Terrestrial free space line of sight optical communication (TFSLSOC) using adaptive control steering system with laser beam Tracking, Aligning and Positioning (ATP)

Free space optical communication (FSOC) is the most promising approach for addressing the emerging broadband access network. Quick link setup, high transmission security, large bandwidth and light weight are some of the important features of this system. However, the laser power attenuation due to a...

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Bibliographic Details
Published in2010 International Conference on Wireless Communication and Sensor Computing (ICWCSC) pp. 1 - 5
Main Authors Raj, A., Arputha Vijaya Selvi, J., Raghavan, S.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.01.2010
Subjects
Adaptive control
Bandwidth
Communication system security
Control systems
Field programmable gate arrays
Free Space Optical Communication
Laser Beam Aligning
Laser beams
Optical control
Optical fiber communication
Power system security
Steering systems
Tracking and Positioning
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Summary:Free space optical communication (FSOC) is the most promising approach for addressing the emerging broadband access network. Quick link setup, high transmission security, large bandwidth and light weight are some of the important features of this system. However, the laser power attenuation due to adverse weather conditions and scattering due to turbulence are to be mitigated. In this paper, a position sensing detector (PSD) and stochastic parallel gradient descent algorithm (SPGDA) based control system using field programmable gate array (FPGA) in a closed loop control configuration (CLCC) are developed and presented for aligning, tracking and positioning (ATP) the laser beam to improve the performance of the FSOC.
ISBN:1424451361
9781424451364
DOI:10.1109/ICWCSC.2010.5415900