Paper
27 May 2005 Digital optical tags for unattended ground sensor applications (Invited Paper)
Stephen P. Griggs, Martin B. Mark, Barry J. Feldman
Author Affiliations +
Abstract
The DARPA Dynamic Optical Tags (DOTs) program has as its goal the development of a low cost, small, robust, persistent, low probability of intercept, 2-way tagging, tracking, and locating device that also supports error free data rates in excess of 100 kbps and can be interrogated at ranges up to and beyond 1Km. The program has selected several promising candidates for this device and is in the process of evaluating individually their performance against predetermined milestones to ascertain whether the technology is feasible and the program should continue for further development. In all cases the candidate devices operate as retro-reflecting optical modulators. Upon interrogation by a laser at the correct wavelength and with the correct code, the tags will proceed to modulate the return retro-reflection. While data for the candidate devices are not yet in hand, nevertheless this paper will provide an overview of the nature of the devices under investigation and speculate on how these devices could be employed for unattended ground sensor applications.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Stephen P. Griggs, Martin B. Mark, and Barry J. Feldman "Digital optical tags for unattended ground sensor applications (Invited Paper)", Proc. SPIE 5796, Unattended Ground Sensor Technologies and Applications VII, (27 May 2005); https://doi.org/10.1117/12.606521
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KEYWORDS
Modulation

Modulators

Sensors

Unattended ground sensors

Fabry–Perot interferometers

Phase shift keying

Signal detection

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