Aim point correlator

Claim 2

For use in an electro-optical guidance system an aim poinT correlator comprising: a. a gunsight having cross-hairs for aligning a missile carrying aircraft on a target of interest, b. a multi-aperture image dissector, c. a partially silvered mirror positioned in said gunsight for reflecting the image viewed by said gunsight on to said multiaperture image dissector, d. circular scan circuit means coupled to said multi-aperture image dissector for producing a circular scan of the target image to produce output signals proportional to the light reflected from said target, e. comparison circuit means having a first input coupled to the output of said multi-aperture image dissector and a second input adapted to receive video signals from the seeker of a missile carried by said aircraft and producing output signals proportional to a mis-match of the target viewed by the gunsight and target viewed by the missile seeker, f. control circuit means coupled to said comparison circuit means for producing error signals which can be fed to the seeker circuits for aligning the seeker with the gunsight.

Claim 3

For use in an electro-optical guidance system an aim point correlator for correlating the image of a target as viewed by the gun-sight of an aircraft and the image of the target as viewed by the seeker of a missile to be launched against the target from the aircraft, the combination comprising: a. a multi-aperture dissector associated with said gunsight, b. circular scan circuit means coupled to said multi-aperture dissector for causing said dissector to scan the image of the target, and produce a reference video signal whose waveform depends on the scene being viewed at a given instant, c. scan centering circuit means for centering the circular scan on a point defined by the gunsight crosshairs, d. an input terminal for receiving video signals from seekers of missiles to be launched by the aircraft, e. comparator circuit means coupled to said multi-aperture dissector and to said input terminal for comparing the two video signals for producing a stop search signal when there is a match of the two video signals throughout a scan cycle and then producing aligning signals for keeping the seeker axis aligned with that of the center aperture of the gunsight dissector.

Claim 4

For use in an electro-optical guidance system an aim point correlator for correlating the image of a target as viewed by the gun-sight of an aircraft and the image of the target as viewed by the seeker of a missile to be launched against the target from the aircraft, the combination comprising: a. a multi-aperture dissector associated with said gunsight, b. circular scan circuit means coupled to said multi-aperture dissector for causing said dissector to scan the image of the target, and produce a reference video signal whose waveform depends on the scene being viewed at a given instant, c. scan centering circuit means for centering the circular scan on a point defined by the gunsight crosshairs, d. an input terminal for receiving video signals from seekers of missiles to be launched by the aircraft, e. comparator circuit means coupled to said multi-aperture dissector and to said input terminal for comparing the two video signals for producing a stop search signal when there is a match of the two video signals throughout a scan cycle and then producing aligning signals for keeping the seeker axis aligned with that of the center aperture of the gunsight dissector.