Journal of University of Chinese Academy of Sciences >
DEM extraction via circular synthetic aperture radar
Received date: 2011-12-08
Revised date: 2012-03-13
Online published: 2013-01-15
Circular synthetic aperture radar (CSAR) has the capabilities of 360°all-aspect observation and high-resolution 3D reconstruction. Therefore it can obtain the DEM of the scenes. We propose a method to directly extract the DEM via CSAR. We cut the radar track circle into different arcs and then divide each arc into many sub-apertures. By utilizing the similarity of the sub-aperture images we extract the DEM by the way of the cross correlation. The data obtained in the microwave anechoic chamber indicate that this method is effective.
LIU Ting , LIN Yun , TAN Wei-Xian , HONG Wen , WANG Yan-Ping . DEM extraction via circular synthetic aperture radar[J]. Journal of University of Chinese Academy of Sciences, 2013 , 30(1) : 47 -52 . DOI: 10.7523/j.issn.1002-1175.2013.01.008
[1] Soumekh M. Reconnaissaissance with slant plane circular SAR imaging[J]. IEEE Transactions on Image Processing,1996,5(8):1252-1265.
[2] Ishimaru A,Chan T, Kuga Y. An imaging technique using confocal synthetic aperture radar[J]. IEEE Transactions on Geoscience and Remote Sensing,1998,36(5):1524-1530.
[3] Zhang X K. Study on imaging mechanism and algorithm of high-resolution circular synthefic aperture radar . Beijing: National Space Science Center, Chinese Academy of Sciences, 2007(in Chinese). 张祥坤. 高分辨率圆迹合成孔径雷达成像机理及方法研究 . 北京:中国科学院空间科学与应用研究中心,2007.
[4] Tang Z, Li J W, Wang B F. Curvilinear synthetic aperture radar iterative algorithm[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(8):882-885(in Chinese). 唐智,李景文,王宝发,等. 曲线合成孔径雷达最佳孔径研究[J]. 北京航空航天大学学报,2007,33(8):882-885.
[5] 林赟. 圆迹合成孔径雷达成像算法研究 . 北京:中国科学院电子学研究所,2011.
[6] Hubert M J, Cantalloube E C, Koeniguer H O. High resolution SAR imaging along circular trajectories[C]//IGRASS. Barcelona,Span, July 23-27,2007:2259-2262.
[7] Pinheiro M, Prats P, Scheiber R, et al. Tomographic 3D reconstruction from airborne circular SAR[C]//2009 IEEE International Geoscience and Remote Sensing Symposium (IGRSS). 2009,3:Ⅲ21-Ⅲ24.
[8] Oriot H, Cantalloube H. Circular SAR imagery for urban remote sensing[C]//2008 Proc EUSAR. 2008,2:205-208.
[9] Soumekh M. Synthetic aparture radar signal processing with MATLAB algorithms[M]. New York: Jone Wiley & Sons, Inc, 1999.
[10] Meric S, Fayard F, Pottier E. A multiwindow approach for radargrammetric improvements[J]. IEEE Transactions on Geoscience and Remote Sensing, 2011,49(10):3803-3810.
[11] Tupin F, Nicolas J M. Matching criteria for radargrammetric[C]//2002 IEEE International Geoscience and Remote Sensing Symposium(IGARSS). 2002,5: 2608-2610.
[12] Tan W X, Wang Y P, Hong W, et al. Circular SAR and circular SAR experiments in anechoic chamber[C]//2007 1st Asian and Pacific Conference on Synthetic Aperture Radar(APSAR). 2007: 90-93.
/
| 〈 |
|
〉 |