一种新的InSAR合成相位展开算法

A New Synthesis Algorithm for InSAR Phase Unwrapping

提出一种新的InSAR二维相位展开方法。该合成算法充分利用了枝切法和有限元方法的优点。方法的核心是确定相位可靠区域与不可靠区域,有效避免了相位误差从不可靠区域向可靠区域的传递,保证了可靠区域相位展开结果的精度,较大程度上提高了整体的相位展开结果精度。仿真数据实验结果验证了这种合成算法的有效性。

This paper presents a new two-dimensional hybrid algorithm for interferometric synthetic aperture radar phase unwrapping by applying the branch-cut and finite element method. The core theory of this method is to identify reliable and unreliable areas, making full use of the advantage of the branch-cut and finite element method to avoid the phase errors spreading all over the interferogram. Simulation experiment results demonstrate the precision and efficiency of the procedure.