Aeronautics and astronautics – Missile stabilization or trajectory control – Automatic guidance
Patent
1976-02-09
1978-08-01
Pendegrass, Verlin R.
Aeronautics and astronautics
Missile stabilization or trajectory control
Automatic guidance
244 316, F42B 1502, F41G 900, F41G 700, F42B 1510
Patent
active
041038479
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 stablization for fire control systems, alignment and position errors for landing and hovering control systems, as well as intrusion detecting 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: 3372890 (1968-03-01), Bogard et al.
patent: 3416752 (1968-12-01), Hembree
patent: 3421716 (1969-01-01), Altekrose et al.
patent: 3712563 (1973-01-01), Alpers
Farrow Max W.
Thomas Frank J.
Chin Gay
Eisel James B.
Martin Marietta Corporation
Pendegrass Verlin R.
Renfro Julian C.
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