Laser Interferometer Used for Satellite-Satellite Tracking: an On-Ground Methodological Demonstration [PDF]
, 2012 A Chinese satellite gravity mission called SAGM (Space Advanced Gravity Measurements) is now taken into consideration. To meet its designed requirement, the measurement precision of the laser ranging system used to measure the inter-satellite distance ...
李玉琼 +6 more
core +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Development Status and Trend of Space Optical Communication Technology
天地一体化信息网络, 2022 Based on the laser inter-satellite communication link to realize information transmission between diff erent satellite nodes in satellite constellation, it can solve the problems of slow data rate and limited frequency resources in traditional satellite ...
Shaowen LU +5 more
doaj +2 more sources
Remote Sensing, 2022 The GF-7 satellite is China’s first civil sub-meter resolution stereo mapping satellite, aiming at 1:10,000-scale mapping. To achieve this goal, apart from the stereo optical cameras that reach sub-meter resolution, the GF-7 satellite is equipped with a ...
Jiyi Chen +6 more
doaj +1 more source
On-Orbit Geometric Calibration and Accuracy Validation for Laser Footprint Cameras of GF-7 Satellite
Remote Sensing, 2022 The Gaofen-7 (GF-7) satellite uses a two-beam laser altimetry system in which each beam is equipped with a laser footprint camera (LFC) to provide geometric processing of the laser footprint images that assist in optical image stereo mapping.
Jiyi Chen +6 more
doaj +1 more source
Vulnerability of Satellite Quantum Key Distribution to Disruption from Ground-Based Lasers
Sensors, 2021 Satellite-mediated quantum key distribution (QKD) is set to become a critical technology for quantum-secure communication over long distances. While satellite QKD cannot be effectively eavesdropped, we show it can be disrupted (or ‘jammed’) with ...
David R. Gozzard +2 more
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Scaling of laser produced plasma UTA emission down to 3 nm for next generation lithography and short wavelength imaging [PDF]
, 2011 Presented at a poster session at Advances in X-Ray/EUV Optics and Components VI, Monday 22 August 2011, San Diego, California, USAAn engineering prototype high average power 13.5-nm source has been shipped to semiconductor facilities to permit the ...
Deirdre Kilbane +25 more
core +2 more sources
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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