PSInSAR公共主图像优化选取方法研究

在综合考虑空间垂直基线、时间基线和多普勒质心频率基线对干涉图去相关影响的基础上，分析和研究了时序SAR图像中优化选取一幅或多幅公共主图像的两种实用模型；结合具体的ERS-1／2SLCSAR图像，开展了PS InSAR公共主图像的优化选取试验，提出了利用基于DESCW和综合相关系数γ^m的公共主图像优化选取方法在一系列时序SAR图像中优化选取一幅或多幅公共主图像的实甩化数据处理流程。理论分析和计算数据充分表明，该数据处理流程是可行的。

A Study on the Method to Optimize and Select Common Master Images in PS InSAR

This paper analyzes and investigates two practial models to optimize and select a common master image or more from a series of SAR images based on jointly considering the impact of spacial perpendicular baselines, temperal baselines and doppler centers frequency baselines on the decorrelation of an interferogram, then carries out a test about optimal selection of common master images in PS InSAR and presents the pratical data processing flow to optimize and select common master images from a series of SAR images based on the DESCW and the integrated correlation coefficient γ^m with a series of ERS-1/2 SLC SAR images. Theoretical analysis and calculation of the full data show that the data processing flow is feasible.