基于高分辨距离像的弹道目标尺寸综合估计方法  

Integrative Estimation of Ballistic Target′s Dimension Based on HRRP

作　　者：毕莉[1] 赵锋[1] 高勋章[1] 黎湘[1] 

机构地区：[1]国防科技大学电子科学与工程学院,长沙410073

出　　处：《现代雷达》2009年第10期42-46,共5页Modern Radar

基　　金：航空科学基金项目(No.20070188003);航天支撑技术基金o.2008-HT-GFKD)

摘　　要：利用高分辨距离像估计目标尺寸是弹道导弹中段防御雷达目标特征提取和识别的重要途径。文中介绍了经典的谱估计方法及其实现流程,在此基础上提出了一种综合估计方法,该方法将傅里叶变换和超分辨方法相结合,充分利用两者的优点,有效解决了单个谱估计方法无法同时提高模型阶数估计精度和散射点位置估计精度的问题。最后给出了基于仿真数据的目标尺寸估计仿真结果,通过估计精度的比较,验证了文中方法的有效性。Estimating targets dimension using high resolution range profile （HRRP） is an important means of character extraction and target recognition of ballistic missile mid - course defense radars. In this paper, the classic methods based on spectrum estimation are introduced, as well as their concrete flow. And then a new integrated method is brought forward, which combines the fou- rier method and the super-resolution method and takes advantage of both. The integrated method can effectively solve the problem existing in the single spectrum method that the estimation precision of model order and scatter position cannot be improved synchronously. Finally, simulation results based on simulation data are given, which validates the validity of the integrated method by comparing the performance.

关 键 词：高分辨距离像 弹道目标 尺寸估计 特征提取 目标识别 

分 类 号：TN957.52[电子电信—信号与信息处理]