Phase Unwrapping for Multibaseline SAR Interferometry Using Optimized Data

摘要：

In this paper,a new method of the multibaselineinterferometric SAR phase unwrapping based on the model ofthe optimum data vector is introduced.The method constructsthe multibaseline optimal weighted joint data (MOWJD) vectorby taking advantage of the coherence information of neighboringpixels in order to adaptively coregister the SAR images and thenemploy the projection of the joint signal subspace onto thecorresponding noise subspace to estimate the unwrappedinterferometric phases (or the terrain heights).Theoreticalanalysis and experimental results show that the method canprovide the accurate unwrapped interferometric phase even ifthe coregistration error is close to one pixel.The effectivenessand robustness of the technique is verified by simulated data.

作者: Zhijie Mao Guisheng Liao

作者单位: National Lab of Radar Signal Processing,Xidian Univ.,Xian710071,China;Xian Communication Inst.,Xi National Lab of Radar Signal Processing,Xidian Univ.,Xian710071,China

会议类型: 国际会议

会议名称: 第八届电磁理论、天线及传播国际研讨会

会议地点: 昆明

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）