利用GPS观测数据对轨道误差进行了纠正，最终得到的同震位移场与GPS数据有着很好的一致性。
The errors existed in the interferogram were analyzed and the orbit residual is removed by GPS observations.
根据汶川地震同震静态位移我们计算了周围地区一些断层的库仑应力变化，并据此评价了震后周围地区断层和地震的活动性。
Coulomb stress changes caused by the Wenchuan earthquake are calculated and earthquake activity is evaluated using finite element method for some faults around the area.
根据汶川地震同震静态位移我们计算了周围地区一些断层的库仑应力变化，并据此评价了震后周围地区断层和地震的活动性。
Coulomb stress changes caused by the Wenchuan earthquake are calculated and earthquake activity is evaluated using finite element method for some faults around the area.
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