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2. Stabilizational Tracking Technology for Atmospheric Laser Communication System

Author

姜会林 Jiang Huilin, 佟首峰 Tong Shoufeng, and 刘云清 Liu Yunqing

Subjects
Tracking error, Physics, Optics, Mathematical model, business.industry, Angle of arrival, Detector, Sensitivity (control systems), Tracking (particle physics), business, Atomic and Molecular Physics, and Optics, Beam (structure), Free-space optical communication
Abstract

Aiming at stabilizational tracking technology for atmospheric laser communication system,sensitivity characteristics of the beam position detectors(CCD and QD) were analyzed.Five kinds of turbulence effects such as beam wander,intensity fluctuations,dispersed spot,angle of arrival fluctuation and beam spreading for tracking precision and their mathematical models were discussed.Then,simulation results of turbulence effects under various conditions were analyzed.Both the theoretical analysis and the experimental results show that tracking error of shape center capturing algorithms is less than tracking error of centroid localization algorithm.

Published
2011

3. Test Method of Optoelectronic Parameters of CMOS Camera

Author

董岩 Dong Yan, 李洪博 Li Hongbo, 刘云清 Liu Yunqing, and 宋延嵩 Song Yansong

Subjects
CMOS sensor, business.industry, Computer science, Optoelectronics, Test method, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics
Published
2018

5. Line-of-Sight Initial Alignment Model and Test in Dynamic Space Laser Communication

Author

刘云清 Liu Yunqing, 赵馨 Zhao Xin, and 佟首峰 Tong Shoufeng

Subjects
Line-of-sight, Optics, Computer science, business.industry, Computer vision, Artificial intelligence, Electrical and Electronic Engineering, Space (mathematics), business, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Free-space optical communication, Test (assessment)
Published
2014

6. Affecting Factor for Detection Accuracy of Four-Quadrant Detector

Author

张雷 Zhang Lei, 张国玉 Zhang Guoyu, and 刘云清 Liu Yunqing

Subjects
Factor (chord), Quadrant (abdomen), Optics, business.industry, Computer science, Detector, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2012

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