CAJ | 학술논문

针对旋转弹用捷联惯性导航系统中三轴加速度计在高转速下，由于安装位置误差使得3个加速度计对比力的测量对应于不同的点位置。在角运动环境下姿态解算时产生动态误差的问题，提出了一种标定补偿三轴加速度计安装位置误差的方法。分析了动态误差产生的原因，在常规静态标定的基础上推导了动态标定的模型，高转速下的转台试验表明本方法能够很好的补偿三轴加速度计在高转速下产生的误差，有效地提高惯性测量单元姿态测量的精度，具有很好的工程应用性。
침대선전탄용첩련관성도항계통중삼축가속도계재고전속하，유우안장위치오차사득3개가속도계대비력적측량대응우불동적점위치。재각운동배경하자태해산시산생동태오차적문제，제출료일충표정보상삼축가속도계안장위치오차적방법。분석료동태오차산생적원인，재상규정태표정적기출상추도료동태표정적모형，고전속하적전태시험표명본방법능구흔호적보상삼축가속도계재고전속하산생적오차，유효지제고관성측량단원자태측량적정도，구유흔호적공정응용성。
Viewed at the problem that the measurement points and the installation position of accelerometers don’t coincide,having dynamic error at high speed,developed a dynamic error calibration method. The basic principle of the new calibration method was expounded,and the solving process of the new method was deduced,and the means of identifying and separating parameters were put forward. A general model of dynamic error calibration for accelerometer unit installation position calibration is established. This paper designed the three-axis turntable static test scheme and ground semi-physical simulation test. All the experiment results show that the present method can effectively improved the measurement accuracy of accelerometer unit and can provide accurate specific force input for the subsequent navigation measurement in engineering application.