| 基于FrFT的线性调频-伪码调相复合调制雷达信号截获与特征提取 |
| |
| 引用本文： | 向崇文,黄 宇,王泽众,刘 锋.基于FrFT的线性调频-伪码调相复合调制雷达信号截获与特征提取[J].电讯技术,2012,52(9):1486-1491. |
| |
| 作者姓名： | 向崇文 黄 宇 王泽众 刘 锋 |
| |
| 作者单位： | 1. 海军航空工程学院电子信息工程系,山东烟台264001;解放军91960部队,广东汕头515074
2. 海军航空工程学院电子信息工程系,山东烟台,264001 |
| |
| 基金项目： | 国家自然科学基金资助项目(60902054) |
| |
| 摘 要： | 针对线性调频-伪码调相复合调制雷达信号(LFM-PRBC)的截获与特征提取问题,提出了一种基于分数阶傅里叶变换(FrFT)平面切割与相关检测相结合的新方法.理论分析和计算机仿真验证表明,该方法具有较好的有效性和准确性,能快速完成高斯白噪声背景下低信噪比复合调制雷达信号的截获与特征提取,有一定的实际应用价值.
|
| 关 键 词： | 低截获概率雷达 线性调频 伪码调相 复合调制 分数阶傅里叶变换 特征提取 |
Interception and feature extraction of LFM-PRBC combined modulation radar signal based on FrFT |
| |
| XIANG Chong-wen,HUANG Yu,WANG Ze-zhong and LIU Feng.Interception and feature extraction of LFM-PRBC combined modulation radar signal based on FrFT[J].Telecommunication Engineering,2012,52(9):1486-1491. |
| |
| Authors: | XIANG Chong-wen HUANG Yu WANG Ze-zhong and LIU Feng |
| |
| Institution: | 1(1.Department of Electronic and Information Engineering,Naval Aeronautical Engineering Institute,Yantai 264001,China;2.Unit 91960 of PLA,Shantou 515074,China) |
| |
| Abstract: | For the problem that interception and feature extraction of linear frequency modulation-pseudo random binary codes(LFM-PRBC) phase modulation combined radar signal,a novel method composed of cutting plane and correlation detection based on the Fractional Fourier Transform(FrFT) is presented.Through theoretical analysis and computer simulation,its validity and accuracy are suitable to achieve feature extraction of combined modulation radar signal quickly with a low signal to noise ratio(SNR)in Gaussian white noise background.This method has application value. |
| |
| Keywords: | LPI radar linear frequency modulation pseudo random binary codes phase modulation combin
ed modulation Fractional Fourier transform feature extraction |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《电讯技术》浏览原始摘要信息 |
| 点击此处可从《电讯技术》下载免费的PDF全文 |
