Abstract :
Ground-based SAR(GB-SAR) is an important technical means in remote sensing deformation monitoring. However, atmospheric phase disturbances seriously affect the accuracy and reliability of the deformation retrieval. This paper improved the atmospheric phase correction algorithm proposed by Linhsia Noferini et al. and obtained a new atmospheric phase compensation algorithm based on corner reflection. The corner reflections were used to detect the strong permanent scatterers(PS) by double threshold detection method. Then the atmospheric phase screen can be got by interpolation and ploynomial fitting. After that, the corrected deformation phases also can be obtained. Finally, the slope deformation monitoring experiment was carried out to verify the feasibility and accuracy of the algorithm.
