Joint use of multi-orbit high-resolution SAR interferometry for DEM generation in mountainous area

Lu Zhang, Houjun Jiang, Mingsheng Liao, Timo Balz, Teng Wang

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

1 Scopus citations

Abstract

SAR interferometry has long been regarded as an effective tool for wide-area topographic mapping in hilly and mountainous areas. However, quality of InSAR DEM product is usually affected by atmospheric disturbances and decorrelation-induced voids, especially for data acquired in repeat-pass mode. In this paper, we proposed an approach for improved topographic mapping by optimal fusion of multi-orbit InSAR DEMs with correction of atmospheric phase screen (APS). An experimental study with highresolution TerraSAR-X and COSMO-SkyMed datasets covering a mountainous area was carried out to demonstrate the effectiveness of the proposed approach. Validation with a reference DEM of scale 1:50,000 indicated that vertical accuracy of the fused DEM can be better than 5 m.
Original languageEnglish (US)
Title of host publication2014 IEEE Geoscience and Remote Sensing Symposium
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages406-409
Number of pages4
ISBN (Print)9781479957750
DOIs
StatePublished - Jul 2014

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