Results 41 to 50 of about 18,581 (162)
Remote Sensing, 2021 Slope and roughness are basic geophysical properties of terrain surface, and also sources of error in satellite laser altimetry systems. The full-waveform satellite laser altimeter records the complete echo waveform backscattered from the target surface ...
Zhiqiang Zuo +5 more
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Applied Sciences, 2019 Acquisition, tracking, and pointing (ATP) is a key technology in free space laser communication that has a characteristically high precision. In this paper, we report the acquisition and tracking of low-Earth-orbit satellites using shipborne ATP and ...
Dong He +14 more
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Research on Application Technology of Satellite Laser Network
Guangtongxin yanjiu, 2023 With the rapid development of satellite internet, the shortage of bandwidth and spectrum resources has become increasingly prominent.Satellite laser communication has the characteristics of large bandwidth and no spectrum constraints, which makes it an ...
ZHANG De-peng, YU Yan, WANG Yue
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Key technologies implementation of high-repetition-rate satellite laser ranging
Geodesy and Geodynamics, 2013 Satellite laser ranging (SLR) is one of the major space geodetic instruments, which has various applications in earth science. In this paper, we introduce several issues regarding the key technology implementation of high-repetition-rate SLR system ...
Wang Peiyuan +6 more
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REFINED SIMULATION OF SATELLITE LASER ALTIMETER FULL ECHO WAVEFORM [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 The return waveform of satellite laser altimeter plays vital role in the satellite parameters designation, data processing and application. In this paper, a method of refined full waveform simulation is proposed based on the reflectivity of the ground ...
H. Men +8 more
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Satellite-Satellite Laser Links for Future Gravity Missions
Space Science Reviews, 2003 Abstract. A strong candidate for use in future missions to map time variations in the Earth’s gravity field is laser heterodyne measurements between separate spacecraft. At the shortest wavelengths that can be measured in space, the main accuracy limitation for variations in the potential with latitude is expected to be the frequency stability of the ...
Bender, P. L. +3 more
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Spaceborne Optical Switching Technology for Satellite Internet
天地一体化信息网络, 2022 With the increasing demands for ultra-high speed and large-capacity information transmission such as satellite remote sensing, big data super computing center, video battlefield and 6G mobile communication.The satellite laser communication technology ...
Jiacheng MENG +7 more
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, 2010 We applied Chu and Hogg’s key cloud attenuation results to Italsat observations (9) and cloud water analysis (11) to estimate worldwide laser attenuation for satellite- ground communication links. Section 3 gave worldwide zenith attenuation estimates for 80% availability, 90% availability, and 70% availability.
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Satellite Laser Ranging in Egypt
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
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天地一体化信息网络Satellite laser communication uses laser with shorter wavelength as the information carrier for data transmission, which can achieve a higher data transmission rate than RF communication.
YUAN Renzhi +6 more
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