Accession Number : ADD011607

Title :   Optical Non-Line-of-Sight Covert, Secure High Data Communication System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Geller,M ; Keenan,T E ; Altman,D E ; Patterson,R H

Report Date : 08 Jan 1985

Pagination or Media Count : 7

Abstract : An omnidirectional non-line-of-sight communication capability is assured by transmission and reception in the solar blind ultraviolet spectrum. An omnidirectional ultraviolet source generates a UV carrier in the tens of watts power range. This is modulated and received by having a sensitivity to respond to scattered UV modulated energy. Pulse modulating the ultraviolet spectrum signal and providing appropriate logic circuitry associated with the wide field-of-view receiver reduces the values of bit error rate.

Descriptors :   *PATENTS, *OPTICAL COMMUNICATIONS, *DATA TRANSMISSION SYSTEMS, *ULTRAVIOLET EQUIPMENT, OMNIDIRECTIONAL, ULTRAVIOLET RADIATION, ELECTROMAGNETIC SCATTERING, ULTRAVIOLET DETECTORS, PULSE MODULATION, SECURE COMMUNICATIONS

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE