刘辉;徐青;靳国旺;张红敏;

• 1:华北水利水电大学测绘与地理信息学院
• 2:信息工程大学地理空间信息学院

摘要(Abstract)：

针对单片定位时的不满秩方积求解问题,该文根据SAR图像距离投影原理,引入DEM约束条件,利用R-D模型由像点二维坐标迭代答解相应地面点三维坐标。通过SAR构像模型的几何分析,引入地面坡度角和起始高程点对应的俯角,推导了SAR图像单片定位的收敛条件和收敛速度关系式。分析得到迭代发散时的条件正好对应着SAR图像叠掩产生的条件,又进一步分析并设计了单幅SAR图像叠掩区域定位方案,从最高端给初始值,依次向下求解,通过叠掩区域的位置信息以及SAR构像模型中表示斜距条件的弧线在地面上方还是下方的判断,分别解算多个地面点坐标。利用点目标仿真数据和山区实际数据进行了实验,验证了该文方案的正确性、有效性和实用性。

关键词(KeyWords)： 单片定位;数字高程模型;收敛条件;收敛速度;叠掩

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41071296,41474010,61401509);; 河南省高等学校重点科研项目(19A420008)

作者(Authors): 刘辉;徐青;靳国旺;张红敏;

DOI: 10.16251/j.cnki.1009-2307.2018.10.004

参考文献(References)：

• [1]靳国旺,张红敏,徐青.雷达遥感测绘技术基础[M].北京:解放军出版社,2014:1-165.(JIN Guowang,ZHANG Hongmin,XU Qing.Radar remote sensing surveying and mapping technology foundation[M].Beijing:PLA Press,2014:1-165.)
• [2]刘辉,靳国旺,张红敏,等.DEM辅助的InSAR零中频处理基线估计方法[J].华中科技大学学报(自然科学版),2017,45(3):79-84.(LIU Hui,JIN Guowang,ZHANG Hongmin,et al.DEM assisted zero intermediate frequency baseline estimation method of InSAR[J].Journal of Huazhong University of Science and Technology(Natural Science Edition),2017,45(3):79-84.)
• [3]刘辉,靳国旺,张红敏,等.DEM辅助的山区InSAR相位解缠[J].测绘科学技术学报,2017,34(2):215-220.(LIU Hui,JIN Guowang,ZHANG Hongmin,et al.Phase unwrapping assisted by DEM of InSAR for mountainous terrain[J].Journal of Geomatics Science and Technology,2017,34(2):215-220.)
• [4]CURLANDER J C.Location of pixels in spaceborne SAR imagery[J].IEEE Trans on Geoscience and Remote Sensing,1982,20(3):359-364.
• [5]周金萍,唐伶俐,李传荣.星载SAR图像的两种实用化R-D定位模型及其精度比较[J].遥感学报,2001,5(3):191-197.(ZHOU Jinping,TANG Lingli,LI Chuanrong.Development of two practical R-D location model and precision comparison between them[J].Journal of Remote Sensing,2001,5(3):191-197.)
• [6]王雪莲.基于星载SAR图像直接定位的方法研究[D].郑州:信息工程大学,2002.(WANG Xuelian.Directly positioning method based on the spaceborne SAR image[D].Zhengzhou:Information Engineering University,2002.)
• [7]朱彩英,蓝朝桢,徐青,等.GPS支持下的机载SAR遥感图像无控制准实时地理定位[J].测绘学报,2003,32(3):234-238.(ZHU Caiying,LAN Chaozhen,XU Qing,et al.Geographic registration for air-bome SAR image with no ground control point supported by GPS position data[J].Acta Geodaetica et Cartographica Sinica,2003,32(3):234-238.)
• [8]SHENG Y W.Theoretical analysis of the iterative photogrammetric method to determining ground coordinates from photo coordinates and a DEM[J].Photogrammetric Engineering&Remote Sensing,2005,71(7):863-871.
• [9]杨杰,潘斌,李德仁,等.无地面控制点的星载SAR影像直接对地定位研究[J].武汉大学学报(信息科学版),2006,31(2):144-147.(YANG Jie,PAN Bin,LI Deren,et al.Location of spaceborne SAR imagery without reference points[J].Geomatics and Information Science of Wuhan University,2006,31(2):144-147.)
• [10]张波,张红,王超,等.一种新的星载SAR图像定位求解方法[J].电波科学学报,2006,21(1):1-5.(ZHANG Bo,ZHANG Hong,WANG Chao,et al.New solution to location of spaceborne synthetic aperture radar image[J].Chinese Journal of Radio Science,2006,21(1):1-5.)
• [11]李立钢,尤红建,彭海良,等.一种新的星载SAR图像定位方法的研究[J].电子与信息学报,2007,29(6):1441-1444.(LI Ligang,YOU Hongjian,PENG Hailiang,et al.A new method to locate satellite SAR imagery[J].Journal of Electronics&Information Technology,2007,29(6):1441-1444.)
• [12]尤红建,丁赤飚,付琨.SAR图像对地定位的严密共线方程模型[J].测绘学报,2007,36(2):158-162.(YOU Hongjian,DING Chibiao,FU Kun.SAR image localization using rigorous SAR collinearity equation model[J].Acta Geodaetica et Cartographica Sinica,2007,36(2):158-162.)
• [13]李立钢,吴一戎,刘波,等.基于卫星参数预测的星载SAR图像定位方法研究[J].电子与信息学报,2007,29(7):1691-1694.(LI Ligang,WU Yirong,LIU Bo,et al.The study of satellite SAR imagery geo-referencing based on satellite parameters prediction[J].Journal of Electronics&Information Technology,2007,29(7):1691-1694.)
• [14]傅文学,郭小方,田庆久.星载SAR距离-多普勒定位算法中地球模型的修正[J].测绘学报,2008,37(1):59-63.(FU Wenxue,GUO Xiaofang,TIAN Qingjiu.Correction of earth model in range-Doppler location algorithm[J].Acta Geodaetica et Cartographica Sinica,2008,37(1):59-63.)
• [15]邢帅,徐青,何钰,等.单幅SAR遥感影像定位的几何分析[J].红外与毫米波学报,2009,28(6):461-465.(XING Shuai,XU Qing,HE Yu,et al.Geometric analysis of single SAR remote sensing image positioning[J].Journal of Infrared and Millimeter Waves,2009,28(6):461-465.)
• [16]岳昔娟.稀少(无)控制条件下机载SAR高精度定位技术研究[D].武汉:武汉大学,2009.(YUE Xijuan.High-precision geolocation of airborne SAR data with few(none)ground control points[D].Wuhan:Wuhan University,2009.)
• [17]袁修孝,吴颖丹.缺少控制点的星载SAR遥感影像对地目标定位[J].武汉大学学报(信息科学版),2010,35(1):88-91,96.(YUAN Xiuxiao,WU Yingdan.Object location of spaceborne SAR imagery under lacking ground control points[J].Geomatics and Information Science of Wuhan University,2010,35(1):88-91,96.)
• [18]张红敏.SAR图像高精度定位技术研究[D].郑州:信息工程大学,2013.(ZHANG Hongmin.Research on technologies of accurate positioning with SAR images[D].Zhengzhou:Information Engineering University,2013.)
• [19]张红敏,靳国旺,徐青,等.基于DEM和图像仿真的单幅SAR图像无控制定位[J].测绘科学技术学报,2013,30(3):274-278.(ZHANG Hongmin,JIN Guowang,XU Qing,et al.Positioning with single SAR image based on DEM without ground control point[J].Journal of Geomatics Science and Technology,2013,30(3):274-278.)
• [20]张红敏,靳国旺,徐青,等.利用单个地面控制点的SAR图像高精度立体定位[J].雷达学报,2014,3(1):85-91.(ZHANG Hongmin,JIN Guowang,XU Qing,et al.Accurate positioning with stereo SAR images and one ground control point[J].Journal of Radars,2014,3(1):85-91.)