Results 1 to 10 of about 101,917 (161)

Feasibility of Laser Communication Beacon Light Compressed Sensing [PDF]

Sensors, 2020
The Compressed Sensing (CS) camera can compress images in real time without consuming computing resources. Applying CS theory in the Laser Communication (LC) system can minimize the assumed transmission bandwidth (normally from a satellite to a ground ...
Zhen Wang, Shijie Gao, Lei Sheng
doaj   +2 more sources

Disturbance Observer-Based Model Predictive Control for Multi-Frequency Interference Suppression in Space Laser Communication Systems [PDF]

Sensors
High-precision beam pointing control is essential for achieving reliable data transmission in space laser communication systems, requiring effective suppression of multi-frequency disturbance-induced tracking residuals.
Yang Chen, Mochi Tan, Lin Ge, Yaoyuan Zhang, Feng Qin, Long Chen, Siyuan Yu   +6 more
doaj   +2 more sources

High-Precision Calibration Technology and Experimental Verification for Dual-Axis Laser Communication Systems [PDF]

Sensors
With the continuous improvement of remote sensing satellite resolution, laser communication technology has gained significant traction. The pointing accuracy of ground-based laser communication terminals is critical for the stability of satellite–ground ...
Wenyan Li, Xiaolei Zhang, Lei Zhang, Xiang Wei, Guoxi Luo, Peng Zhang, Zhipeng Xue   +6 more
doaj   +2 more sources

An Imaging System with Robust Spot Detection for Space Laser Communication ATP Systems [PDF]

Sensors
To overcome the bandwidth and power limitations of traditional multi-chip architectures in inter-satellite laser communication ATP (Acquisition, Tracking, and Pointing) systems, we propose a highly integrated hardware-software co-design imaging system ...
Zhihong Liu, Qiang Yan, Zihao Li, Junshe An   +3 more
doaj   +2 more sources

Research on Integrated Technologies for Space Target Imaging, Ranging, and Communication [PDF]

Journal of Imaging
The integration requirements of laser ranging, imaging, and communication functions in space target detection have placed higher demands on system performance.
Xiansong Gu, Qiang Fu, Zhuang Liu, Guan Wang, Hairui Wang, Chao Wang, Tianshu Wang, Yingchao Li, Huilin Jiang   +8 more
doaj   +2 more sources

Theory of AdaDelSPGD Algorithm in Fiber Laser-Phased Array Multiplex Communication Systems

Applied Sciences, 2022
Stochastic parallel gradient descent (SPGD) algorithm is one of the most promising methods for effective coherent beam combination. However, the algorithm also has some disadvantages, such as slow convergence speed and local extremum. This paper proposes
Jiayu Chen, Jinsheng Liu, Long Han, Mingru Ci, Dongbo Che, Lihong Guo, Hongjun Yu   +6 more
doaj   +3 more sources

Beam Scanning and Capture of Micro Laser Communication Terminal Based on MEMS Micromirrors. [PDF]

Micromachines (Basel), 2023
Wang X, Han J, Wang C, Xie M, Liu P, Cao Y, Jing F, Wang F, Su Y, Meng X.   +9 more
europepmc   +2 more sources

Video Communication of 1 km 2.5 Gbit/s Bidirectional Laser Bridge

Guangtongxin yanjiu, 2021
Aiming at the problem of long-distance laser receiving and alignment, a laser bridge system using large area avalanche photo diode is proposed in this paper, which can be used as the extension of Wide Area Network (WAN) and the connection between Local ...
Yu-tong ZHANG, Jiang-nan ZHAO, Yong AI, He-xi LIANG, Ren-jie HU   +4 more
doaj   +1 more source

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, Zhu Xiaopeng, Fan Chunhui, Bi Decang, Liu Jiqiao, Zhang Xin, Zhu Xiaolei, Chen Weibiao   +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, Junqi Yang, Bingyan Wu, Bin Lu, Luwei Shuai, Zhaoyong Wang, Lei Ye, Kang Ying, Qing Ye, Ronghui Qu, Haiwen Cai   +10 more
doaj   +1 more source