Error derivation of axis visualization in artillery direction accuracy test

Abstract

With the advancement of actual combat training, a high-precision artillery barrel direction measurement method is required under actual combat conditions. The total station method is the best method among the various methods. During the measurement process, the barrel axis is not visible and cannot be measured directly. The commonly used axis visualization method introduces measurement errors. This paper analyzes the reasons for the error of the visualization method. Based on the rotation relationship between the coordinate systems, the implicit function relationship between the error and the measurement direction is derived by using the Euler-Rodrigues equation. Finally, an experiment is carried out with a particular type of artillery to verify the rationality of the functional relationship.