【作者】 耿延睿； 滕继涛； 崔中兴； 房建成；

【Author】 GENG Yan-rui,TENG Ji-tao, CUI Zhong-xing, FANG Jian-cheng (Beijing University of Aeronautics and Astronautics, Beijing 100083)

【机构】 北京航空航天大学；

【摘要】 在捷联惯导系统中,由于机体在速度更新过程中发生姿态变化,要精确实现捷联惯导系统的比力积分过程,必须对速度更新算法进行划船效应误差补偿。本文分析了比力转换积分中存在的划船效应,在现有划船误差算法的基础上对划船效应补偿算法设计和划船效应误差特性进行了进一步的探讨,并提出了通用划船效应补偿系数方程和误差公式,给出了4种新的优化划船效应补偿算法,并对划船效应补偿的误差特性进行了仿真研究,仿真结果证明了新算法的正确性。更多还原

【Abstract】 During the updating cycle of velocity in the strapdown inertial navigation System, sculling error compensation has to be implemented to get good effect on velocity computation because of attitude change. The sculling effect in specific force transformation is introduced in this paper, and the algorithm design of sculling effect and character of error are discussed deeply. An universal compensation parameter equation and error equation of sculling effect are presented, four new methods of optimal sculling error compensation algorithm are given. The results are proved to be right by simulation.更多还原