Generation and error analysis of DEM using spaceborne polarimetric SAR interferometry data

Author

Li, Xinwu ; Guo, Huadong ; Wang, Changlin ; Li, Zhen ; Liao, Jingjuan

Author_Institution

Inst. of Remote Sensing Applications, Chinese Acad. of Sci., Beijing, China

Volume

5

fYear

2002

fDate

2002

Firstpage

2705

Abstract

From the SIR-C polarimetric L-band data of Hotan, China, on 9 and 10 October 1994, the DEM of polarimetric SAR interferometry (Pol-InSAR) and the conventional L-band HH-HH interferometric pair are extracted. The difference of DEM generation using Pol-InSAR and conventional InSAR is discussed in detail. Based on the result of comparison and analysis of two DEM, it is conclude that the accuracy of DEM generated from the polarimetric SAR Interferometry data is significantly improved, especially for the area covered by rich vegetation with enough high coherence, the error less than 10 m. Finally, error sources of DEM generated by polarimetric SAR interferometry are further analyzed.

Keywords

geodesy; geophysical techniques; remote sensing by radar; spaceborne radar; synthetic aperture radar; terrain mapping; topography (Earth); AD 1994 10; China; DEM; DEM generation; Hotan; InSAR; L-band; Pol-InSAR; SIR-C; accuracy; digital elevation model; error; error sources; geodesy; geophysical measurement technique; land surface topography; polarimetric SAR Interferometry; polarimetric SAR interferometry; radar polarimetry; radar remote sensing; spaceborne radar; synthetic aperture radar; terrain mapping; Equations; Error analysis; Interferometry; L-band; Optimized production technology; Radar scattering; Remote sensing; Spaceborne radar; Synthetic aperture radar; Vegetation mapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International

Print_ISBN

0-7803-7536-X

Type

conf

DOI

10.1109/IGARSS.2002.1026748

Filename

1026748