基于多频特征的OTHR目标分类性能分析  

Performance Analysis of Target Classification of OTHR Based on Multi-frequency Features

作　　者：柳毅[1] 刘路[2] 程咏梅[2] 王增福[2] 杨峰[2] 

机构地区：[1]火力控制技术国防科技重点实验室,河南洛阳471009 [2]西北工业大学自动化学院,陕西西安710072

出　　处：《计算机测量与控制》2010年第9期2135-2138,共4页Computer Measurement &Control

基　　金：重点实验基金项目(9140C4602040902);国家自然科学基金(60634030;60702066);航空基金项目(20090853013);西北工业大学校翱翔之星计划项目

摘　　要：天波超视距雷达(OTHR)的目标分类识别方法与常规雷达有着很大的区别;由于目标对不同频率的入射波所返回的信号不同,可直接用合理配置在几个频率点上的RCS数据进行目标分类识别;在仿真模拟OTHR的目标回波及电离层模型和构建目标RCS特征库的基础上,针对部分空中目标,利用多频法进行目标分类识别,进行了大量仿真实验和性能分析;通过对比在不同频率点数和不同外加噪声情况下的分类识别结果,验证了多频法在OTHR目标分类识别中的有效性和可行性。As OTHR work differently from the microwave radar,the conventional method of target classification and recognition cannot be used in OTHR.The signal returned from target at different incident wave frequencies is different.So the RCS data which directly deployed in a reasonable number of frequencies can be utilized for target classification and recognition.On the base of the simulation of OTHR echo signals,the ionosphere model and the library of the target RCS characteristics,multi-frequency method for target classification and recognition was used for some air targets.A lot of simulation experiments and performance analysis demonstrate the validity of this method in OTHR target classification and Identification.

关 键 词：多频特征 目标分类 天波超视距雷达 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]