Results 11 to 20 of about 27,319 (300)
Evaluation of the Emissions State of a Satellite Laser Altimeter Based on Laser Footprint Imaging [PDF]
Remote Sensing, 2022 The GaoFen-7(GF-7) satellite is equipped with China’s first laser altimeter for Earth observation; it has the capability of full waveform recording, which can obtain global high-precision three-dimensional coordinates over a wide range.
Jiaqi Yao +4 more
doaj +2 more sources
Influence of Atmospheric Scattering on the Accuracy of Laser Altimetry of the GF-7 Satellite and Corrections [PDF]
Remote Sensing, 2021 Satellite laser altimetry can obtain sub-meter or even centimeter-scale surface elevation data over large areas, but it is inevitably affected by scattering caused by clouds, aerosols, and other atmospheric particles.
Jiaqi Yao +7 more
doaj +2 more sources
Satellite Laser Ranging in Egypt [PDF]
NRIAG Journal of Astronomy and Geophysics, 2015 AbstractThe paper concerns on the satellite laser ranging (SLR) in Egypt. The three generations which can be loosely defined by their single shot root mean square precision, are discussed. The laser generators used at the Helwan half automatic and full automatic stations are described.
Ibrahim, Makram +3 more
openaire +2 more sources
Laser location of satellites [PDF]
Astronomical School’s Report, 2002 History of beginnings of extraterrestrial objects laser location, its development in Ukraine, description of transmitting and receiving equipment of laser location stations are considered. Opportunities for their properties optimization are shown.
Yu. S. Denischik +2 more
openaire +2 more sources
POINTING ANGLE CALIBRATION OF ZY3-02 SATELLITE LASER ALTIMETER USING TERRAIN MATCHING [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 After GLAS (Geo-science Laser Altimeter System) loaded on the ICESat (Ice Cloud and land Elevation Satellite), satellite laser altimeter attracts more and more attention.
G. Li +14 more
doaj +1 more source
A Raman laser system for multi-wavelength satellite laser ranging [PDF]
, 2004 In order to develop a laser system for multi-wavelength satellite laser ranging, the joint group of the Shanghai Astronomical Observatory and the Czech Technical University has studied the conversion efficiency of the Raman-shifting beam and its spatial ...
Hamal, K +5 more
core +1 more source
Cloud Detection and Centroid Extraction of Laser Footprint Image of GF-7 Satellite Laser Altimetry [PDF]
Journal of Geodesy and Geoinformation Science, 2021 The laser altimeter loaded on the GaoFen-7(GF-7) satellite is designed to record the full waveform data and footprint image, which can obtain high-precision elevation control points for stereo image.
Jiaqi YAO,Guoyuan LI,Jiyi CHEN,Genghua HUANG,Xiongdan YANG,Shuaitai ZHANG
doaj +1 more source
Optical High-Capacity Satellite Downlinks via High-Altitude Platform Relays [PDF]
, 2007 Earth-observation (EO) satellite missions produce a large amount of data using high-resolution optical or radar sensors. During the last decades the amount of data has steadily increased due to improved sensor technologies with increased temporal ...
Florian Moll +13 more
core +1 more source
Comparison of Integrating GF-7 and ICESat-2 Laser Altimetry Data with High-resolution Stereo Images for Stereo Mapping [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information SciencesCurrently, two types of satellite laser altimetry systems are in operation: the full waveform linear system and the single-photon-counting system, which exhibit significant differences in both data format and processing methodologies.
J. Chen, G. Li, J. Guo, J. Peng, J. Peng
doaj +1 more source
地球与行星物理论评, 2023 Remote sensing satellite SiCH-2 from Ukraine was launched in 2011. At present, it has stopped working and is out of control, and it has been forecasted to become space debris by a two-line root (TLE) from the North American Air Defense Command (NORAD ...
Mingliang Long +6 more
doaj +1 more source