Low dynamic target tracking method for ship navigation radar in near space
In order to ensure the navigation safety of ships in the sea area,a low dynamic target tracking method in the near space of ship navigation radar is proposed.The ship navigation radar is used to detect low-dynamic targets in the near space,and the measured point trace data is obtained.The influence of low-dynamic aircraft motion on its measured values is analyzed.According to the principle of least square filtering,a least square filter based on attenuation memory is designed,and the measured point trace data is converted to the radar rectangular coordinate system.The measured point trace data is selected according to attenuation memory,which is used as the input data of the least square filter based on attenuation memory,and the tracking coordinates of low-dynamic targets are determined,and then converted to the radar polar coordin-ate system to realize the tracking of low-dynamic targets in the near space.The experimental results show that this method can realize the tracking of low dynamic targets in the near space under uniform and uniform acceleration motion,and the tracking trajectory basically coincides with the actual trajectory,and the root mean square error of the distance in X,Y and Z directions is much lower than that of the measured data.
万方数据
维普
