Air-ground radar telemetry apparatus for airborne fire-control system and use of such apparatus in a fire control system

摘要

1. An air-to-ground radar device for an airborne firing control system comprising a range-measuring impulse radar including a movable antenna (1) and means (7) for driving the antenna, a transceiver (2) connected to said antenna, comprising means for angularly measuring the direction of the axis of the antenna and the direction of a target located on the ground with respect to a view-finder and delivering instantaneous range-measuring video signal signal (DELTA S), said telemetric radar device further comprising a remote target following loop including, in succession, sampling means (3) for sampling by means of a remote following instantaneous range-measuring signals, wide-band filtering means (4) for filtering the sampled signals, integrating means (15) and triggering means (6) for triggering the distant range-measuring video signal sampling means, characterized in that said device further comprises, on the one hand, control means (8) for controlling the aiming and maintaining the axis of the antenna toward the target through the intermediary of the antenna driving means, from a reference moment to at which the direction of the antenna axis coincides with the direction of the target as located with respect to the view-finder and, on the other hand, computing means (10) for computing the radial speed of the target with respect to the airplane, said computing means delivering, during operation, to the integrating means (5) of the remote following loop a signal representing the radial speed of the target with respect to the airplane, from the said reference moment to.