一种基于动态挠曲误差估计的“速度+姿态”传递对准方法

为了保证传递对准信息的可靠性及准确性,航姿基准一般安装在舰载武器的附近,离舰艇主基准距离较远,舰艇的挠曲变形对主基准、航姿基准之间的传递对准影响不可忽略。通过将动态挠曲变形模型的相关变量引入到传递对准状态方程中,从而降低动态挠曲变形对传递对准精度的影响。仿真结果表明,该方法有效降低了动态挠曲变形对传递对准精度的影响,满足传递对准的高精度和快速性要求。

A Velocity Plus Attitude Matching Transfer Alignment Method Based on Dynamic Flexure Deformation Estimation Model

To ensure the reliability and the veracity of transfer alignment, the atittude and heading reference system (slave inertial navigation system, SINS) is usually set next to shipborne weapon system, which is far from the master reference system (master inertial navigation system, MINS). As a result, the dynamic flexure deformation existing in the process of transfer alignment cannot be ignored. By adding the related variables of dynamic flexure deformation model to the transfer alignment equation of state, the influence of dynamic flexure deformation on the transfer alignment accuracy can be reduced. The simulation results show that the proposed method effectively reduces the influence of dynamic flexure deformation on the transfer alignment accuracy, and can meet the requirements of accuracy and rapidity on the transfer alignment.