| 摘要 |
An embodiment of an optoelectronic apparatus for assisting an operator in determining the shooting attitude to give to a hand-held grenade launcher so as to strike a moving target including an electronic processing unit configured so as to: measure the pitch angle and the heading angle of the grenade launcher and the distance of the target when the grenade launcher is moved by the operator during the pointing of the moving target, determine position data indicative of the positions of the moving target, determine a future impact time of the grenade on the target on the basis of position data and of data indicative of the ballistics of the grenade, determine a shooting attitude of the target on the basis of the impact time, measure the pitch angle and heading angle indicating the attitude imparted to the grenade launcher by the operator, compute a pitch difference between the shooting pitch angle and the pitch angle measured and a heading difference between the shooting heading angle and the heading angle measured, communicate to the operator the variation of pitch and/or heading to be given to the grenade launcher so that the pitch and/or heading difference is zero. |
| 主权项 |
1. An optoelectronic digital apparatus for assisting an operator in determining the shooting attitude to be given to a hand-held grenade launcher so as to strike a moving target, through a grenade;
said apparatus comprising: measuring electronic means configured so as to measure the pitch angle and the heading angle indicative of the attitude of the grenade launcher, and the distance of the target from the hand-held grenade launcher; user interface means configured so as to receive an operator-assistance request at a first operative time, and communicate indications on the angles to cause the grenade launcher to strike a moving target; memory means containing ammunition-data indicative of the ballistic behavior of said grenade; environmental-data indicative of the environmental parameters; and precision-data indicative of the required impact precision; processing electronic means configured to:
measure, through said measuring electronic means, a plurality of pitch angles and heading angles taken in a sequence from the grenade launcher in a predetermined data sampling range, during which the operator moves the grenade launcher to maintain it pointed towards the moving target;measure, through said measuring electronic means, a plurality of distances taken in a sequence by the target from the grenade launcher during said data sampling range;determine a displacement mathematical function associated with the motion of the target, on the basis of the pitch angles of the heading angles and of the distances measured during said data sampling range;determine an ideal pitch angle and a theoretical impact time of the grenade on the target, through said displacement mathematical function and on the basis of the ammunition-data;determine, on the basis of said ideal pitch angle, ammunition-data, environmental-data and precision-data, a shooting attitude comprising a shooting pitch angle and a shooting heading angle to be given to the grenade launcher so that the grenade strikes the target at said impact time;measure, through said measuring electronic means, the actual pitch angle and the actual heading angle indicating the attitude given by the operator to the grenade launcher at said first operative time;compute a pitch difference between the shooting pitch angle and the actual pitch angle measured at said first operative time;compute a heading difference between the shooting heading pitch and the heading angle measured at said first operative time;communicate, through said user interface, data indicative of the variation of the pitch angle and/or of the heading angle which the operator must give to the grenade launcher so that the pitch difference and the heading difference measured at said first operative time is zero; said processing electronic means being also configured to:
determine an initial pitch angle through said displacement mathematical function on the basis of said ammunition-data and of said impact time;compute a trajectory of said grenade on the basis of said initial pitch angle and of said ammunition-data and of said environmental-data;vary said initial pitch angle until the corresponding trajectory of the grenade does not satisfy a convergence condition towards said target;assign, to said shooting pitch angle, the pitch angle corresponding to the trajectory of the grenade that satisfies said convergence condition.
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