Accuracy assessment of interferometric digital elevation models derived from the Shuttle Radar Topography Mission X- and C-band data in a test area with rolling topography and moderate forest cover

In February 2000, the Shuttle Radar Topography Mission (SRTM) mapped large areas of the global landmass using two radar systems operating simultaneously in X and C band. The radar mapping instrument consisted of modified versions of the SIR-C C-band and X-band radars flown on the shuttle in 1994. Modifications included a 60-m retractable boom, with C-band and X-band receive-only antennas attached to the boom's end. High-accuracy metrology systems were added to measure position and attitude of the shuttle and the positions of the boom antennas. The dual apertures at each band form radar interferometers suitable for making high-accuracy topographic maps of the Earth. The C-band data set is being processed by JPL for the archives of the National Imagery and Mapping Agency and the National Aeronautics and Space Administration. The X-band data set is processed and distributed at DLR, Germany. This paper deals with the accuracy assessments of the interferometric DEMs derived from the X- and C-band synthetic aperture radar systems over a testfield with rolling topography and moderate forest cover using the reference DEM digitized from the topographic maps of 1:25,000 scale. Obtained results for the two interferometric DEMs are similar and lie in the range of 10-11 m. The accuracy of SRTM X- and C-band DEMs was also checked against ground control points measured by differential GPS, and the rms height errors were found to be about 9 m, which confirms the results based on the reference DEM. © 2005 Society of Photo-Optical Instrumentation Engineers.

Dergi Adı Optical Engineering
Dergi Cilt Bilgisi 44
Dergi Sayısı 3
Sayfalar 1 - 7
Yayın Yılı 2005
Eser Adı
[dc.title]
Accuracy assessment of interferometric digital elevation models derived from the Shuttle Radar Topography Mission X- and C-band data in a test area with rolling topography and moderate forest cover
Yazar
[dc.contributor.author]
Kocak G.
Yazar
[dc.contributor.author]
Buyuksalih G.
Yazar
[dc.contributor.author]
Oruc M.
Yayın Yılı
[dc.date.issued]
2005
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
In February 2000, the Shuttle Radar Topography Mission (SRTM) mapped large areas of the global landmass using two radar systems operating simultaneously in X and C band. The radar mapping instrument consisted of modified versions of the SIR-C C-band and X-band radars flown on the shuttle in 1994. Modifications included a 60-m retractable boom, with C-band and X-band receive-only antennas attached to the boom's end. High-accuracy metrology systems were added to measure position and attitude of the shuttle and the positions of the boom antennas. The dual apertures at each band form radar interferometers suitable for making high-accuracy topographic maps of the Earth. The C-band data set is being processed by JPL for the archives of the National Imagery and Mapping Agency and the National Aeronautics and Space Administration. The X-band data set is processed and distributed at DLR, Germany. This paper deals with the accuracy assessments of the interferometric DEMs derived from the X- and C-band synthetic aperture radar systems over a testfield with rolling topography and moderate forest cover using the reference DEM digitized from the topographic maps of 1:25,000 scale. Obtained results for the two interferometric DEMs are similar and lie in the range of 10-11 m. The accuracy of SRTM X- and C-band DEMs was also checked against ground control points measured by differential GPS, and the rms height errors were found to be about 9 m, which confirms the results based on the reference DEM. © 2005 Society of Photo-Optical Instrumentation Engineers.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Geometric accuracy
Konu Başlıkları
[dc.subject]
Interferometric DEMs
Konu Başlıkları
[dc.subject]
Reference DEM
Konu Başlıkları
[dc.subject]
Root mean square error
Konu Başlıkları
[dc.subject]
Shuttle Radar Topography Mission (SRTM)
Konu Başlıkları
[dc.subject]
SRTM X- and C-band data
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
0091-3286
Sponsor YAYINCI
[dc.description.sponsorship]
101Y090
Sponsor YAYINCI
[dc.description.sponsorship]
This work was carried out under the international project supported by a collaboration between TUBITAK (Turkey) and JULICH (Germany) with code no. 101Y090.
İlk Sayfa Sayısı
[dc.identifier.startpage]
1
Son Sayfa Sayısı
[dc.identifier.endpage]
7
Dergi Adı
[dc.relation.journal]
Optical Engineering
Dergi Sayısı
[dc.identifier.issue]
3
Dergi Cilt Bilgisi
[dc.identifier.volume]
44
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1117/1.1870000
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/4111
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11
09.12.2022 tarihinden bu yana
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1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
29 Ocak 2024 13:39
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C-band systems X-band accuracy shuttle interferometric antennas results reference processed topographic National against aperture moderate topography rolling testfield confirms synthetic Society derived Photo-Optical Instrumentation assessments Engineers forest control checked points measured differential ground similar height
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