李玉婷,谢先明

• 1:桂林电子科技大学信息与通信学院

摘要(Abstract)：

针对干涉相位图解缠问题,该文提出一种基于掩膜图的无损卡尔曼滤波与粒子滤波相结合的相位解缠算法,并结合基于AMPM局部相位梯度估计技术快速和精确地从复干涉相位图中获取相位梯度等信息以及最大堆排序算法从高质量像元到低质量像元的路径快速地搜索最佳待解缠像元,减少在路径跟踪过程中所消耗的时间。该文算法不仅可以高效、精确地在相位解缠的同时进行干涉图滤波,降低前置预滤波器的难度与复杂度,甚至可以在解缠高信噪比干涉相位图时免去预滤波的过程,而且在一定程度上能将相位解缠误差限制在低质量像元区域,减少误差传递效应,提高相位解缠的精度,在实测数据和模拟数据实验结果中表明:比现有的传统算法如枝切法等InSAR干涉相位解缠算法有更高的精度和稳健性。

关键词(KeyWords)： 相位解缠;掩膜图;最大堆排序;无味卡尔曼滤波器;粒子滤波器;相位梯度估计

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41661092,61461011);; 广西自然科学基金重点项目(2016GXNSFDA380009);广西自然科学基金项目(2014GXNSFBA118273);; 广西无线宽带通信与信号处理重点实验室2014/2015年主任基金项目(GXKL061503);; 认知无线电教育部重点实验室主任基金项目;; 认知无线电与信息处理省部共建教育部重点实验室2017年度主任基金项目(CRKL170108);; 2017年桂林电子科技大学研究生科研创新项目(2017YJCX23)

作者(Author): 李玉婷,谢先明

DOI: 10.16251/j.cnki.1009-2307.2019.08.004

参考文献(References)：

• [1]黄海风,张永胜,董臻.星载合成孔径雷达干涉新技术[M].北京:科学出版社,2016.(HUANG Haifeng,ZHANG Yongsheng,DONG Zhen.New technology of spaceborne synthetic aperture radar interferometry[M].Beijing:Science Press,2016.)
• [2]王青松,黄海风,董臻.星载干涉合成孔径雷达:高效高精度处理技术[M].北京:科学出版社,2012.(WANGQingsong,HUANG Haifeng,DONG Zhen.Spaceborne interferometric synthetic aperture radar:high-efficiency and high-precision processing techniques[M].Beijing:Science Press,2012.)
• [3]GOLDSTEIN R M,ZEBKER H A,WERNER C L.Satellite radar interferometry:two-dimensional phase unwrapping[J].Radio Science,1988,23(4):713-720.
• [4]OSMANOGLU B,DIXON T H,WDOWINSKI S,et al.On the importance of path for phase unwrapping in synthetic aperture radar interferometry[J].Applied Optics,2011,50(19):3205-3220.
• [5]李芳芳,占毅,胡东辉,等.一种基于质量指导的InSAR相位解缠快速实现方法[J].雷达学报,2012,1(2):196-202.(LI Fangfang,ZHAN Yi,HU Donghui,et al.A fast method for INSAR phase unwrapping based on quality guide[J].Journal of Radars,2012,1(2):196-202.)
• [6]王霖郁,李辉.一种枝切法和质量图相结合的InSAR相位解缠算法[J].应用科技,2016,43(5):49-53.(WANGLinyu,LI Hui.An algorithm based on the branch-cut and quality map for InSAR phase unwrapping[J].Applied Science and Technology,2016,43(5):49-53.)
• [7]KAUFMANN G H,GALIZZI G E,RUIZ P D.Evaluation of a preconditioned conjugate-gradient algorithm for weighted least-squares unwrapping of digital speckle-pattern interferometry phase maps[J].Applied Optics,1998,37(14):3076-3084.
• [8]GHIGLIA D C,ROMERO L A.MinimumLP-norm two dimensional phase unwrapping[J].Journal of the Optical Society of America A,1996,13(10):1999-2013.
• [9]陈强,杨莹辉,刘国祥,等.基于边界探测的InSAR最小二乘整周相位解缠方法[J].测绘学报,2012,41(3):441-448.(CHEN Qiang,YANG Yinghui,LIU Guoxiang,et al.InSAR phase unwrapping using least squares method with integer ambiguity resolution and edge detection[J].Acta Geodaetica et Cartographica Sinica,2012,41(3):441-448.)
• [10]LOFFELD O,NIES H,KNEDLIK S,et al.Phase unwrapping for SAR interferometry:a data fusion approach by Kalman filtering[J].IEEE Transactions on Geoscience&Remote Sensing,2008,46(1):47-58.
• [11]NIES H,LOFFELD O,WANG R.Phase unwrapping using 2D-Kalman filter potential and limitations[C]∥IEEE Conference on International Geoscience and Remote Sensing Symposium.Piscataway,New Jersey,USA:IEEE,2008:1213-1216.
• [12]XIE Xianming.Iterated unscented Kalman filter for phase unwrapping of interferometric fringes[J].Optics Express,2016,24(17):18872-18897.
• [13]XIE Xianming,LI Yinghui.Enhanced phase unwrapping algorithm based on unscented Kalman filter,enhanced phase gradient estimator,and path-following strategy[J].Applied Optics,2014,53(18):4049-4060.
• [14]XIE Xianming,PI Yiming.Phase noise filtering and phase unwrapping method based on unscented Kalman filter[J].Journal of Systems Engineering and Electronics,2011,22(3):365-372.
• [15]XIE Xianming,ZENG Qingning.Efficient and robust phase unwrapping algorithm based on unscented Kalman filter,the strategy of quantizing paths-guided map,and pixel classification strategy[J].Applied Optics,2015,54(31):9294-9307.
• [16]MARTINEZ-ESPLA J J,MARTINEZ-MARIN T,LOPEZ-SANCHEZ J M.A particle filter approach for InSAR phase filtering and unwrapping[J].IEEETransactions on Geoscience&Remote Sensing,2009,47(4):1197-1211.
• [17]谢先明,皮亦鸣,彭保.一种基于UPF的干涉SAR相位展开方法[J].电子学报,2011,39(3):705-709.(XIEXianming,PI Yiming,PENG Bao.Phase unwrapping:an unscented particle filtering approach[J].Acta Electronica Sinica,2011,39(3):705-709.)
• [18]何儒云,王耀南,毛建旭,等.基于支持向量机的InSAR干涉图相位解缠算法[J].系统仿真学报,2008,20(6):1493-1496.(HE Ruyun,WANG Yaonan,MAOJianxu,et al.Region-cutting InSAR phase unwrap-ping algorithm based on support vector machine[J].Journal of System Simulation,2008,20(6):1493-1496.)
• [19]代高兴,谢先明.基于修正嵌入式容积卡尔曼滤波的相位展开算法[J].测绘学报,2017,46(12):1998-2005.(DAI Gaoxing,XIE Xianming.A fresh phase unwrapping method based on modified embedded cubature Kalman filter[J].Acta Geodaetica et Cartographica Sinica,2017,46(12):1998-2005.)
• [20]杨珺.粒子滤波算法研究及应用[D].西安:西安理工大学,2008.(YANG Jun.Particle filter algorithm research and application[D].Xi’an:Xi’an University of Technology,2008.)