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Class 244/3.17 - Optical correlation


Subclass of Class 244 - Aeronautics and astronautics
Definition: Subject matter in which the light rays are compared with
No. of patents: 92
Last issue date: 09/16/2008


    3  
NumberTitleIssue Date
4490849Correlation plane recognition processor
An automatic processing circuit is associated with an optical matched filter system which supplies correlation imagery representing the products of diffraction patterns of known objects with that of an input scene in which the known objects are to be dete...
12/25/1984
4476494Apparatus for centering and stabilizing the size of a target image
A stabilized image of a scene is provided by scanning the scene with a camera to provide pixels representative of the scene, providing individual representations of the pixels during each scan of the camera as digital words identifying an elevation addres...
10/09/1984
4456862Augmented proportional navigation in second order predictive scheme
A method for augmenting a noise-adaptive predictive proportional navigation terminal guidance scheme. In a second order configuration with noise adaptive varying gain parameters calculated as a function of time-to-go, this system implements an optimal con...
06/26/1984
4277137Coherent optical correlator
Reference scenes stored in a filter set containing an array of sets of suimposed, holographic, matched filters are optically correlated with input images displayed on an optically-addressed, liquid crystal, light modulator 34. In operation, a selected la...
07/07/1981
4162775Tracking and/or guidance systems
The invention relates to a system for tracking and/or guidance of a vehicle or projectile using a correlation arrangement for comparing representations from a sensor mounted on the vehicle or projectile with a reference representation, the correlation bei...
07/31/1979
4106726Prestored area correlation tracker
A novel prestored area correlation tracker comprising multiple concentric field of view apparatus in combination with apparatus for memorizing multiple digital representations of a target scene and logic apparatus to utilize such representations for the p...
08/15/1978
4018405Vehicle guidance control link utilizing light beam
An electromagnetic beam which is preferably generated by means of a laser is transmitted to a vehicle such as a missile to be controlled, and reflected back from such vehicle by means of an optical reflector. The beam is passed through separate optical mo...
04/19/1977
3986682IBIS guidance and control system
A guidance system for automatically boresighting a small field-of-view, lresolution image, sensed by an infrared missile imaging sensor, to a large field-of-view, high-resolution image, sensed by an imaging sensor located within an airplane. The image se...
10/19/1976
3974328Line scan area signature detection system
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 t...
08/10/1976
3955046Improvements relating to automatic target following apparatus
3. Automatic target following apparatus comprising A. sensing means for deriving a video signal representing a target, B. means for storing signal elements from a frame of said video signal, C. means for comparing signal elements from a subsequent frame of said vid...
05/04/1976
3943277Digital memory area correlation tracker
A digital tracker which provides a continuous display of the area tracked mprising a delay line coupled in circuit with a comparator, a video digitizer and a sensor. The digital tracker further comprises circuit means connected between the delay line and ...
03/09/1976
3942447Fuzing system
A fuzing system in which a third or obscuration channel having a forward king narrow beam width detects a target and generates a signal which is fed to a sequence computer. If within a predetermined time after receipt of the third channel pulse, a second...
03/09/1976
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