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

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

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.

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.

scholarly journals Feasibility of Laser Communication Beacon Light Compressed Sensing

Sensors ◽  
2020 ◽  
Vol 20 (24) ◽  
pp. 7257
Author(s):  
Zhen Wang ◽  
Shijie Gao ◽  
Lei Sheng
Keyword(s):  
Compressed Sensing ◽  
Real Time ◽  
Light Spot ◽  
Laser Communication ◽  
Storage Space ◽  
Measurement Matrix ◽  
Image Storage ◽  
Information Preservation ◽  
Ground Station ◽  
Spot Image

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 station) and minimize the storage costs of beacon light-spot images; this can save more than ten times the typical bandwidth or storage space. However, the CS compressive process affects the light-spot tracking and key parameters in the images. In this study, we quantitatively explored the feasibility of the CS technique to capture light-spots in LC systems. We redesigned the measurement matrix to adapt to the requirement of light-tracking. We established a succinct structured deep network, the Compressed Sensing Denoising Center Net (CSD-Center Net) for denoising tracking computation from compressed image information. A series of simulations was made to test the performance of information preservation in beacon light spot image storage. With the consideration of CS ratio and application scenarios, coupled with CSD-Center Net and standard centroid, CS can achieve the tracking function well. The information preserved in compressed information correlates with the CS ratio; higher CS ratio can preserve more details. In fact, when the data rate is up than 10%, the accuracy could meet the requirements what we need in most application scenarios.

Midle range Experiments of the Laser communication modules between nano-satellite and the ground station

2017 ◽  
Vol 2017 (0) ◽  
pp. S1920102
Author(s):  
Toshiki Nakamura ◽  
Motoharu Taketsu ◽  
Koji Kumura ◽  
Shin Satori ◽  
Tomonori Itoh ◽  
...  
Keyword(s):  
Laser Communication ◽  
Ground Station
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