基于模糊控制的二维弹道修正引信滚转角控制算法

摘要

In order to solve the roll angle control problem of the two-dimensional trajectory correction fuze,an algorithm based on fuzzy control was proposed.Firstly,the fuzzy rules was generated,then the required elec-tromagnetic torque according to the actual roll angle and target roll angle combined with the speed of fuze rela-tive to the earth was determined,then the relationship of the rotating speed was combined with the projectile and electromagnetic torque,the roll angle was control by adjusting the load resistance to get the required electromag-netic torque.The simulation results showed that the fuze roll angle stabilized to the target roll angle less than 10°,the mean error and mean squared error were both within 5°,from the beginning to the control in place,the longest time of 5.4s,that was a relatively short time,after the complete control,maximum mean error is 0.005°,error is small;the maximum mean squared error is 1.280°,the control effect was stable,which could meet the requirements of accurate and fast of the two-dimensional trajectory correction system of roll angle con-trol for the fuze.Because of the fuze roll angle measurement and calculation of torque may had some errors, which might be substituted into the control algorithm error,further research was necessary.%针对二维弹道修正引信中的滚转角控制问题,提出了基于模糊控制的滚转角控制算法。该算法中首先生成模糊规则,然后根据实际滚转角与目标滚转角,结合引信相对大地的转速,确定所需电磁力矩,再结合引信相对弹丸的转速及电磁力矩关系表,通过调整负载电阻大小,形成所需的电磁力矩,完成引信滚转角控制。仿真结果表明：以引信滚转角稳定到距目标滚转角10°以内,均值误差和均方差为5°以内为标准,从开始控制到控制到位,最长用时5.4 s,完成控制时间较短,完成控制后,实测滚转角距目标滚转角最大均值误差为0.005°,误差较小；最大均方差1.280°,控制效果稳定,能够满足二维弹道修正系统对引信滚转角控制的要求,达到相应的控制准确性、快速性。