摘要
空间目标的微多普勒信息对于目标的形状及运动参数提取和目标识别具有重要价值。文中针对进动的平底锥形目标,分析了锥顶和锥底散射中心的瞬时微多普勒之间的关系,并在此基础上提出了一种只利用锥顶和一个锥底散射中心的瞬时速度测量值估计目标高度、底面半径和进动角的新方法。最后,通过电磁仿真数据验证了文中所提方法的有效性。
The micro-Doppler is significant for shape and motion parameters extraction and target recognition of space target. In this paper, the relationship between the instantaneous micro-Doppler of the top and the bottom of the cone with flat bottom is analyzed. Based on the analyzing, a novel approach to estimate the height, radius of the bottom and the precession angle of the cone target is proposed. The instantaneous radial velocities of the top and only one scattering from the bottom edge are unutilized in this method. Finally, the validity of the proposed algorithm is verified by the EM analysis data.
出处
《现代雷达》
CSCD
北大核心
2014年第8期17-21,共5页
Modern Radar
关键词
微多普勒谱
进动锥体目标
形状参数估计
进动参数估计
micro-Doppler spectrum
precession cone target
shape parameters estimation
precession parameters estimation
作者简介
通信作者:叶显Email:shine.ye@hotmail.com叶显 男,1980年生,博士,高级工程师。研究方向为雷达系统设计。
赵海华 男,1970年生,本科。研究方向为雷达信号处理。