Urban monitoring using TerraSAR-X SAR data

Sang Wan Kim, Geun Won Yoon, Joong Sun Won

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

After launching of TerraSAR-X, space-borne SAR image with high spatial resolution of 1-2 meter is considered as one of important data source for modelling and monitoring of urban areas. The buildings in urban regions are important infrastructures to characterize SAR backscatter and interferometric phase in SAR interferometry. The shadow and layover are more prominent in urban areas due to building structure (Figure 1). The InSAR phase in layover regions at buildings shows the typical shape referred as "front-proch" shape (Burkhart, 1996). After detecting some of meaningful phase signal related with building height in layover regions, interferometric phase analysis at building location was investigated by Thiele et al. (2007a and 2007b). To increase our understanding on interferometric phase of building structure we used seven spotlight mode TerraSAR-X SAR data and LIDAR DSM over Daejeon city. Using LIDAR DSM and TerraSAR-X sensor parameters including satellite positions, range/azimuth resolution, sensor's wavelength, etc., interferometric phase and amplitude image were simulated from the new algorithm for high resolution DSM and SAR system proposed by Kim and Yoon (2010) as well as conventional software of GAMMA. For change detection, phase profile signal constructed from LIDAR DSM was subtracted from real interferometric phase in TerraSAR-X interferogram (Figure 2). The performance comparison in terms of the accuracy of change detection in urban area will be addressed through the analysis of the TerraSAR-Xs differential interferograms.

Original languageEnglish
Title of host publication2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011
Pages483-484
Number of pages2
Publication statusPublished - 2011 Dec 22
Event2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011 - Seoul, Korea, Republic of
Duration: 2011 Sep 262011 Sep 30

Other

Other2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011
CountryKorea, Republic of
CitySeoul
Period11/9/2611/9/30

Fingerprint

building
monitoring
Monitoring
Sensors
Launching
urban area
Interferometry
Satellites
Wavelength
performance comparison
infrastructure

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Communication

Cite this

Kim, S. W., Yoon, G. W., & Won, J. S. (2011). Urban monitoring using TerraSAR-X SAR data. In 2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011 (pp. 483-484). [6087116]
Kim, Sang Wan ; Yoon, Geun Won ; Won, Joong Sun. / Urban monitoring using TerraSAR-X SAR data. 2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011. 2011. pp. 483-484
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title = "Urban monitoring using TerraSAR-X SAR data",
abstract = "After launching of TerraSAR-X, space-borne SAR image with high spatial resolution of 1-2 meter is considered as one of important data source for modelling and monitoring of urban areas. The buildings in urban regions are important infrastructures to characterize SAR backscatter and interferometric phase in SAR interferometry. The shadow and layover are more prominent in urban areas due to building structure (Figure 1). The InSAR phase in layover regions at buildings shows the typical shape referred as {"}front-proch{"} shape (Burkhart, 1996). After detecting some of meaningful phase signal related with building height in layover regions, interferometric phase analysis at building location was investigated by Thiele et al. (2007a and 2007b). To increase our understanding on interferometric phase of building structure we used seven spotlight mode TerraSAR-X SAR data and LIDAR DSM over Daejeon city. Using LIDAR DSM and TerraSAR-X sensor parameters including satellite positions, range/azimuth resolution, sensor's wavelength, etc., interferometric phase and amplitude image were simulated from the new algorithm for high resolution DSM and SAR system proposed by Kim and Yoon (2010) as well as conventional software of GAMMA. For change detection, phase profile signal constructed from LIDAR DSM was subtracted from real interferometric phase in TerraSAR-X interferogram (Figure 2). The performance comparison in terms of the accuracy of change detection in urban area will be addressed through the analysis of the TerraSAR-Xs differential interferograms.",
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Kim, SW, Yoon, GW & Won, JS 2011, Urban monitoring using TerraSAR-X SAR data. in 2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011., 6087116, pp. 483-484, 2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011, Seoul, Korea, Republic of, 11/9/26.

Urban monitoring using TerraSAR-X SAR data. / Kim, Sang Wan; Yoon, Geun Won; Won, Joong Sun.

2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011. 2011. p. 483-484 6087116.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Kim SW, Yoon GW, Won JS. Urban monitoring using TerraSAR-X SAR data. In 2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011. 2011. p. 483-484. 6087116