基于视觉效果的雷达目标动态回波序列特征提取方法  

Visual Effects Based Feature Extraction for Dynamic Radar Target Echo Series

作　　者：张静[1] 宋锐[1] 郁文贤[1] 胡卫东[1] 夏胜平[1] 

机构地区：[1]国防科学技术大学ATR重点实验室,长沙410073

出　　处：《信号处理》2005年第4期392-396,401,共6页Journal of Signal Processing

基　　金：十五国防预研基金支持

摘　　要：特征提取在雷达目标识别中具有重要地位,提取有效、可靠的目标特征,是建立目标识别系统的基础和关键。在常规低分辨雷达目标识别系统中,难以根据电磁散射理论进行有效建模。本文在观察和分析大量实测数据的基础上,根据雷达操作员进行目标判性的思维过程和描述方法,以雷达目标动态回波序列的视觉效果为切入点,建立了一整套雷达目标特征提取方法。在多个雷达目标识别项目中的实际应用,证明了该方法的有效性、稳健性和可推广性。Feature extraction is of great importance in radar target recognition. The extraction of effective and reliable features is fundamental and critical for the construction of target recognition systems. It is difficult to build target scattering models rigorously for regular low-resolution radars abiding by electro-magnetic theories. Based on the observation and analysis on a large number of real-lift data, and taking the thinking process and the description method of radar operators for reference, a set of feature extraction methods basing on visual effects for dynamic radar target echo series have been introduced. The application of these methods in multiple radar target recognition projects has testified their effectiveness and robustness.

关 键 词：雷达目标识别 特征提取 动态回波序列 视觉效果 回波凹口 提取方法 序列特征 回波 动态 目标识别系统 

分 类 号：TN957.52[电子电信—信号与信息处理] TS202.3[电子电信—信息与通信工程]