Results 31 to 40 of about 18,581 (162)

Acquisition Time in Laser Inter-Satellite Link Under Satellite Vibrations

IEEE Photonics Journal, 2023
Pointing, acquisition, and tracking (PAT) is a major technical challenge of laser inter-satellite links (ISLs). For the fast establishment of laser link and the maximization of communication time, it is of importance to minimize the acquisition time.
Kwanyong Lee, Vuong Mai, Hoon Kim
openaire   +4 more sources

Research on the Control Point Extraction Method of Chinese Gaofen 7 Satellite Using Altimeter and Footprint Camera [PDF]

EPJ Web of Conferences, 2020
Satellite laser altimetry is one of the most advanced information acquisition technologies in Earth observation system. It can provide high-accuracy elevation information, however, due to the lack of detail intensity information, its planimetric accuracy
Li Binbin, Xie Huan, Tong Xiaohua, Cai Yinqiao, Zhang Zhijie   +4 more
doaj   +1 more source

Satellite-based laser windsounder [PDF]

, 1997
This is the final report of a one-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The project`s primary objective is to determine the technical feasibility of using satellite-based laser wind sensing systems for detailed study of winds, aerosols, and particulates around and downstream of ...
Schultz, John F., Czuchlewski, Stephen J., Quick, Charles R.   +2 more
openaire   +2 more sources

LARES, laser relativity satellite [PDF]

, 2011
After almost three decades since the first idea of launching a passive satellite to measure gravitomagnetism, launch of LARES satellite is approaching. The new developed VEGA launcher will carry LARES in a nominally circular orbit at 1450 km altitude. This satellite, along with the two LAGEOS satellites, will allow to improve a previous measurement of ...
I. Ciufolini, PAOLOZZI, Antonio, E. Pavlis, R. Koenig, J. Ries, R. Matzner, R. Neubert, D. Rubincam, D. Arnold, V. Slabinski, SINDONI, GIAMPIERO, PARIS, Claudio, RAMICONI, MARCELLO, D. Spano, VENDITTOZZI, CRISTIAN, H. Neumayer   +15 more
openaire   +5 more sources

Forest stand height predicted from ICESat-2 ATLAS data for forest inventory and comparison to airborne laser scanning metrics

Metsanduslikud Uurimused
The study analysed 2019–2022 summertime canopy height predictions (HICESat) given in ICESat-2 ATLAS dataset ATL08 for hemiboreal forests growing on an area of 40,000 km2 in Estonia around 25.6° E, 58.8° N. In total 12,711 ATL08 20×20 m pixel observations
Lang Mait, Tampuu Tauri, Trofimov Heido
doaj   +1 more source

Overview of the GF‐7 Laser Altimeter System Mission

Earth and Space Science, 2020
The Gao Fen 7 (GF‐7) satellite is China's first submeter, high‐resolution Earth observation and remote sensing satellite for natural resource monitoring, land surveying, and other industrial applications in China.
Xinming Tang, Junfeng Xie, Ren Liu, Genghua Huang, Chenguang Zhao, Ying Zhen, Hongzhao Tang, Xianhui Dou   +7 more
doaj   +1 more source

High-Precision Rayleigh Doppler Lidar with Fiber Solid-State Cascade Amplified High-Power Single-Frequency Laser for Wind Measurement

Remote Sensing
We introduce a novel Rayleigh Doppler lidar (RDLD) system that utilizes a high-power single-frequency laser with over 60 W average output power, achieved through fiber solid-state cascade amplification.
Bin Yang, Lingbing Bu, Cong Huang, Zhiqiang Tan, Zhongyu Hu, Shijiang Shu, Chen Deng, Binbin Li, Jianyong Ding, Guangli Yu, Yungang Wang, Cong Wang, Weixia Lin, Weiguo Zong   +13 more
doaj   +1 more source

Lasers for Satellite Uplinks and Downlinks

Sci, 2021
The use of Light Amplification by Stimulated Emission of Radiation (i.e., LASERs or lasers) by the U.S. Department of Defense is not new and includes laser weapons guidance, laser-aided measurements, and even lasers as weapons (e.g., Airborne Laser ...
Mark Dmytryszyn, Matthew Crook, Timothy Sands   +2 more
doaj   +1 more source

Airborne blue lidar reveals the ocean’s hidden biological engine in the South China Sea

Communications Earth & Environment
The ocean’s biological carbon pump, a critical climate regulator, is driven by phytoplankton ecosystems hidden from satellites. This observational blind spot has left the dynamics of the crucial subsurface chlorophyll maximum layer—a key engine of ocean ...
Chen Peng, Cédric Jamet, Paolo Di Girolamo, Davide Dionisi, Xinye Li, Siqi Zhang, Zhenhua Zhang, Weibiao Chen, Yan He, Kun Shi, Delu Pan   +10 more
doaj   +1 more source

Satellite Downlink Coherent Laser Communications

, 2016
Peer ...
Belmonte Molina, Aniceto, Kahn, J. M.
openaire   +3 more sources