Experiment Layout of Space Laser Communication System Based on Adaptive Optical System

2011 ◽  
Vol 287-290 ◽  
pp. 3020-3023
Author(s):  
Shu Fan Wang ◽  
Xiao Tian Wang ◽  
Xiang Yang Zou ◽  
Yong Wen
Keyword(s):  
Adaptive Optics ◽  
Optical System ◽  
Communication System ◽  
Optical Design ◽  
Low Earth Orbit ◽  
Laser Communication ◽  
Adaptive Optical System ◽  
Ground Station ◽  
Design Software ◽  
Beam Transmission

Sixty-one unit adaptive optical system was used to analyze the influence of atmospheric turbulence on laser beam transmission in space laser communication system. From low earth orbit planet to ground station Laser communication system was estimated by means of optical design software. In addition, the compensation results, experimental phenomena and data based on adaptive optics were also analyzed in the paper.

Compensation Effects Analysis of Adaptive Optical System Based on Space Laser Communications

2011 ◽  
Vol 201-203 ◽  
pp. 495-498
Author(s):  
Hong Tao Zhang ◽  
Xu Hua Zhai
Keyword(s):  
Adaptive Optics ◽  
Optical System ◽  
Communication Systems ◽  
Optical Design ◽  
Low Earth Orbit ◽  
Laser Communication ◽  
Adaptive Optical System ◽  
Ground Station ◽  
Laser Communications ◽  
Atmosphere Turbulence

The effects of atmosphere turbulence on optical beams transmitting in space laser communication system were analyzed by using sixty-one units adaptive optical system in the paper. Laser communication systems from low earth orbit planet to ground station were imitated by way of optical design software. In addition, the compensating results, experimental phenomena and data based on adaptive optics were also analyzed.

Boundary parameters of adaptive optical system in satellite to ground coherent laser communication system

2014 ◽  
Vol 22 (5) ◽  
pp. 1204-1211 ◽  
Author(s):  
黄健 HUANG Jian ◽  
张鹏 ZHANG Peng ◽  
邓科 DENG Ke ◽  
蒋大钢 JIANG Da gang ◽  
幺周石 YAO Zhou shi
Keyword(s):  
Optical System ◽  
Communication System ◽  
Laser Communication ◽  
Adaptive Optical System

Conceptual design of the adaptive optics system for the laser communication relay demonstration ground station at Table Mountain

2013 ◽  
Author(s):  
Lewis C. Roberts ◽  
Norman A. Page ◽  
Rick S. Burruss ◽  
Tuan N. Truong ◽  
Sharon Dew ◽  
...  
Keyword(s):  
Conceptual Design ◽  
Adaptive Optics ◽  
Laser Communication ◽  
Ground Station ◽  
Table Mountain ◽  
Adaptive Optics System

Adaptive optics for satellite-to-ground laser communication at the 1m Telescope of the ESA Optical Ground Station, Tenerife, Spain

2010 ◽  
Author(s):  
Thomas Berkefeld ◽  
Dirk Soltau ◽  
Reinhard Czichy ◽  
Edgar Fischer ◽  
Bernhard Wandernoth ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Laser Communication ◽  
Ground Station

Adaptive Optics at the Anglo-Australian Telescope

1995 ◽  
Vol 12 (1) ◽  
pp. 106-116 ◽  
Author(s):  
J. W. O’Byrne ◽  
J. J. Bryant ◽  
R. A. Minard ◽  
P. W. Fekete ◽  
L. E. Cram
Keyword(s):  
Image Quality ◽  
Adaptive Optics ◽  
Optical System ◽  
Mirror System ◽  
Deformable Mirror ◽  
The West ◽  
Adaptive Optical System ◽  
Second Stage ◽  
Australian Universities ◽  
Low Order

AbstractA consortium of Australian universities and the Anglo-Australian Observatory is currently implementing an adaptive optical system at the Anglo-Australian Telescope. This project aims to enhance the science output of the telescope and establish the utility of adaptive optics at the AAT site. The first stage of the project is a fast tip-tilt system, described here, to be installed in the west coudé room. Subsequent funding has been obtained to implement a second-stage, low-order deformable mirror system which is also outlined. Both phases will primarily serve the IRIS camera/spectrograph, since the maximum gains in image quality will occur in the infrared.

Design of Backward-Detection Optical System in Biological Cell Subclass Identification

2011 ◽  
Vol 181-182 ◽  
pp. 220-224
Author(s):  
Ya Wei Wang ◽  
Shou Wang Jiang ◽  
Xian Kai Wang ◽  
Xiang Long Tian ◽  
Qu Wei Yue ◽  
...  
Keyword(s):  
Optical System ◽  
Classification Accuracy ◽  
Optical Design ◽  
Stray Light ◽  
Design Parameters ◽  
Biological Cell ◽  
Signal Collection ◽  
Design Software ◽  
Scattering Signal ◽  
Scatter Light

In order to improve the classification accuracy of cell subsets, a telecentric system which is based on the characteristics of cell’s scattering is designed. The irradiating and receiving light work collinearly in this system, and the optical receiving efficiency of back scatter light increases to twice the origin by using a special mirror. The optical design parameters and structures are given by using aberration theories and optical design software. The performance and signal collection of the optical system are analysised. When the resolution is 100lp/mm, the MTF is more than 0.17. The stray light is effectively filtered out and the accuracy of scattering signal is improved. The optical system can be used to identify eukocyte.

Simplest Flow Queuing Models for LEO Satellite System

2022 ◽  
pp. 61-70
Author(s):  
S.B. Pichugin
Keyword(s):  
Communication System ◽  
Communication Systems ◽  
Satellite System ◽  
Low Earth Orbit ◽  
Analytical Models ◽  
Mathematical Apparatus ◽  
Satellite Systems ◽  
Ground Station ◽  
Queuing Models ◽  
Leo Satellite

The relevance of the work is associated with the active deployment of low-orbit communication systems and the expansion of research in the field of corresponding satellite systems. A promising low-orbit communication system based on relay satellites with the function (RSRFs) of routing message packets is considered. The low earth orbit communications systems use the BGP protocol and the AAA functionality at the ground station. For assessing the characteristics of RSRF inter-satellite paths, a scenario was created for the message packets arrival from a group of inter-satellite paths to one subscriber path. The corresponding analytical models have been developed using the mathematical apparatus of queuing systems with the simplest flows of requests and exponential distribution of the service time. The RSRF characteristics of a promising low-orbit communication system are predicted. It is proposed to make the mathematical apparatus of analytical models more complicated to take into account the dynamics of displacements and failures of the RSRF in a low-orbit communication system.

Testing Technology of Adaptive Optics in Atmospheric Laser Communication

2014 ◽  
Vol 602-605 ◽  
pp. 1976-1979
Author(s):  
Yin Huan Wang ◽  
Shou Feng Tong ◽  
Lei Zhang ◽  
Li Ming Dai
Keyword(s):  
Adaptive Optics ◽  
Optical Communication ◽  
Communication System ◽  
Light Transmission ◽  
Laser Communication ◽  
Optical Communication System ◽  
Test Bed ◽  
Communication Performance ◽  
Communication System Performance ◽  
Primary Means

Adaptive optics (AO) is the primary means of improving the light transmission quality and easing the optical turbulence in communication. In laser intensity/direct demodulation (IM/DD) optical communication system, the function of AO correction for improving the optical communication performance is analyzed, adaptive optics (AO) compensating effects of atmospheric turbulence is studied by simulation and experiment in our adaptive optics system test bed. And 2.5 GB/s optical communication system performance is improved by AO compensating effects. So signal noise rate (SNR) and bit error rate (BER) of laser communication are improved.

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