Multi-element double ring detector for dual band infrared counter-countermeasure

A multi-element double ring detector which can track a target effectively under infrared (IR) countermeasure conditions is presented. Dual band IR counter-countermeasures can be performed by the detector to distinguish the target from target-flare mixed signals. Middle and short IR wavelengths are u...

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Bibliographic Details
Published in:Applied optics (2004) 2014-06, Vol.53 (17), p.3753-3757
Main Authors: Li, Mo, Sun, Weiguo, Zhang, Liang, Zhu, Xubo
Format: Article
Language:English
Subjects:
Countermeasures
Infrared
Infrared radiation
Military technology
Spots
Target tracking
Tracking (position)
Wavelengths
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Description
Summary:A multi-element double ring detector which can track a target effectively under infrared (IR) countermeasure conditions is presented. Dual band IR counter-countermeasures can be performed by the detector to distinguish the target from target-flare mixed signals. Middle and short IR wavelengths are used for target and IR countermeasure detection, respectively. With a special design, unique dual band signals will be outputted by the detector when a target spot is located on the center of the detector. By comparison, the typical single element ring detector has a "dead spot" in this case, which is undesirable for target identification. Relatively high tracking accuracy and low cost indicate that the presented method has a potential application.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.53.003753