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基于重复轨道的合成孔径雷达差分干涉测量(D-InSAR,Differential Interferometric SAR)技术自问世以来,就被立即成为研究重点并在许多领域得到应用。但是常规D-InSAR技术易受时间、空间失相干与大气延迟等影响而有时无法得到可靠的形变信息,因此难以在实践中得到常态化应用。永久散射体技术与小基线集技术的出现,有效地克服了上述问题的制约。本文融合了两种技术的优点,介绍了多时相干涉SAR技术的关键处理步骤,并基于多时相干涉SAR技术提取了太原市2005～2009年间的形变信息。 更多还原

【Abstract】 Since differential synthetic aperture radar interferometry(D-InSAR) based on repeat observation technology came out in 1990s,it has become a hot research topic immediately and been applied in many fields afterwards.However,the conventional D-InSAR technique is vulnerable to be affected by spatial,temporal decorrelations and the atmospheric variations,and sometimes can not obtain reliable deformation,therefore it is difficult to put this technique into operational uses in practice.Permanent scatt... 更多还原