Electronic area correlator with multiple input signals

Claim 1

An electronic area correlator device for determining the motion of one image obtained from error signals with respect to a similar reference image, comprising: a. A multiple line scanned sensor means for viewing a scene, b. an electronic image storage correlator tube having 1. a plurality of microchannel electron multipliers which are modulated by said multiple line scanned sensor means during select operation modes, 2. an electron source for feeding electrons to said microchannel electron multipliers which in turn emit electron beams, 3. storage means operable in separate ones of said select operation modes to have an electron charge reference pattern from said electron multipliers stored thereon, be erased, and be uniformly charged, 4. a four-quadrant collector means positioned to collect electrons which pass through said storage means; the number of electrons passing through said storage means and thus landing on various quadrants of said collector means being a function of any mismatch between an incoming signal image of a scene viewed by said multiple line scanned sensor means with respect to a stored reference pattern, c. an electronic feedback loop connected to receive signals from the four quadrants of said collector means and use said signals to adjust the electron beam of electrons from the microchannel electron multipliers to said storage means to correct for any mismatch between the incoming signal image and said stored reference pattern.