초록 ▼

A tank gun sighting system in which there is a visual sight having a boresight mark permanently aligned with the gun and in which an electronic aiming mark is superimposed on the visual target scene. The aiming mark is controllable by the gunner with effectively zero inertia and can be laid on the t

A tank gun sighting system in which there is a visual sight having a boresight mark permanently aligned with the gun and in which an electronic aiming mark is superimposed on the visual target scene. The aiming mark is controllable by the gunner with effectively zero inertia and can be laid on the target very quickly. The gun control equipment is directed by a signal which is the difference between the aiming mark off-boresight signal and the gun movement signal derived from a rate gyro in the gun control loop. The aiming mark is thus stabilized on the target scene, and in particular on the target, as the gun slews round to reduce the boresight/aiming mark error. An aim-off signal is calculated and added in to the gun control to lay the gun at the required angle off the aiming mark.

대표청구항 ▼

A sight system for a stabilised gun, the sight system including a boresight mark for permanent alignment with the gun boresight, means for injecting an electronically generated aiming mark into the sight, manually operable means for producing a demand signal designating required movement of the aimi

A sight system for a stabilised gun, the sight system including a boresight mark for permanent alignment with the gun boresight, means for injecting an electronically generated aiming mark into the sight, manually operable means for producing a demand signal designating required movement of the aiming mark with respect to the boresight, and means for subtracting from said demand signal a gun movement signal, the arrangement being such that the aiming mark is controlled with respect to the target scene in accordance with the demand signal and irrespective of the rate of gun movement.