Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-1/W1, 7-12, 2013
http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-1-W1/7/2013/
doi:10.5194/isprsarchives-XL-1-W1-7-2013
© Author(s) 2013. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
30 Apr 2013
EVALUATION OF PERSISTENT SCATTERER PATTERNS AT BUILDING FACADES BY SIMULATION TECHNIQUES
S. Auer1, S. Gernhardt1, and K. Eder2 1Chair of Remote Sensing Technology, TU München, Arcisstr 21, 80333 München, Germany
2Dept. of Photogrammetry and Remote Sensing, TU München, Arcisstr 21, 80333 München, Germany
Keywords: Urban, high resolution, SAR, persistent scatterer, TerraSAR-X, simulation Abstract. Thanks to the high resolution of modern SAR satellites many persistent scatterers (PS) appear at single buildings, approximately half of them representing building facades. These groups of points often show regular patterns in the SAR images that can be related to repeating structure elements on the facades. Hence, individual buildings can now be monitored over time, either based on amplitude (for change detection) and phase information (using interferometric methods). However, patterns of point signatures are often disrupted or disappear when the imaging geometry is slightly changed. The investigation at hand provides a detailed analysis of PS patterns based on reference data obtained from a photogrammetric survey. The processing of the optical images allows to create a detailed 3D model of the respective facade, which represents the geometrical object information for SAR simulation. From the simulation results the appearance of the point patterns of natural PS in high resolution SAR data can be better understood. The approach and findings for a case study in Munich is described in detail in this paper.
Conference paper (PDF, 1788 KB)


Citation: Auer, S., Gernhardt, S., and Eder, K.: EVALUATION OF PERSISTENT SCATTERER PATTERNS AT BUILDING FACADES BY SIMULATION TECHNIQUES, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-1/W1, 7-12, doi:10.5194/isprsarchives-XL-1-W1-7-2013, 2013.

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