一种新的机动目标速度特征参数测量方法

A New Measure Method of Speed Character Parameter in Manever Target

建立了目标雷达回波模型,分析了高速目标的径向速度、径向加速度与目标速度、初始位置的运动方向与雷达视线的夹角关系;在基于最大似然估计线性调频参数估计的基础上,研究了高速目标径向速度、径向加速度的克劳美-饶界;研究了高速目标的初始速度为v0、初始位置的运动方向与雷达视线的夹角为θ0、目标加速度a等的估计方法,并推导了v0、θ0、a估计的克劳美-罗界,分析了影响v0、θ0、a估计的克劳美-罗界的因素。

Model of target＇ s radar waves is built, and the relation between high speed target＇ s radial speed, radial acceleration and the angle between target speed, original location and view of radar are analyzed in this paper, the Cramer-Rao boundof high speed target＇ s radial speed, radial acceleration are researched based on max likelihood parameter estimation of liner frequency modulation signal, then a new measure method of high speed target＇ s original speed, direction and acceleration is put forward, at last Cramer-Rao bound of target＇ s original speed, direction and acceleration are deduced and the factor that affect Cramer-Rao bound of target＇ s original speed, direction and acceleration are analyzed.