A priori accuracy assessment of the DEM derived by InSAR

Details A priori accuracy assessment of the DEM derived by InSAR A priori accuracy assessment of the DEM derived by InSAR

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.475..273l&link_type=abstract

In: Proceedings of the Third International Symposium on Retrieval of Bio- and Geophysical Parameters from SAR Data for Land Appl

Statistics

Applications

1

Dem Accuracy, Sar Interferometry, Ers, Gps

Scientific paper

The main objective is to assess statistically the InSAR DEM accuracy with regards to dGPS elevation. The spatial analysis of the sytematic error demonstrated the need for correction of local trends by plan equation locally computed. The analysis of the random error leads to propose a model to predict a priori the Z error as a function of the relief roughness and the phase coherence. This serves as an a priori estimation of the error which can be expected from a given pair of SAR images in a given region.

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