Results 11 to 20 of about 18,581 (162)
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
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International Journal of Digital Earth, 2023 After being launched into orbit, the geometric calibration of a satellite laser altimeter will reduce errors in laser pointing and ranging caused by satellite vibrations during launch, environmental changes, and thermal effects during long-term operation,
Junfeng Xie +5 more
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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
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Beam Scanning and Capture of Micro Laser Communication Terminal Based on MEMS Micromirrors
Micromachines, 2023 With the development of space laser communication and the planned deployment of satellite Internet constellations, there is a growing demand for microminiature laser communication terminals.
Xuan Wang +9 more
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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
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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
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On-Axis Optical Bench for Laser Ranging Instruments in Future Gravity Missions
Sensors, 2022 The laser ranging interferometer onboard the Gravity Recovery and Climate Experiment Follow-On mission proved the feasibility of an interferometric sensor for inter-satellite length tracking with sub-nanometer precision, establishing an important ...
Yichao Yang +7 more
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Optical metrology terminal for satellite-to-satellite laser ranging [PDF]
International Conference on Space Optics — ICSO 2018, 2019 Interferometric laser ranging is an enabling technology for high-precision satellite-to-satellite tracking within the context of earth observation, gravitational wave detection, or formation flying. In orbit, the measurement system is affected by environmental influences, particularly satellite attitude jitter and temperature fluctuations, demanding an
Mandel, Oliver +5 more
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Design and analysis of the Macau Science Satellite-1’s laser retro-reflector array
Earth and Planetary Physics, 2023 The origin and spatial−temporal variation of the Earth’s magnetic field (EMF) is one of the important scientific problems that has long been unsolved.
ZhiEn Cheng +5 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 The GaoFen-7 (GF-7) satellite, which was launched on November 3, 2019, is China's first civilian submeter stereo mapping satellite. The satellite is equipped with the first laser altimeter officially in China for earth observation.
Junfeng Xie +11 more
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