|
|||||
|
|
| 基于时频分析的双通道SAR自旋目标检测 | |
| 引用本文： | 张伟,童创明,张群,张亚楠.基于时频分析的双通道SAR自旋目标检测[J].航空学报,2011,32(10):1914-1923. |
| 作者姓名： | 张伟 童创明 张群 张亚楠 |
| 作者单位： | 1. 空军工程大学导弹学院,陕西三原,713800 2. 空军工程大学导弹学院,陕西三原 713800;东南大学毫米波国家重点实验室,江苏南京 210096 3. 空军工程大学电讯工程学院,陕西西安,710077 |
| 基金项目： | 国家自然科学基金(60971100); 毫米波国家重点实验室基金(K200907)~~ |
| 摘 要： | 强地杂波背景给微动目标检测带来很大困难,为此在详细分析距离向压缩数据域自旋目标回波特性基础上,提出了基于双通道合成孔径雷达相位中心偏置天线(SAR/DPCA)和沿航迹干涉(ATI)杂波抑制的两类自旋目标检测方法,并作比较分析.在DPCA模式下,微多普勒频率沿频率(m-D)轴有一整体平移量,其与目标自旋中心的方位向坐标成... |
| 关 键 词： | 合成孔径雷达 相位中心偏置天线 沿航迹干涉 微多普勒 时频变换 |
| 收稿时间： | 2011-01-17; |
Rotating Targets Detection with Dual-channel SAR Based on Time-frequency Analysis |
|
| ZHANG Wei,TONG Chuangming,ZHANG Qun,ZHANG Ya ' nan.Rotating Targets Detection with Dual-channel SAR Based on Time-frequency Analysis[J].Acta Aeronautica et Astronautica Sinica,2011,32(10):1914-1923. | |
| Authors: | ZHANG Wei TONG Chuangming ZHANG Qun ZHANG Ya ' nan |
| Institution: | ZHANG Wei1,TONG Chuangming1,2,ZHANG Qun3,ZHANG Ya'nan1 1.Missile Institute,Air Force Engineering University,Sanyuan 713800,China 2.State Key Laboratory of Millimeter Waves,Southeast University,Nanjing 210096,China 3.Telecommunications Engineering Institute,Xi'an 710077,China |
| Abstract: | It is very difficult to detect micro-motion targets against a strong ground clutter background.In order to solve this problem,this paper proposes respectively the methods of dual-channel synthetic aperture radar/displaced phase center antenna(SAR/DPCA) and along-track interferometry(ATI) based on a detailed study of the echo features of rotating targets in the range-compressed data domain.Under the mode of SAR/DPCA,the entire micro-Doppler(m-D) signature undergoes a shift along the frequency axis which is p... |
| Keywords: | synthetic aperture radar displaced phase center antenna along-track interferometry micro-Doppler time-frequency transform |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《航空学报》浏览原始摘要信息 | |
| 点击此处可从《航空学报》下载免费的PDF全文 | |