Study on the data processing method of range external ballistics based on three-dimensional Euler angle estimation
In the process of converting the external ballistic data obtained from the radar test long-range flight test to the emplacement launching coordinate system,aiming at the problem that the impact distance deviation of post data processing results is large,in this paper,a ballistic data processing method based on the three-dimensional Euler angle is proposed.This method estimates the three-dimensional Euler angle of the rotation from the radar launching coordinate system to the emplacement launching coordinate system,rotates the radar launching coordinate system in the three-axis direction and makes it consistent with the three-axis direction of the emplacement launching coordinate system in space.We can get the data processing results of the emplacement launching coordinate system including the earth curvature factor after translate the coordinate system.By comparing and analyzing the distance deviation distribution between the real impact point and the ballistic impact point obtained by the ballistic data processing method and ballistic impact point obtained by the traditional translation processing method,the results show that the impact point deviation of data processing based on three-dimensional Euler angle is smaller,and higher accuracy,and the average deviation reduced by 48.9%.It is of great significance for searching,destroy and recycling the projectiles.
earth curvatureeuler angledata process of ballisticcoordinate systems rotation
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