西安电子科技大学学报（自然科学版）2011，Vol.38Issue(4)：77-81,88,6.DOI:10.3969/j.issn.1001-2400.2011.04.014
一种InSAR干涉相位图的自适应滤波算法
New adaptive noise suppressing method for interferometric phase images
摘要
Abstract
This paper proposes a new adaptive noise suppressing method for interferometric phase images. The key point of noise filtering for interferometric phase images is the selection of the independent and identically distributed (I. I. D.) samples. The proposed method determines filtering samples with the criterion of the minimum phase differences according to the region-growing strategy, and then computes the filtered phase in the complex domain. Due to the minimum phase difference, the proposed method selects the filtering samples that obey the I. I. D. Assumption more accurately, thus improving the filtering performance. Finally, experiments carried out on simulated and real data confirm that the proposed method possesses a better filtering performance and has the ability to suppres the noise effectively while maintaining the interferogram details adequately.关键词
干涉合成孔径雷达/干涉相位图/相位滤波/自适应区域增长Key words
synthetic aperture radar interferometry (InSAR)/ interferogram/ phase filtering/ adaptive region growing分类
信息技术与安全科学引用本文复制引用
郭交,李真芳,刘艳阳,保铮..一种InSAR干涉相位图的自适应滤波算法[J].西安电子科技大学学报（自然科学版）,2011,38(4):77-81,88,6.基金项目
国家自然科学基金资助项目(60802074,41001282) （60802074,41001282）
教育部新世纪优秀人才支持计划资助项目 （）
中央高校基本科研业务费专项资金资助项目(JY10000902011) （JY10000902011）
