：为有效减少大面积、多套干涉数据基线估计所需的地面控制点数量、降低接边处反演高程的差异，提出考虑干涉

相位偏置的犐狀犛犃犚区域网平差基线估计方法。采用中国科学院电子学研究所机载犐狀犛犃犚系统获取的多套干涉数据进行

了区域网平差基线估计试验，利用少量地面控制点完成了各套干涉数据的基线估计，减小接边处反演高程的差异，验证

该基线估计方法的有效性。-Baseline Estimation is important for deriving accurate heights in processing of InSAR（Interferometric Synthetic Aperture Radar）. It needs large quantities of ground control points with proper placements to estimate baseline parameters for multiple InSAR data that cover large areas if adopting baseline estimation algorithm for each pair of data. What’s more, there will be great difference between heights derived from different data due to the errors of baseline estimation. A new baseline estimation algorithm with block adjustment considering phase offset was proposed to reduce the needed ground control points and the difference between heights derived from different data. The experiments of baseline estimation with block adjustment were done with multiple pairs of InSAR data obtained by airborne InSAR system researched by Institute of Electronics, Chinese Academy of Sciences. It used less ground control points, and the difference between heights in overlap areas was reduced, as validate