摘要
针对二维弹道修正组件受到干扰磁场影响,导致滚转角测量存在较大误差的问题,提出了基于干扰磁场标定的滚转角测量误差补偿方法。该方法首先在弹丸发射前进行干扰磁场标定;然后在弹丸飞行过程中,实时采集磁传感器测得的磁场信号,并从中减掉已标定的干扰磁场,得到恢复后的地磁场以解算翼面滚转角。仿真结果表明,该方法滚转角解算误差降为处理前的20%以下。外场试验结果表明,大幅提高了滚转角解算精度,解算误差5°以内,该方法可以有效消除干扰磁场。
In view of the influence of the interference magnetic field on the two-dimensional trajectory correction kit,a big error occurs in the measurement of roll angle,therefore,an error compensation method based on the calibration of the disturbance field was proposed.In the method,before launching,projectiles’interference magnetic field were calibrated;then in the process of projectile flight,a magnetic sensor measurement of magnetic field signal was real-time acquired,and the calibrated magnetic interference was subtracted after the restoration of the geomagnetic field to calculate the roll angle wing.Simulation results showed that the error of the method was reduced to 20%.The results of the field test showed that the algorithm could improve the accuracy of the roll angle,and the calculation error was less than 5°,which could effectively eliminate the interference magnetic field.
作者
杨恺华
钱荣朝
郑吉阳
徐国泰
YANG Kaihua;QIAN Rongzhao;ZHENG Jiyang;XU Guotai(Science and Technology on Electromechanical Dynamic Control Laboratory,Xi’an 710065,China;Unit 63752 of PLA,Weinan 714000,China)
出处
《探测与控制学报》
CSCD
北大核心
2019年第4期7-10,共4页
Journal of Detection & Control
关键词
二维弹道修正
磁探测
翼面滚转角测量
误差补偿
two dimensional trajectory correction
magnetic detection
roll angle measurement
error compensation
