期刊论文

Zhou, Cui;Zhang, Gui;Yang, Zefa

英文

IEEE ACCESS

2169-3536

2020

8

130878-130887

10.1109/ACCESS.2020.3009851

This work was supported in part by the Young Elite Scientists Sponsorship Program by Hunan province of China under Grant 2018RS3093, in part by the National Natural Science Foundation of China under Grant 41604012, in part by the China Postdoctoral Science Foundation under Grant 2017M612604, in part by the Hunan Science and Technology Innovation Platform and Talent Plan Project under Grant 2017TP1022, and in part by the Opening Foundation of Hunan Engineering and Research Center of Natural Resource Investigation and Monitoring under Grant 2020-13.

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This paper presents a terrain-related method to simultaneously correct the global error trends and local linear/nonlinear terrain-related errors of the Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM), which have not been focused in most of the previous methods. To meet this goal, an adaptive strategy for modelling the SRTM DEM errors is first proposed, especially over mountainous areas, based on the Bayesian information criterion. Then, the M-estimator, instead of the ordinary least squares solver, is utilized to estimate ...