弹道中段目标平动径向速度估计的状态空间方法

摘要

In order to analyze the micro-movement component of the ballistic targets at the middle trajectory,the accurate estimation and compensation of the high-speed translational component from the radar echo are needed.The ultra-wideband signal model under the joint action of the target high-speed translational movement and micro-movement is proposed,and a state space approach based method for accurately estimating translational radial velocity is presented.This method can effectively inhibit the influence of the micromovement component on the translational radial velocity estimation,and provide better estimation accuracy than traditional methods.The ultra-wideband signal model containing both high-speed translational components and micro-movement components can also be used directly for subsequent micro parameter extraction processing.The simulation results show the effectiveness of the signal model and the translational radial velocity estimation method presented in the paper.%为了分析弹道中段飞行目标的微动分量,需要对雷达回波中的高速平动分量进行准确估计和补偿.该文建立了目标高速平动和微动共同作用下的超宽带信号模型,提出了一种基于状态空间处理的平动径向速度高精度估计方法,该方法可以有效抑制微动分量对平动径向速度估计的影响,估计精度优于传统方法.同时包含高速平动分量和微动分量的超宽带信号模型,也可直接用于后续的微动参数提取处理.仿真结果验证了文中信号模型与径向速度估计方法的有效性.