Telegraphy – Systems – Simplex-reversing periodic
Patent
1974-01-28
1976-08-10
Britton, Howard W.
Telegraphy
Systems
Simplex-reversing periodic
178DIG20, 178DIG21, 178DIG33, 250203CT, 244 317, 343 5MM, F41G 700, H04N 718
Patent
active
039743284
ABSTRACT:
An area signature detection system arranged to receive an output from a sensor operative in the electromagnetic spectrum, where the output from the sensor is an amplitude varying electrical signal representing the field-of-view beheld by the sensor, and to utilize this high frequency information in such a manner that low frequency scene content, necessary for area correlation processing, can be extracted and effectively utilized. Our invention involves certain highly advantageous techniques for generating area signatures from line scan sensors, and may be applied to cartesian, circular or polar scan formats. In one particular embodiment of our invention, we describe how orthogonally disposed area signatures can be used to generate area correlation tracking signals that can be used in the derivation of appropriate missile guidance commands. Our teachings are also useful in providing line-of-sight stabilization for fire control systems, alignment and position errors for landing and hovering control systems, as well as intrusion detection systems. In the case of a system using a television camera as the sensor, this invention provides a way of obtaining an operator display and system control signals despite the fact that only a single such sensor is used.
REFERENCES:
patent: 3184542 (1965-05-01), Horsley
patent: 3209352 (1965-09-01), Buck et al.
patent: 3328795 (1967-06-01), Hallmark
patent: 3493877 (1970-02-01), Jacobson
patent: 3591715 (1971-07-01), Rubin
patent: 3593286 (1971-07-01), Altman
patent: 3603729 (1971-09-01), Sperber
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patent: 3614035 (1971-10-01), Buynak
patent: 3707598 (1972-12-01), Scarborough
patent: 3794272 (1974-02-01), Hecker
Farrow Max W.
Thomas Frank J.
Britton Howard W.
Martin Marietta Corporation
Masinick Michael A.
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