Method and apparatus for recognizing the start and motion of objects
First Claim
1. A system for recognizing the start and approach flight of a flying body, comprising ultraviolet responsive sensor means having an image sensing surface area for producing image information signals in response to a plume signature of said flying body, signal read-out means operatively connected to an output of said ultraviolet responsive sensor means for producing digital image signals from said image information signals, digital image signal processing and evaluating means including computer means and signal comparing means connected to said read-out means for producing useful signals from said digital image signals, by comprising said digital image information signals with stored signal patterns of known plume signature in the ultraviolet range, and means connected to said digital image signal processing and evaluating means for receiving said useful signals for further use thereof.
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Abstract
A recognition system for alarming and early warning against starting and approaching flying objects with an active engine evaluates the "plume signature" of such an engine. Image signal generating electro-optical sensors, which operate in a preselected spectral range, are combined with an image processing and evaluating arrangement for producing output signals that can initiate countermeasures semi-automatically or automatically after a threat analysis has established that a threat exists.
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Citations
24 Claims
- 1. A system for recognizing the start and approach flight of a flying body, comprising ultraviolet responsive sensor means having an image sensing surface area for producing image information signals in response to a plume signature of said flying body, signal read-out means operatively connected to an output of said ultraviolet responsive sensor means for producing digital image signals from said image information signals, digital image signal processing and evaluating means including computer means and signal comparing means connected to said read-out means for producing useful signals from said digital image signals, by comprising said digital image information signals with stored signal patterns of known plume signature in the ultraviolet range, and means connected to said digital image signal processing and evaluating means for receiving said useful signals for further use thereof.
Specification