| 基于旋翼微动雷达特征的空中目标识别 |
| |
| 引用本文： | 陈行勇,黎湘,郭桂蓉,姜斌.基于旋翼微动雷达特征的空中目标识别[J].系统工程与电子技术,2006,28(3):372-375. |
| |
| 作者姓名： | 陈行勇 黎湘 郭桂蓉 姜斌 |
| |
| 作者单位： | 国防科技大学电子科学与工程学院空间电子信息技术研究所,湖南,长沙,410073 |
| |
| 基金项目： | 国家自然科学基金(60402032)，国防预研基金(41303050203)资助课题 |
| |
| 摘 要： | 详细分析了直升机目标回波信号的多普勒谱的构成,针对直升机目标和固定翼飞机目标多普勒谱的差别,提取了两种微多普勒特征用于识别直升机目标和固定翼飞机目标,其中一种利用了直升机回波信号正负多普勒频谱能量的不对称性,另外一种利用了机身回波信号能量与旋翼回波信号能量的对比,使用仿真数据和试验测试录制的数据计算结果表明,该方法具有很好的识别效果。
|
| 关 键 词： | 直升机目标 雷达目标识别 微多普勒 旋翼 |
| 文章编号： | 1001-506X(2006)03-0372-04 |
| 修稿时间： | 2004年12月14 |
Identification of airtarget based on the micromotion radar signatures of blades |
| |
| CHEN Hang-yong,LI Xiang,GUO Gui-rong,JIANG Bin.Identification of airtarget based on the micromotion radar signatures of blades[J].System Engineering and Electronics,2006,28(3):372-375. |
| |
| Authors: | CHEN Hang-yong LI Xiang GUO Gui-rong JIANG Bin |
| |
| Abstract: | The composition of micro-Doppler spectrum is first analyzed for echo-signals from a helicopter.Then Doppler spectrum signatures are investigated for echo-signals from a helicopter and those from an immobile-blade aircraft.Based on the differences of Doppler spectrum signatures,two micro-Doppler features are presented for helicopter identification.One feature describes the asymmetry of Doppler spectrum distribution,and the other shows the contrast between the energy of echo-signals from fuselage and that from blades.Finally a simulation with synthetic data and experiment data is presented,and the simulation result shows the validity of the method. |
| |
| Keywords: | helicopter radar target recognition micro-doppler blade |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
