中文摘要：

以2008年改则地震为例，利用InSAR和MAI技术分别获取雷达视线向和方位向的形变量，并采用InSAR＋AZI（模型i）与Multi—LOS（模型2）两种模型解算改则地震三维同震形变场。结果发现，在东西、垂向上两种模型解算结果较为一致；南北方向模型1的结果基本符合实际，模型2的结果严重失真。

英文摘要：

Taking the 2008 Gaize earthquake as an example, we use InSAR and MAI techniques to measure line of sight （LOS） and azimuth （AZI） deformations, respectively. InSAR ＋ AZI （ model 1 ） and Multi-LOS （ model 2） models are applied to reconstruct 3D coseismic deformation fields, Compared with simulations, we discover that the deformations in east-west, vertical directions of the two models are consistent with each other; however, in north-south direction, the results of model 1 are tally with the actual situation, while massive distortions occur in that of model 2.