提出了一种基于冲激雷达体制的运动点目标空间定位算法,该算法针对冲激雷达的特点,采用距离门等效采样的方式采集各个发射脉冲的回波数据,通过对采集到的数据进行相关处理得到点目标经过各个距离门时不同接收天线间的距离差,并利用TDOA方法实现点目标在各定位点的空间定位。通过对目标运动模型的建立,可进一步通过Kal- man平滑滤波的方法提高运动点目标坐标的估计精度,仿真结果表明该定位算法具有较高的定位精度。

In this paper a space location algorithm for moving point scatter based on impulse radar is presented. According to the characteristic of impulse radar, this algorithm collects return signal by equivalent sampling using range gates. Then measure the distance differences of every range gate between the different receiving antennas by correlating of the collected data. The TDOA method can realize the localization on every range gate of referenced receiving antenna. Futher the kalman smoothing filter is adopted to obtain a more accurate localization result by constructing target moving model. Simulation results show that the algorithm can get satisfacting space localization accuracy.

TN957