ITR: Post-Processing Strategies for Radar Differential Interferometry

卫星雷达干涉测量（InSAR）提供比任何其他传统大地测量技术更精细的分辨率和更大的空间覆盖的地表变形测量，并迅速发展成为测量与自然和人为灾害相关的变形的关键工具。InSAR测量的常规生产是InSAR处理软件的普遍可用性的结果，每个包产生相同的通用最终产品-差分干涉图。尽管最近的InSAR研究已经考虑了综合使用数十个干涉图来揭示复杂和微妙的地表变形，但InSAR地球科学社区还没有现成的后处理软件包。该项目涉及InSAR后处理软件工具包的研究和开发，该工具包采用了当前InSAR软件所缺少的三种一般策略：用于完整地表位移测量的多卫星轨迹拼接，用于降噪的干涉图叠加，以及用于测量连续、非均匀变形的InSAR时间序列分析。该软件是模块化的，用C和Fortran编码，从一系列基于unix的shell脚本中调用，并且通常独立于用于生成差分干涉图的InSAR软件开发。在需要特定处理器信息的地方，该软件与喷气推进实验室ROI_PAC软件包集成。后处理工具包是通过GNU通用公共许可证发布的。

EAR-0219293Sean M. BuckleySatellite radar interferometry (InSAR) provides earth-surface deformation measurements at finer resolution and greater spatial coverage than any other traditional geodetic technique and has quickly developed into a critical tool for measurement of deformation associated with natural and anthropogenic hazards. The routine production of InSAR measurements is a consequence of the general availability of InSAR processing software with each package producing the same general final product - the differential interferogram. Although recent InSAR research has considered the ensemble use of tens of interferograms to reveal complex and subtle surface deformation, a post-processing software package is not readily available to the InSAR geoscience community. This project involves the research and development of an InSAR post-processing software toolkit employing three general strategies missing from current InSAR software: mosaicking of multiple satellite tracks for complete surface displacement measurement, interferogram stacking for noise reduction, and InSAR time-series analysis for measurement of continuous, non-uniform deformation. The software is modular, coded in C and Fortran, called from a series of Unix-based shell scripts and developed generally independent of the InSAR software used to generate the differential interferograms. Where processor-specific information is required, the software is integrated with the Jet Propulsion Laboratory ROI_PAC software package. Distribution of the post-processing toolkit is through a GNU General Public License.