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DEM generation in the densely vegetated area of Hotan, north-west China using SIR-C repeat pass polarimetric SAR interferometry

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The potential use of the coherence optimization method of polarimetric SAR interferometry (Pol-InSAR) to increase the accuracy of digital elevation models (DEMs) was investigated in a densely vegetated area of the Hotan region, Xinjiang Province, north-west China, using SIR-C data. Under the same experimental conditions, the results indicate that the accuracy of a DEM generated from L-band fully polarimetric single baseline interferometric data is significantly greater than that derived from L-band HH-HH single baseline interferometric data, and the rms. error is less than 8 m.

Document Type: Research Article


Affiliations: Laboratory of Remote Sensing Information Sciences, Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China

Publication date: July 1, 2003

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