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

Author

Raj, A. Arockia Bazil ; Selvi, J. Arputha Vijaya ; Raghavan, S.

Author_Institution

ECE, Kings Coll. of Eng., Thanjavur, India

fYear

2010

fDate

2-4 Jan. 2010

Firstpage

1

Lastpage

5

Abstract

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.

Keywords

adaptive control; broadband networks; closed loop systems; field programmable gate arrays; laser beam applications; optical communication; optical links; FPGA; adaptive control steering; broadband access network; closed loop control configuration; field programmable gate array; laser beam aligning; laser beam positioning; laser beam tracking; laser power attenuation; line of sight optical communication; position sensing detector; stochastic parallel gradient descent algorithm; terrestrial free space optical communication; transmission security; Adaptive control; Bandwidth; Communication system security; Control systems; Field programmable gate arrays; Laser beams; Optical control; Optical fiber communication; Power system security; Steering systems; Free Space Optical Communication; Laser Beam Aligning; Tracking and Positioning;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communication and Sensor Computing, 2010. ICWCSC 2010. International Conference on

Conference_Location

Chennai

Print_ISBN

978-1-4244-5136-4

Electronic_ISBN

978-1-4244-5137-1

Type

conf

DOI

10.1109/ICWCSC.2010.5415900

Filename

5415900