| 面向地面运动目标检测的SAR图像分辨率选取 |
| |
| 引用本文： | 蔚婧,杨志伟,李亚安.面向地面运动目标检测的SAR图像分辨率选取[J].应用科学学报,2012,30(5):493-497. |
| |
| 作者姓名： | 蔚婧 杨志伟 李亚安 |
| |
| 作者单位： | 1. 西北工业大学航海学院，西安710072
2. 西安电子科技大学雷达信号处理国家重点实验室，西安710071 |
| |
| 摘 要： | 在合成孔径雷达地面运动目标检测技术中，SAR图像分辨率的选取直接影响运动目标的检测性能. 为此，该文提出一种适合于运动目标检测的SAR图像分辨率选取方案. 结合感兴趣的目标大小从运动目标检测概率的角度出发，对不同SAR图像分辨率情况下运动目标的检测性能进行分析，以一种具有典型反射截面积的运动目标为例，给出不同目标尺寸条件下的最佳SAR图像分辨率. 该方案可广泛应用于工程实践.
|
| 关 键 词： | 地面运动目标检测 合成孔径雷达 图像分辨率 沿航向干涉 检测概率 |
| 收稿时间： | 2011-06-21 |
| 修稿时间： | 2011-12-19 |
SAR Image Resolution Selection for Ground Moving Target Indication |
| |
| YU Jing
,
YANG Zhi-wei
,
LI Ya-an.SAR Image Resolution Selection for Ground Moving Target Indication[J].Journal of Applied Sciences,2012,30(5):493-497. |
| |
| Authors: | YU Jing YANG Zhi-wei LI Ya-an |
| |
| Institution: | 1. College of Marine, Northwestern Polytechnical University, Xi’an 710072, China;
2. National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China |
| |
| Abstract: | In the technique of ground moving target indication using SAR (SAR-GMTI), the image resolution has great impact on the target detection performance. A SAR image resolution selection scheme is proposed in this paper. Performance of target detection at different image resolutions is analyzed in view of the detection probability. Based on the analysis and taking a target with classical RCS as an example, optimal SAR resolution for different target size is given. Simulation results indicate that the scheme can be widely used in engineering practice. |
| |
| Keywords: | ground moving target indication (GMTI) synthetic aperture radar (SAR) image resolution along-track interferometry (ATI) detection probability |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《应用科学学报》浏览原始摘要信息 |
| 点击此处可从《应用科学学报》下载免费的PDF全文 |
