Results 1 to 10 of about 9,282,430 (299)
Blimp-Borne Laser Communication Technology Based on Space Dynamic Base Station
IEEE Photonics Journal, 2021 Space dynamic communication base stations are characterized by high mobility, flexible deployment and wide coverage. It has a wide range of needs in the fields of emergency communication, earthquake relief and island communication.
Tong Wang +7 more
doaj +3 more sources
Research on Integrated Technologies for Space Target Imaging, Ranging, and Communication [PDF]
Journal of ImagingThe integration requirements of laser ranging, imaging, and communication functions in space target detection have placed higher demands on system performance.
Xiansong Gu +8 more
doaj +2 more sources
High-speed free-space laser communication [PDF]
, 1998 The laser communication system proposed here for short-distance horizontal ground links and for the link between a ground station and a geostationary satellite will provide eye-safe and power-efficient communication by using a wavelength between 1.5 and 2.2 µm.
Norihisa Hiromoto, Yoshinori Arimoto
exaly +3 more sources
NASA Space Laser Communications System
Safety & Defense, 2020 Bidirectional space communication is a fundamental prerequisite for maintaining contact with objects performing missions in space, whether manned and unmanned.
Radosław Bielawski, Aleksandra Radomska
doaj +3 more sources
Field Performance of All-Fiber Pulsed Coherent Doppler Lidar [PDF]
EPJ Web of Conferences, 2020 Coherent Doppler lidar (CDL) has been a powerful instrument to measure atmospheric wind velocity. In this work, an 1.5 μm all-fiber pulsed CDL has been developed and deployed to measure wind profiles in campaign experiment in 2018.
Liu Heng +7 more
doaj +1 more source
High SNR Φ-OTDR with Multi-Transverse Modes Heterodyne Matched-Filtering Technology
Sensors, 2021 Phase-sensitive optical time domain reflectometer (Φ-OTDR) has attracted attention in scientific research and industry because of its distributed dynamic linear response to external disturbances.
Yifan Liu +10 more
doaj +1 more source
Remote Sensing, 2023 The efficacy of underwater laser detection is considerably impacted by the intense attenuation of light resulting from the scattering and absorption effects of water. In this study, we present the simulation and design of the underwater Lidar system that
Yongqiang Chen +8 more
doaj +1 more source
Monte Carlo Simulation with Experimental Research about Underwater Transmission and Imaging of Laser
Applied Sciences, 2022 Attenuation of the laser beam in underwater transmission and detection due to absorption and scattering results in a rapid reduction in energy and blurring of the image.
Shouchuan Guo +5 more
doaj +1 more source
Sensors, 2022 Over the last two decades, Geiger-mode lidar (GML) systems have been developing rapidly in defense and commercial applications, demonstrating high point density and great collection efficiency. We presented a circular scanning GML system simulation model
Fanghua Liu +7 more
doaj +1 more source
IEEE Photonics Journal, 2020 Phase-demodulated phase-sensitive time domain reflectometer (Φ-OTDR) has attracted much attention because of its linear relationship between the phase variation and the amplitude of the vibration.
Jinfeng Gu +7 more
doaj +1 more source