地基差分干涉微形变监测实验系统
利用Agilent矢量网络分析仪（VNA）测量S参数的端口与x波段天线相连，并置于滑轨上合成方位向孔径，构成基于低成本实验室通用设备的地基合成孔径雷达（Ground Based Synthetic Aperture Radar，GBSAR）系统，且具备和实际雷达系统同样有效的二维成像功能。利用该系统对目标进行干涉成像，然后得出两幅图像的相位差，结合相位与形变量之间的几何模型，实现了目标的形变监测。实验证明，该地基差分干涉微形变监测系统对于毫米级的微形变具有显著的分辨能力。...
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| Published in | 电子技术应用 Vol. 41; no. 9; pp. 82 - 84 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国科学院微波遥感技术重点实验室,空间科学与应用研究中心,北京100190
2015
中国科学院大学,北京100190%中国科学院微波遥感技术重点实验室,空间科学与应用研究中心,北京100190 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0258-7998 |
| DOI | 10.16157/j.issn.0258-7998.2015.09.022 |
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| Summary: | 利用Agilent矢量网络分析仪（VNA）测量S参数的端口与x波段天线相连，并置于滑轨上合成方位向孔径，构成基于低成本实验室通用设备的地基合成孔径雷达（Ground Based Synthetic Aperture Radar，GBSAR）系统，且具备和实际雷达系统同样有效的二维成像功能。利用该系统对目标进行干涉成像，然后得出两幅图像的相位差，结合相位与形变量之间的几何模型，实现了目标的形变监测。实验证明，该地基差分干涉微形变监测系统对于毫米级的微形变具有显著的分辨能力。 |
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| Bibliography: | Cai Yongjun,Zhang Xiangkun,Jiang Jingshan,Zhu Jie （1. Key Laboratory of Microwave Remote Sensing, Chinese Academy of Sciences Center for Space Science and Applied Research,Beijing 100190,China; 2.University of Chinese Academy of Sciences, Beijing 100049, China） differential interferometry ; micro-deformation ; synthetic aperture radar 11-2305/TN In this paper, the vector network analyzer and X-band antenna are combined to be put on a track to synthesize aperture of azimuth direction, which builds a low-cost laboratorial ground based synthetic aperture radar system which also has the capacity of 2D imaging. Based on this system, the experiment of interference imaging of ground targets is conducted, and then the phase difference of two images is extracted, lastly, the deformation or displacement of targets can be computed based on the geometric modeling between phase difference and deformation quantity. Through the practical experiment, the ground based differential interferometry micro-deformation detection exper |
| ISSN: | 0258-7998 |
| DOI: | 10.16157/j.issn.0258-7998.2015.09.022 |