摘要
提出了一种联合宽带雷达多视角距离像进行弹道目标进动特征提取的方法。建立了锥柱体进动模型,并对散射点径向距离进行了分析。运用广义Hough变换提取散射点距离像的曲线参数。定义粗匹配和精匹配选择门限,根据提取的曲线参数信息来对散射点进行匹配,再由散射点初相差的不同进行散射点类型识别。最后,联立两部雷达提取同一散射点的曲线参数求解出进动角θ,再联立多视角距离像信息方程组进行目标的结构参数和雷达视角的求解。仿真结果验证了算法的正确性和有效性。
An algorithm based on uniting the observation information of multi-aspect range profile is proposed to extract the precession features of ballistic targets in this paper.Firstly,cone-cylinder precession model are established.An elaborate analysis of the scattering point range is given.Then the curves parameters in scattering point time-profile are extracted by generalized Hough transform.After defining coarse matching and fine matching selected threshold,each scattering point is matched on the basis of curves parameters information.And type of each scattering point is identified on the basis of the difference of its initial phase.Finally,after uniting two radars,the precession angle is solved on the basis of extracted curves parameters of the same scattering point.Configuration parameters and radar perspective are solved based on established associated multi-Doppler equation systems.
作者
韩睿
耿志远
HAN Rui;GENG Zhi-yuan(School of Computer and Communication Engineering,Huaian Vocational College of Information Technology, Huaian 223003,China;School of Aeronautics Astronautics Engineering,Air Force Engineering University,Xi’an710038,China)
出处
《火力与指挥控制》
CSCD
北大核心
2018年第11期77-81,共5页
Fire Control & Command Control
基金
国家自然科学基金资助项目(61372166
61501495)
关键词
弹道目标
时间-距离像
进动
特征提取
ballistic targets
time-range profile
precession
feature extraction
