基于非正交磁传感器组合的旋转弹体横滚角测试

针对微惯性传感器测量误差随时间严重发散且量程不能满足旋转弹体横滚角测量的要求,采用磁传感器组合对旋转弹体的横滚角测量及工程可实现性进行了研究。对于不同角度、位置安装的磁传感器,给出了其敏感轴上的数学表达式,并且利用两个非正交安装的磁传感器输出的极值之比与俯仰角呈固定关系进行姿态角求解。分析了产生奇异的条件和使用磁传感器进行横滚角测量的可行性,并对传感器布阵方案及解算方法进行了半实物实验。实验结果表明,俯仰角和横滚角的解算误差基本控制在1°以内,此测量方案适用于偏航角变化不大的旋转弹体。

Roll Angle Measurement of Spinning Projectile Based on Non-orthogonal Magnetic Sensors

In allusion to some deficiencies of micro inertial sensors,of which the measuring error spreads with time and the measuring range can not meet the requirement of roll angle measurement of spinning projectile,the roll angle measurement of spinning projectile by using the magnetic sensors and its engineering implementation feasibility were researched.A mathematical expression was given for the magnetic sensors installed at the different angles and positions,and the attitude angles were calculated according to...