CCD与磁-陀螺系统组合测量弹目相对方位的方法

The Combined Method to Measure the Relative Azimuth Between Projectile and Target by CCD and Magnetometer-Gyro System

弹目相对方位是弹丸修正所需的重要参数.提出了一种利用由磁-陀螺姿态测量系统和CCD组成的低成本测量系统测量弹目相对方位的方法,给出了利用地磁矢量、陀螺和CCD测量结果进行弹目相对方位解算的数学模型,进行了仿真试验.试验结果表明,该方法在一定条件下测量弹目相对方位能达到较高的精度,即弹目相对转角不超过5°.

The relative azimuth between projectile and target is the key parameter needed in projectile correction. A new method was broached to measure the relative azimuth based on a system which combined CCD with magnetometer-gyro system. A mathematic model was built to resolve the relative azimuth with measurements of the geomagnetism, gyro, and CCD. According to the model, a simulation model was designed. A conclusion can be drawn from the test results that the relative azimuth can be measured exactly using the method in certain conditions that the relative rotation angle can be contained within 5°.