基于地磁传感器的弹体姿态角测量方法研究

随着各国对信息化弹药的重视，地磁传感器测姿技术也得到快速发展。目前国内的地磁测姿设备仅能测量弹体的滚转角及转速，文章介绍了一种利用三轴矢量磁力计测量飞行弹体在弹体坐标系下的磁场强度及磁场强度变化率，然后通过测得的磁场强度及变化率求解弹体姿态（俯仰角、偏航角及滚转角）的理论计算方法，该测量方法的精度主要取决于矢量磁力计的测量精度，具有很高的工程应用价值。

Research on the Method of Measuring Projectiles Attitude Angle by Magnetometer

Along with many country attaching important to the informationization of ammunition, the technology of measuring projectile attitude angle by geomagnetic sensor has been developed fast. Now,domestic equipment of measuring projectile attitude angle by geomagnetic sensor only can measure the roll angle and roll rates. In this paper, a method of measure projectiles attitude angle by a tri-axial vector magne- tometer has been introduced. In this method, the vector magnetometer first measures the magnetic field intensity and its change rate, then uses this data to calculate projectiles attitude angle. The efSectiveness of this method is only dependent on the accuracy of the vector magnetome- ter, so this method has high value of engineering application.