New Online Service for the Validation of Multi-GNSS Orbits Using SLR
In the last decade, we have been witnessing a rapid development of the constellations of Global and Regional Navigation Satellite Systems (GNSS/RNSS). Besides the well-known GPS and GLONASS, newly developed systems such as Galileo, BeiDou, QZSS and NAVIC
Radosław Zajdel +2 more
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ICESat‐2 Precision Orbit Determination
The 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.
T. C. Thomas +4 more
doaj +1 more source
Contribution of Etalon Observation to Earth Rotation Parameters under a New Observation Scenario
The standard products of the International Laser Ranging Service (ILRS) are mainly based on the two laser geodynamics satellites (LAGEOS) due to the sparse observations of the Etalon satellites.
Xiaozhen Zhang +3 more
doaj +1 more source

