四川大学学报：工程科学版2012，Vol.44Issue(6)：154-158,216,6.
一种利用无网格技术和局部频率估计的相位展开算法
A Phase Unwrapping Algorithm Adopts Local Frequency Estimation and Mesh-less Method
摘要
Abstract
To improve the processing precision of phase unwrapping in interferometric synthetic aperture radar (InSAR), the phase difference was replaced by local frequency estimation. The local frequency estimation could reflect topographic change more accurately than phase difference. And to prevent the residues error spread all over the image, the mesh-less method was introduced to avoid error propagation effectively by dividing local support domain in interferogram. Both simulation and experimental results showed that the pro- posed method can reduce the influence of the error, and improves the precision of the phase unwrapping.关键词
干涉合成孔径雷达/相位展开/局部频率估计/无网格法Key words
InSAR/phase unwrapping/local frequency estimation/mesh-less method分类
信息技术与安全科学引用本文复制引用
张妍,冯大政,曲小宁..一种利用无网格技术和局部频率估计的相位展开算法[J].四川大学学报：工程科学版,2012,44(6):154-158,216,6.基金项目
国家自然科学基金资助项目 （）
