Title :
Optical Scattering in Battlefield Obscurants: Analysis of Channel Spatial, Angular and Temporal Dispersion
Author :
Wu, Binbin ; Marchant, Brian ; Kavehrad, Mohsen
Author_Institution :
Center for Information & Communications Technology Research (CICTR), Department of Electrical Engineering, The Pennsylvania State University, University Park, PA 16802
Abstract :
Free-space optical communication (FSOC) is used to transmit a modulated beam of light through the atmosphere for broadband applications. In recent years, FSOC has played an increasingly important role in providing broadband wireless communications. Fundamental limitations of FSOC arise from the environment through which light propagates. The light signals (photons) transmitted through the battlefield environment will interact with particles of smoke, dust and sand along the propagation path. Photon-particle interaction causes dispersion of the light signals, which has significant effects on signal attenuation. This paper addresses transmitted light signal dispersion (spatial, angular and temporal dispersion) for FSOC operating in a battlefield environment. Correlation between spatial and angular dispersion of the received light signals is investigated. Based on the properties of correlation, for a fog oil type of medium, a receiver with a small field-of-view (FOV) is proposed to receive the communications signal.
Keywords :
Atmosphere; Broadband communication; Dispersion; Optical attenuators; Optical fiber communication; Optical modulation; Optical propagation; Optical scattering; Petroleum; Wireless communication;
Conference_Titel :
Military Communications Conference, 2007. MILCOM 2007. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
978-1-4244-1513-7
Electronic_ISBN :
978-1-4244-1513-7
DOI :
10.1109/MILCOM.2007.4454866
