Method and device for compensating firing errors and system computer for weapon system

Abstract

A method and a device ( 20 ) are described for compensating firing errors of a gun having a weapon barrel ( 10.2 ). Firing errors, which are caused by static gun geometry errors, which influence the position of the weapon barrel ( 10.2 ) during aiming of the weapon barrel ( 10.2 ) at aiming values, are compensated. For this purpose, the weapon barrel ( 10.2 ) is brought into measurement positions in steps by rotation around an axis. Using suitable devices of a measurement facility, an intended value, which describes the intended position of the weapon barrel ( 10.2 ), and an actual value, which describes the actual position of the weapon barrel ( 10.2 ), are detected at each measurement position. A difference between the actual value and the intended value, defined as an error value, is then calculated. Correction values are established from multiple error values of the measurement positions and the correction values are taken into consideration during later aiming of the weapon barrel ( 10.2 ). The method and the device ( 20 ) are used for a weapon system ( 10 ) which has a system computer ( 10.4 ) for calculating aiming values for aiming a weapon barrel ( 10.2 ) of a gun ( 10.1 ) of the weapon system ( 10 ); the system computer ( 10.4 ) has a data input ( 24 ) for data which is made available, this data being intended for the purpose of being taken into consideration during the calculation of the aiming values, in order to compensate aiming errors, which are caused by static gun geometry errors and which influence the position of the weapon barrel ( 10.2 ).

What is claimed is:  
     
         1 . A method for compensating firing errors of a gun having a weapon barrel, caused by static gun geometry errors, which influence the position of the weapon barrel during aiming of the weapon barrel at aiming values, 
 the weapon barrel is brought into measurement positions in steps by rotation around an axis,    at each measurement position 
 an intended value, which describes the intended position of the weapon barrel, and  
 an actual value, which describes the actual position of the weapon barrel, are detected,  
 a difference between the actual value and the intended value, defined as an error value, is calculated,  
   correction values are established from multiple error values and    the correction values are taken into consideration during later aiming of the weapon barrel.    
     
     
         2 . The method according to  claim 1 ,  
       characterized in that, to establish the correction values, 
 the correction values are represented empirically,  
 the empirically represented error values are approximated by a mathematical error function, and  
 the correction values, which are taken into consideration during a later calculation of the aiming values for the weapon barrel, are determined from the mathematical error function.  
 
     
     
         3 . The method according to  claim 2 ,  
       characterized in that the correction values are determined in the form of a correction function.  
     
     
         4 . The method according to one of the preceding claims,  
       characterized in that a measurement facility, which has an optical-electronic gyroscopic measurement system having a first measurement unit, using which the azimuth synchronization error (Δα 1 ) and/or perpendicular offset error (Δα 2 ) is/are detected, is used for detecting the actual values.  
     
     
         5 . The method according to one of the preceding claims,  
       characterized in that a measurement facility, which has an optical-electronic gyroscopic measurement system, having a second measurement unit, using which the elevation synchronization error (Δλ) is detected, is used for detecting the actual values.  
     
     
         6 . The method according to one of the preceding claims,  
       characterized in that a measurement facility, which has a measurement system having a, preferably electronic, spirit level, using which the wobble error (Δ T ) is detected, is used for detecting the actual values.  
     
     
         7 . The method according to one of the preceding claims,  
       characterized in that a measurement facility, which has a measurement system having a device, using which the squint error (Δσ) is detected, is used for detecting the actual values.  
     
     
         8 . The method according to one of the preceding claims,  
       characterized in that the intended values and the actual values are made available to a computer, which determines the correction values and/or the correction function.  
     
     
         9 . The method according to one of the preceding claims,  
       characterized in that the correction values are stored in a system computer assigned to the gun, in order to be used during the calculation of the aiming values for aiming the weapon barrel.  
     
     
         10 . The method according to one of the preceding claims,  
       characterized in that the weapon barrel, during its rotation into the measurement positions, is rotated around the vertical axis of the gun and preferably also around the lateral axis of the gun.  
     
     
         11 . The method according to one of claims  4  or  5 ,  
       characterized in that, during detection of the actual values with the aid of an optical-electronic gyroscopic measurement system, a gyroscopic drift of the gyroscopic measurement system is determined at temporal intervals or continuously and taken into consideration in the actual values detected.  
     
     
         12 . A device for compensating firing errors of a gun having a weapon barrel, these firing errors being caused by static gun geometry errors, which influence the position of the weapon barrel during aiming of the weapon barrel at calculated aiming values, this device having a measurement facility for establishing actual values, which describes the position of the weapon barrel, the measurement facility having an optical-electronic gyroscopic measurement system on the weapon barrel, having a first measurement unit, in order to detect azimuth synchronization error (Δα 1 ) and possibly perpendicular offset error (Δα 2 ).  
     
     
         13 . The device according to  claim 12 ,  
       characterized in that the optical-electronic charismatic measurement system has a second measurement unit in order to detect elevation synchronization error (Δλ).  
     
     
         14 . The device according to one of  claims 12  to  13 ,  
       characterized in that the measurement facility has 
 a measurement system having a, preferably electronic, spirit level in order to detect wobble error (Δ T ), and/or  
 has a measurement system having a, preferably optical, device in order to detect squint error (Δσ).  
 
     
     
         15 . The device according to one of  claims 12  to  14 ,  
       characterized in that it has a computer unit, 
 which is connected on the input side to an intended value sensor, which makes intended values available which describe the intended position of the weapon barrel, and to the measurement facility, which makes the actual values available,  
 which is implemented for the purpose of calculating correction values, on the basis of the intended values and actual values, which are intended for the purpose of being taken into consideration during the calculation of the aiming values for the weapon barrel in order to compensate the firing errors, and  
 which may be connected on the output side to a system computer, in order to make data which represent the correction values available thereto.  
 
     
     
         16 . The device according to  claim 15 ,  
       characterized in that the computer unit has an input unit for inputting data.  
     
     
         17 . A system computer of a weapon system for calculating aiming values for aiming a weapon barrel of a gun of the weapon system,  
       characterized in that the system computer has a data input for data which is made available, this data being intended for the purpose of being taken into consideration during the calculation of the aiming values in order to compensate aiming errors, which are caused by static gun geometry error and which influence the position of the weapon barrel.