| 摘要: |
| 地基合成孔径雷达干涉技术(GB-InSAR)是全新的形变监测技术，具有高度自动化、全天时和全天候监测以及高分辨率和高精度等优势。为推进GB-InSAR在我国海岛海岸带监测中的应用，文章概述GB-InSAR的技术原理和监测流程，分析其配准图像、生成干涉图和相干图、干涉图滤波、相位解缠、大气相位校正以及框架基准确定和地理编码等关键技术。研究结果表明：GB-InSAR将步进频率连续波技术、合成孔径雷达技术以及雷达干涉测量技术有效融合，在采集目标形变信息方面具有广阔的应用前景；我国应积极推进GB-InSAR在海岛海岸带监测中的研究和应用，为海岛海岸带管理提供有力的技术支撑。 |
| 关键词: 地基合成孔径雷达干涉技术 海岛海岸带 海洋监测 形变监测 动态监视监测 |
| DOI： |
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| 基金项目:海岛监视监测研究（SY0518002）；海底电缆工程高精度多元数据获取及分析技术研究（JYYKJXM\[2017\]003）；测绘新技术在海上工程勘察中的应用研究 |
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| Monitoring Process and Key Technology of GB-InSAR |
| MA Deming,LIU Yanxiong,XU Wenxue,WANG Yanbing,GAO Xingguo |
| The First Institute of Oceanography，SOA;College of Environmental Science and Engineering，Ocean University of China;State Grid Economic and Technological Research Institute Co.,LTD;Shandong Electric Power Engineering Consulting Institute Co.,LTD |
| Abstract: |
| Ground-based Synthetic Aperture Radar Interferometry (GB-InSAR) is a new deformation monitoring technology with advantages of high automation,all-day and all-weather monitoring,high resolution and high precision.In order to promote the application of GB-InSAR in the monitoring of islands and coastal zone in China,the technical principles and monitoring processes of GB-InSAR were summarized.Key techniques such as image registration,interferogram and coherence map generation,interferogram filtering,phase unwrapping,atmospheric phase correction,frame reference determination and geo-coding were analyzed.The results showed that GB-InSAR effectively integrated stepped frequency continuous wave technology,synthetic aperture radar technology and radar interferometry.It had a broad application prospect in collecting deformation information of target.The research and application of GB-InSAR in islands and coastal zone monitoring should be actively promoted in China.It would provide strong technical support for the management of islands and coastal zone. |
| Key words: GB-InSAR,Islands and coastal zone,Marine monitoring,Deformation monitoring,Dynamic monitoring |
