机载InSAR图像配准算法比较研究
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摘要
复图像配准的关键是选择合适的匹配测度函数,但匹配测度函数对不同地形的适应性有待于研究。本文首先介绍了复相关系数法、实相关系数法、频谱极大值法和平均波动函数法的原理和机载双天线In SAR数据的配准流程,然后分别对比分析4种测度函数在机载In SAR山地和平地数据的精度和可靠性。实验结果表明,复相关系数法和频谱极大值法分别在山地和平地区域获得稳健、高精度的配准结果
The key to co-registration of complex images is in selecting appropriate match measures, but the adaptability of match measures at different terrain needs further study. Firstly, the principle of complex correlation coefficient, real correlation coefficient, maximum spectrum estimate method, average fluctuation function and the procedure of dual antenna airborne In SAR data processing are introduced in this paper. Secondly, the accuracy and reliability of four match measures are analyzed and compared using the airborne In SAR data in mountain and flatarea. Experimental results show that the complex correlation coefficient and maximun spectrum estimate method respectively get robust and high accuracy co-registration result in mountain region and flat region.
The key to co-registration of complex images is in selecting appropriate match measures, but the adaptability of match measures at different terrain needs further study. Firstly, the principle of complex correlation coefficient, real correlation coefficient, maximum spectrum estimate method, average fluctuation function and the procedure of dual antenna airborne In SAR data processing are introduced in this paper. Secondly, the accuracy and reliability of four match measures are analyzed and compared using the airborne In SAR data in mountain and flatarea. Experimental results show that the complex correlation coefficient and maximun spectrum estimate method respectively get robust and high accuracy co-registration result in mountain region and flat region.
引文
[1]靳国旺,徐青,张红敏.合成孔径雷达干涉测量[M].北京:国防工业出版社,2014.
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[8]Qian Lin,John F.Vesecky,Howard A.Zebker,New Approaches in Interferometric SAR Data processing[J].IEEE Transactions on Geoscience and Remote Seising,1992,30(3):560-567.
[9]王青松,瞿继双,黄海风,等.联合实、复相关函数的干涉SAR图像配准方法[J].测绘学报,2012,41(4):563-569.
[10]靳国旺,徐青,朱彩英,等.航天In SAR复影像对的自动快速配准[J].测绘学院学报,2005,22(2):128-130.
[2]张登荣,俞乐.一种高精度的干涉雷达复数影像配准方法[J].遥感学报,2007,11(4):563-567.
[3]肖国超,朱彩英.雷达摄影测量[M].北京:地震出版社,2001.
[4]Tang Zhi,Zhou Yingqing,LI Jingwei.Study on Coregistration Method Based on Correlation Coefficient for In SAR Signal Procesing[J],2005,3867-3870.
[5]曾琪明,解学通.基于谱运算的复相关函数法在干涉复图像配准中的应用[J].测绘学报,2004,33(2):127-131.
[6]GABRIEl A K,GOLDSTEIN R M.Crossed Orbit Interferometry:Theory and Experimental Results from SIR-B[J].International Journal of Remote Sensing,1988,9(5):857-872.
[7]赵志伟,杨汝良,祁海明.一种改进的星载干涉SAR复图像最大频谱配准算法[J].测绘学报,2008,37(1):64-69.
[8]Qian Lin,John F.Vesecky,Howard A.Zebker,New Approaches in Interferometric SAR Data processing[J].IEEE Transactions on Geoscience and Remote Seising,1992,30(3):560-567.
[9]王青松,瞿继双,黄海风,等.联合实、复相关函数的干涉SAR图像配准方法[J].测绘学报,2012,41(4):563-569.
[10]靳国旺,徐青,朱彩英,等.航天In SAR复影像对的自动快速配准[J].测绘学院学报,2005,22(2):128-130.