Recovering radar shadow to improve interferometric phase unwrapping and DEM reconstruction

被引:11
作者
Eineder, M [1 ]
Suchandt, S [1 ]
机构
[1] German Aerosp Ctr, DLR, Remote Sensing Technol Inst, D-82230 Oberpfaffenhofen, Germany
来源
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2003年 / 41卷 / 12期
关键词
phase unwrapping; radar shadow; Shuttle Radar Topography Mission (SRTM);
D O I
10.1109/TGRS.2003.821266
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
This letter presents a new Approach to actively use radar shadow in order to unwrap and geocode objects that cannot be reconstructed by synthetic aperture radar interferometry alone. This new algorithm may significantly improve phase unwrapping and digital elevation model reconstruction in mountainous topography or in urban areas. The algorithm is explained and examples are given with data from the Shuttle Radar Topography Mission, where shadow is a serious problem in alpine terrain.
引用
收藏
页码:2959 / 2962
页数:4
相关论文
共 14 条
[1]  
[Anonymous], P IEEE IGARSS JUL
[2]   A novel phase unwrapping method based on network programming [J].
Costantini, M .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1998, 36 (03) :813-821
[3]   Multiresolution phase unwrapping for SAR interferometry [J].
Davidson, GW ;
Bamler, R .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1999, 37 (01) :163-174
[4]   Efficient simulation of SAR interferograms of large areas and of rugged terrain [J].
Eineder, M .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2003, 41 (06) :1415-1427
[5]   Unwrapping large interferograms using the minimum cost flow algorithm [J].
Eineder, M ;
Hubig, M ;
Milcke, B .
IGARSS '98 - 1998 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, PROCEEDINGS VOLS 1-5: SENSING AND MANAGING THE ENVIRONMENT, 1998, :83-87
[6]  
EINEDER M, 2000, P IGARSS, V7, P3210
[7]   THE WAVE-NUMBER SHIFT IN SAR INTERFEROMETRY [J].
GATELLI, F ;
GUARNIERI, AM ;
PARIZZI, F ;
PASQUALI, P ;
PRATI, C ;
ROCCA, F .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1994, 32 (04) :855-865
[8]   ROBUST 2-DIMENSIONAL WEIGHTED AND UNWEIGHTED PHASE UNWRAPPING THAT USES FAST TRANSFORMS AND ITERATIVE METHODS [J].
GHIGLIA, DC ;
ROMERO, LA .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1994, 11 (01) :107-117
[9]  
GOBLIRSCH W, 1997, P IGARSS, V1, P439
[10]   SATELLITE RADAR INTERFEROMETRY - TWO-DIMENSIONAL PHASE UNWRAPPING [J].
GOLDSTEIN, RM ;
ZEBKER, HA ;
WERNER, CL .
RADIO SCIENCE, 1988, 23 (04) :713-720