摘要
传递对准是舰载武器惯导系统初始对准的一种有效办法,为满足舰载武器要反应快的要求,必须在短时间内对初始不对准角进行估计并加以补偿。文中建立了采用四元数的传递对准的线性模型,在此基础上进行卡尔曼滤波,解决了舰载垂直发射导弹的初始对准问题,同时又克服了一般四元数对准模型非线性滤波计算量大,对准时间长的缺点,使导弹能在短时间内完成对准,提高其反应速度,增加其命中率。仿真结果表明,该文提出的快速对准方法具有对准速度快、精度高的优点。
Transfer alignment is an effective approach for initial alignment of shipborne weapon＇s inertial navigation systems （INS）. Usually, the estimation on initial misalignment angle and compensation must be carried out in short time in order to satisfy the requirement of fast reaction for shipborne weapons. In this paper, a linear model of transfer alignment using quaternions is derived, and then a Kalman filter is used to complete the initial alignment of the vertical launching missile on the ship, which overcomes the shortcoming of heavy computation and long alignment time in the nonlinear filter of alignment model using quaternions, and improves the speed of reaction and the hit rate of missile. Simulations show the rapidness and precision of the proposed approach.
出处
《中国惯性技术学报》
EI
CSCD
2006年第4期1-6,共6页
Journal of Chinese Inertial Technology
关键词
传递对准
垂直发射
四元数
卡尔曼滤波
线性模型
transfer alignment
vertical launching
quaternions
Kalman filter
linear model
