基于四磁传感器组合的弹体姿态测量方法适用性研究  

Adaptability of Missile Body Attitude Measurement Based on Four-magnetic Sensors Unit

作　　者：向超[1] 卜雄洙[1] 李玎[2] 

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]江苏技术师范学院电气信息工程学院,江苏常州213001

出　　处：《南京理工大学学报》2012年第5期804-809,共6页Journal of Nanjing University of Science and Technology

基　　金：江苏省普通高校研究生科研创新计划项目(CX10B_119Z)

摘　　要：针对导航和姿态测量中地磁场三轴分量方法无法得到全部姿态角信息的问题,该文分析了基于两非正交磁传感器的极值比解算姿态角方法的假设条件和测量原理。利用误差分配理论和数值仿真技术,结合弹丸实际运动规律和我国地域特征,讨论了该方法所测姿态角的理论误差范围及测量盲区,探讨了该弹体定姿方案的适用性。结果表明,该方法在[15°,75°]射角时测量误差在±1°内,且满足普遍旋转弹体的姿态测试要求。半实物实验验证了该方案的有效性。In view of that the three-axis components method of the magnetic fields can not give the whole information about the attitude angle in the navigation and the attitude measurement, the assumptions and the measurement principle of the extremum ratio solver algorithms of the attitude angle are analyzed based on the two-non-orthogonal magnetic sensors. Combining the actual movement of the projectile and the regional characteristics in China, the measurement error range of the attitude angle and the blind spots are studied using the error distribution theory and numerical simulation, and the applicability of the missile body attitude measurement method is discussed. The results indicate that the error of attitude angles can be kept within ±1° with the[ 15°,75°]fire angle,and the method meets attitude test requirements of the common rotary projectiles. The effectiveness of the program is verified by the semi-physical experiments.

关 键 词：弹体姿态测量 磁传感器 极值比法 适应性 

分 类 号：U666.1[交通运输工程—船舶及航道工程]