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轴系误差是影响潜望式光电仪器测角精度的重要因素,传统轴系误差模型使用大量数学近似,存在适用局限性。将轴系误差的产生用坐标变换的方法来表现,建立了一种精确的数学模型。推导了高度角误差与方位角误差的微分计算方法,在MATLAB上进行了仿真计算,验证了模型的正确性。该模型综合考虑了各种误差的影响,不存在数学近似引起的原理误差,为潜望式光电仪器的轴系误差补偿校正提供了参考。
Shafting error is an important factor that affects the accuracy of the periscope-type electro-optical measuring instrument. The traditional shafting error model uses a large number of mathematical approximations, which have some limitations. The axis of error generated by the coordinate transformation method to establish an accurate mathematical model. The differential calculation method of height angle error and azimuth error is derived. The simulation calculation is carried out on MATLAB to verify the correctness of the model. The model comprehensively considers the influence of various errors, does not exist the principle error caused by the mathematical approximation, and provides a reference for the correction and correction of the shaft error of the periscope-type optical instrument.