弹道中段进动目标高精度平动补偿方法

Translation Motion High Accuracy Compensation for Procession Ballistic Target in Midcourse

该文针对中段进动目标平动补偿问题,分析了中段目标平动及进动的运动特性,指出中段目标进动具有轴对称性,并利用这一特性提出一种基于对称共轭相乘的进动目标平动参数估计方法。该方法通过对称数据的共轭相乘处理消除微动的影响,仅保留平动参数信息,然后根据共轭相乘后数据傅里叶变换的峰值信息估计平动参数,并基于所估计平动参数实现了中段进动目标平动的高精度补偿。仿真结果验证了所提算法的有效性。

To compensate the translation motion of precession ballistic targets, the characters of translation and precession are analyzed and it is found out that the precession has the center symmetry character. Using this character, a method based on conjugate multiplication of center symmetry data is proposed to estimate the translation motion of precession ballistic target. The precession motion is canceled out due to the conjugate multiplication and the translation motion parameters can be estimated by the spectral peak position of the conjugate multiplied signal. Therefore, the translation motion can be compensated based on the estimated translation motion parameters. Simulation results verify the validity of the proposed algorithm.