Abstract: An infrared moving object detection system comprising first and second inred detectors and an optical scanning system mounted in an aircraft for scanning along first and second paths on the ground, with the detectors receiving infrared radiation from objects in the two paths. One path is a small angle ahead of the aircraft, and the second path is the same as the first path when the aircraft is directly above it. Electronic circuit means compares the infrared information in the two paths to determine whether "hot" objects are in the same place in both paths, and, if they are not, it is known that one or more objects are moving objects.

Abstract: An electro-optical system for weapons training, consisting of a low-power e-safe laser beam simulating the weapon's fire, a realistic moving target scene projected by a moving picture projector or slide projector onto a screen, a laser beam hit detector based upon a second projector, and a display board for displaying the hits and attempts of each trainee. Multi-station operation is accomplished by a digitally multiplexed time sharing system which allows each laser beam to fire only during a discrete time interval regulated by encoder pulses transmitted by radio. The laser beam detector is synchronized with the film of the target projector and acts as an annotated mask, this mask being opaque except for transparent areas corresponding to the target areas projected by the projector. A properly aimed laser beam will pass through the transparent area of the mask and be counted as a hit by the hit detector.