GB1424299A - Method and apparatus for simulating a ballistic trajectory - Google Patents

Abstract

1424299 Method for the simulation of a shooting or projection process KRAUSSMAFFEI AG 6 June 1974 [2 Aug 1973] 25082/74 Heading F3C Method for the simulation of a shooting or projection process, with use of artificially generated flight path signals for the representation of the flight path of an imaginary missile over a terrain, wherein the measurement direction of a range finder E, Fig. 1, is controlled successively to individual loci Fi of the flight path and the measured value thereupon ascertained of the momentary distance of a reference point B from an object or terrain point Gi (measured distance BGi) situated in the measurement direction is compared with the measured value of the ideal distance, ascertained on the basis of the flight path signals, between momentary locus Fi of the flight path and the reference point B (ideal measured distance BFi) and the two measured values are processed into a momentary control signal for the ascertaining of the point of intersection A of the flight path with the terrain. In the X-Y-Z co-ordinate system shown, terrain G is arranged in relation to reference point B which represents the position of a marksman. The latter selects the type of missile and uses an aiming apparatus (not shown) to set the initial direction of flight path F, this being represented in the form of artificial flight path signals produced by a computer (not shown) for example. The range BFi between the reference point B and the respective locus Fi of the flight path F can constantly be ascertained. The range finder E is positioned relative to the reference point B. The measurement direction of the latter is orientated by a control appliance (not shown) to any desired loci Fi (F1, F2, for example) of the flight path F. The measurement direction beam of the range finder E is controlled to the relevant flight path locus Fi and the distance EGi from an object or terrain point Gi is measured and the distance BGi between point B and point Gi is determined. Inequality or equality between the distances BGi and BFi is ascertained and, if equality applies, a signal is generated to mark a represented intersection point A of flight path F, the surface of the terrain G and momentary measurement direction beam of the range finder E. It is advantageous if the point B and the range finder E and preferably the starting point S of the flight path F coincide as shown in Fig. 2. The measurement direction beam of the range finder E is pivoted in a vertical plane containing the flight path F and scans the terrain G along the track T in the direction of the chord BFi. The method can also be used in the case where a terrain elevation U, Fig. 3, obscures the view of the marksman from the last part of the flight path F before impact. The apparatus used by the method is represented by block circuit diagrams, Figs. 4a, 4b (not shown).