Benefit of Using Multiple Baselines and Multiple Aspects for SAR Interferometry of Urban Areas
Benefit of Using Multiple Baselines and Multiple Aspects for SAR Interferometry of Urban Areas
复制标题
DOI：
10.1109/jstars.2014.2311505
复制
发表时间：
2014-04
影响因子：
5.5
通讯作者：
M. Schmitt;Johannes L. Schönberger;Uwe Stilla
中科院分区：
文献类型：
--
作者：
M. Schmitt;Johannes L. Schönberger;Uwe Stilla
本文对利用合成孔径雷达干涉法重建城市地表模型的多方位、多基线的效益进行了大量的真实数据实验。这些实验是在最近提出的重建框架内进行的，该框架允许融合几乎任意配置的多方位多基线InSAR数据。基于机载分米级毫米波图像的结果证明并量化了多基线有助于解决相位模糊问题，同时多个方面减少了受雷达阴影影响的场景部分。此外，固有的冗余性显著提高了可实现的重建精度，这是相对于常规单方位单基线SAR干涉测量中常见的重建误差进行评估的。
In this paper, extensive real-data experiments for the investigation of the benefit of exploiting multiple aspects and multiple baselines for the reconstruction of urban surface models by synthetic aperture radar interferometry are documented. These experiments are carried out within a recently proposed reconstruction framework that allows the fusion of almost arbitrary configurations of multi-aspect multi-baseline InSAR data. The results based on airborne decimeter-resolution millimeterwave imagery prove and quantify that multiple baselines help to solve the phase ambiguity problem, while multiple aspects reduce the parts of the scene affected by radar shadowing. In addition, the inherent redundancy provides a significant improvement in the achievable reconstruction accuracy, which is evaluated relative to the reconstruction error common for conventional single-aspect single-baseline SAR interferometry.