Soldier Identification System utilizing low probability of intercept (LPI) techniques

This paper documents the design of a laser/radio frequency (RF) Soldier Identification (ID) System developed by Dynetics, Inc., Harris, Corp., and the US Army Communications and Electronics Command (CECOM). The Soldier ID system includes an Interrogation Unit with a programmable activation code. The...

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Bibliographic Details
Published in:IEEE aerospace and electronic systems magazine 1997-07, Vol.12 (7), p.21-26
Main Authors: Zari, M.C., Zwilling, A.F., Hess, D.A., Jo, J., Anderson, C.S., Chiang, D.
Format: Magazinearticle
Language:English
Subjects:
Fires
Hardware
Optical design
Optical modulation
Protection
Radio frequency
Radiofrequency identification
Spread spectrum communication
Testing
Transceivers
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Summary:This paper documents the design of a laser/radio frequency (RF) Soldier Identification (ID) System developed by Dynetics, Inc., Harris, Corp., and the US Army Communications and Electronics Command (CECOM). The Soldier ID system includes an Interrogation Unit with a programmable activation code. The Interrogation Unit consists of a directive, eye-safe laser and a spread-spectrum RF transceiver. This allows for a low probability of intercept (LPI) interrogation, which is of interest during covert operations. A Responder Unit is worn, for example, by a soldier and transmits an LPI spread-spectrum RF response, only after receiving the proper interrogation codes. The basic subsystems for the identification system are a Laser Interrogation Unit, an RF Responder Unit, and an electronic Programming Unit. The operating principles for the subsystem are reviewed, and the design issues are discussed. In addition to the preliminary design performed under Phase I of the program, a breadboard system was developed to validate the proof-of-principle concept. Hardware implementation is reviewed and test results are presented. The brassboard development and engineering plans are also presented.
ISSN:0885-8985
1557-959X
DOI:10.1109/62.596651