末制导炮弹姿态更新算法研究  

Study on Algorithm for Attitude Updating of Terminal Guided Projectile

作　　者：唐克[1] 王存威[1] 杜涛[1] 

机构地区：[1]解放军炮兵学院一系,合肥230031

出　　处：《弹道学报》2009年第4期60-62,共3页Journal of Ballistics

摘　　要：运用一种减小捷联惯导系统姿态算法误差的运算方法,对末制导炮弹姿态更新算法进行了研究,建立了双插值姿态解算数学模型.利用末制导炮弹的一条弹道数据进行仿真研究,与常见的四子样旋转矢量法进行了比较.结果表明,由于克服了刚体转动的不可交换性误差,与四子样旋转矢量法相比,在姿态更新周期相同及不相同的情况下,该方法计算精度都相对较高.By use of operation method by which the attitude algorithm error of strapdown inertial guidance system can be reduced, the operation method of attitude updating of Terminal Guided Projectile（TGP） was studied. The mathematical solving model of attitude was established. The simulation research by the ballistic data of TGP was carried out, and the algorithm was compared with the common four sub-sample revolving vector method. Because of overcoming the unchangeable error of rigid body rotate, the double-interpolation attitude algorithm is higher than that of four sub-type revolving vector method whether the attitude updating periods are equal or not.

关 键 词：末制导炮弹 姿态更新 四元数 拉格朗日插值 

分 类 号：E271.4[军事—军事理论]