基于目标运动轨迹提取的矢量脱靶量测量方法

提出一种基于目标空间运动轨迹提取的矢量脱靶量参数估计新方法.该方法利用不同接收天线接收的目标回波信号之间的相位差得到距离差,并基于距离差定位方法获得目标运动轨迹的空间定位点序列.通过建立目标运动模型,采用固定区间Kalman平滑滤波的方法获得目标运动的较精确轨迹.利用平滑滤波后的空间位置点,通过对一组线性方程求解得到矢量脱靶量参数的估计.仿真结果表明该方法可有效地估计出矢量脱靶量参数.

Measurement Method of Vector Miss Distance Based on the Extraction of Target Trajectory

A new approach for estimating the vector miss distance parameters of the target is presented, which based on the extraction of the target motion trajectory in space. In this method, the distance differences, which are got from the phase differences of echo signals between the different receiving antennas, and the localization method based on distance differences is utilized to get the spatial localization point sequences of the target. Further the fixed-interval Kalman smoothing filter is adopted to obtain a more accurate target motion trajectory by constructing the motion model of the target. Then by utilizing the total smoothed localization point, a set of linear equations is formed and the vector miss distance parameters are estimated. Simulation results prove that the proposed method is effective in the vector miss distance parameter estimation.