Electro-optical IFF system
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United States of America Patent
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-
Aug 25, 1992
Grant Date -
N/A
app pub date -
Dec 11, 1987
filing date -
Dec 11, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electro-optical IFF system easily integrable into existing laser systems uses a laser to illuminate a potential target platform. The potential target, if friendly, has apparatus for returning to the illuminating platform a return beam which has the same signature but is delayed with respect to the illuminating beam by a predetermined time interval. If the illuminating platform sees a return beam with the same signature in the proper time frame, an indication is generated that the target is friendly. A friendly target platform contains apparatus for comparing the signature of the illuminating beam to a stored reference signature, and for providing a friendly-illumination indication and activating the return beam only if the signatures match.
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