摘要
针对旋转载体因旋转表征方式不同出现姿态解算诱导误差问题,通过分析旋转特点,提出两轴旋转表征方法。定义锥形运动的姿态角,建立角运动方程及姿态解算方程,并给出与常规姿态角的关系式,仿真分析不同表征方式的角速度和姿态解算的差异,并通过试验设计进行对比验证。综合仿真和实验结果表明:在相同的锥形运动条件下,两轴旋转表征方法与三轴旋转表征方法的差异随着锥形运动条件的恶劣而变大,但两轴旋转表征方法解算姿态误差较小,因此采用两轴旋转表征方法更为有效。该表征方法不但为旋转载体的抑制姿态误差提供理论基础,还能为攻角和侧滑角测量提供新思路。
Different presentation of angular motion can induce attitude error.In this paper,based on analyzing triaxial rotation character for spinning bodies,a two-axis rotation presentation method is proposed.Cone attitude angles are defined,the angular motion equation and the resolving equation are established,and the relationship of the cone attitude and the normal attitude angle is provided.The simulations and the experiment are made to verify the difference between the two-axis rotation presentation and the traditional three-axis rotation presentation.The results show that under the same simulation conditions of attitude and angular velocities,the difference becomes larger as the condition of the coning motion deteriorates,and the two-axis rotation presentation method is more effective for its smaller attitude error.The presentation method can provide a theoretical basis for suppressing attitude errors and a new idea for angle-of-attack and side-slip angle measurements.
作者
张双彪
苏中
李兴城
ZHANG Shuangbiao;SU Zhong;LI Xingcheng(Beijing Key Laboratory of High Dynamic Navigation Technology,Beijing Information Science and Technology University,Beijing 100101,China;School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China)
出处
《中国测试》
CAS
北大核心
2020年第5期1-6,18,共7页
China Measurement & Test
基金
国家自然科学基金(61771059)
北京市教委科技创新服务能力建设项目(KM201911232013)
促进高校内涵发展-科研重点研究培育项目(5211910952)。
关键词
旋转载体
角运动
表征方法
姿态误差
spinning bodies
angular movement
presentation method
attitude error
