ES252012A1 - Improvements relating to fire control apparatus - Google Patents

Abstract

Fire control instrument whose input connection is supplied with data in the form of polar coordinates indicating the position of a target, which has a coordinate converter that converts the polar coordinates into Cartesian coordinates, a unit of velocity that forms the velocities of the Cartesian coordinates, a calculator of the point of impact connected to the coordinate converter and the speed unit, whose calculator of the point of impact indicates in Cartesian coordinates the position of the point of impact, that is, the point at which the aforementioned collide target and an object directed in accordance with the fire control instrument, for example a projectile or "missile", and a second coordinate converter, connected to the impact point calculator and converting the supplied Cartesian coordinates to polar coordinates, whose coordinates include the output data of the fire control instrument, characterized in that the point of impact calculator consists of a known digital electronic calculator, for example of binary numbers, because the digital calculator program is planned in such a way that, based on the data transmitted from the first coordinate converter and from the unit of speed, and based on constants stored in the memory unit of the digital calculator, calculates the coordinates of four points in a coordinate system, one of whose axes indicates time and the other axis the distances of the target and object, respectively, to the original position of the object, the first point being formed by an arbitrarily chosen time obtained from the aforementioned memory unit and by the magnitude of the distance of the object from said original position calculated according to the program based on data from the first converter of coordinates and speed unit, and based on the mentioned time, the second point being formed by the distance lately less calculated and by the time calculated according to the program based on the last mentioned distance and the constants obtained in a known way from a table of ranges and stored in the aforementioned memory unit, the third point being formed by the calculated time, last mentioned, and by the calculated magnitude of the distance from the target to said original position according to the program based on data from the first coordinate converter and the speed unit and based on said time, and because the fourth point is formed by the distance lately mentioned and for the time calculated according to the program based on the last mentioned distance and the mentioned constants obtained from the scope table, and because the digital calculator program is planned in such a way that, based on the aforementioned four coordinates , calculates the coordinates of the intersection points of the diagonals between the aforementioned four points, and because, based on the coordinate Ada of times in the last-mentioned coordinates and the mentioned data from the first coordinate converter and the speed unit, calculates the Cartesian coordinates of the predicted point of impact. (Machine-translation by Google Translate, not legally binding)