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机载或舰载武器系统惯性导航系统动基座对准的首选方案就是传递对准,速度匹配传递对准因为其较好的水平失准角可观测性以及线性量测模型得到了广泛的应用。但当载体存在角运动时,速度匹配传递对准必须对杆臂误差进行补偿,由于变形的存在,使得杆臂误差的准确补偿存在较大的困难。针对这一问题,研究了一种不需要进行杆臂误差补偿的快速传递对准方案,能够在杆臂误差较大时,以较快的速度获得较高的失准角估计精度。计算机仿真结果验证了理论分析的正确性。
The preferred solution to the pedestal alignment of an inertial navigation system for airborne or carrier-based weapon systems is pass-through, which is due to its good horizontal misalignment angle observability and linear measurement models are widely used . However, when the carrier has angular motion, the error of the lever arm must be compensated for the speed matching transfer alignment. Because of the deformation, accurate error compensation of the lever arm has great difficulties. Aiming at this problem, a fast transfer alignment scheme that does not need to compensate for the error of the lever arm is studied, which can obtain high accuracy of misalignment estimation at a faster speed when the error of the lever arm is larger. Computer simulation results verify the correctness of the theoretical analysis.