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一种快速传递对准方法的误差模型研究
Study of Rapid Transfer Alignment Error Model
【摘要】 传递对准是机载、舰载武器惯导系统初始对准的首选方案,初始对准的速度和精度直接影响着武器系统的快速反应能力和精确打击能力,提高初始对准的速度和精度一直是该领域研究的主要目标,美国学者Kain首次提出了先进的"速度+姿态"匹配快速传递对准方法,能在10s内达到1mrad的对准精度,很快得到了广泛的关注。利用四元数这一有力的数学工具,从惯性导航系统工作原理出发,重新诠释证明了该先进的快速传递对准误差模型,最后通过仿真对该方法进行了分析,为该模型的深入理解和工程应用提供了有价值的理论参考。
【Abstract】 Transfer alignment is the first choice of initial alignment of air-borne or ship-borne weapon’s inertial navigation system,the velocity and precision of the initial alignment directly affect the ability about rapid response and accuracy of the weapon,so improving the velocity and precision of the initial alignment is always the goal of the researchers in this area.An advanced rapid transfer alignment method witch is named "velocity and attitude matching" is first introduced by American researcher Kain,it can obtain the precision smaller than 1mrad within 10 seconds.This paper proved this advanced rapid transfer alignment model in detail by applying the powerful mathematical tool quaternion,based on the principle of inertial navigation system,simulation results validated the advantages of this method,it is benefit for the deep understanding and engineering application of this advanced method.
【Key words】 Rapid transfer alignment; Velocity matching; Attitude matching; Kalman filtering;
- 【文献出处】 宇航学报 ,Journal of Astronautics , 编辑部邮箱 ,2009年03期
- 【分类号】TJ765
- 【被引频次】20
- 【下载频次】374