摘要
干涉合成孔径雷达已广泛应用于产生高精度的数字高度模型、测量地表形变等领域 .介绍了干涉合成孔径雷达的基本原理和相关领域的历史发展 ,并就干涉合成孔径雷达技术的处理过程总结了如何利用干涉合成孔径雷达技术获取地表三维信息 .对处理过程中的关键技术——干涉图象的相位展开做了详细讨论 ,概括、分析、比较了近年来发表的大量的相位展开算法 ,总结了各方法的优缺点 ,指出了问题所在 .最后就国内、外在未来研究与应用方面的发展趋势及前景做了简要论述 .
Interferometric Synthetic Aperture Radar (InSAR) techniques are widely used to generate accurate digital elevation model (DEM), and to measure displacement of the earth's surface. Main principle and development of InSAR are simply described. How to obtain the 3D terrain information using InSAR technique is summarized. Phase unwrapping for interferometric images is the most important and difficult step in the processing chain, different algorithms published recently are compared, their advantage and disadvantage are analyzed here. The potential development in theory research and application is discussed.
出处
《自动化学报》
EI
CSCD
北大核心
2002年第4期527-534,共8页
Acta Automatica Sinica
基金
国家自然科学基金 ( 6 0 1750 0 7)
中欧重大国际科技合作项目 ( IST- 1999- 116 76 )资助
