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为提高远程弹道导弹的命中精度,针对其纵向误差明显高于横向误差的特点,提出一种运用单基站的测距系统,精确测量发射点至弹体的距离,并融合惯导的导航信息对径向速度进行精确估计的复合制导方法,以提高导弹的纵向精度。这种方法对地面布站无特殊要求,基站可安装在发射车上随车机动。仿真结果表明,该方法能将导弹的射程偏差减小至纯惯性制导时代三分之一。
In order to improve the hitting precision of long-range ballistic missiles, aiming at the characteristic that longitudinal error is obviously higher than lateral error, a single base station ranging system is proposed to measure the distance between launch point and projectile accurately and to fuse navigation information of inertial navigation Radial velocity to accurately estimate the composite guidance method to improve the longitudinal accuracy of missiles. This method has no special requirements on the ground cloth station, and the base station can be installed on the launch vehicle to move with the vehicle. The simulation results show that this method can reduce the range deviation of missiles to one third of the pure inertial guidance time.