Vertical Accuracy of Digital Elevation Models Based on Differential Global Positioning System
نویسندگان
چکیده
منابع مشابه
Accuracy Assessment of Digital Elevation Models based on Approximation Theory
Empirical research in DEM accuracy assessment has observed that DEM errors are correlated with terrain morphology, sampling density, and interpolation method. However, theoretical reasons for these correlations have not been accounted for. This paper introduces approximation theory adapted from computational science as a new framework to assess the accuracy of DEMs interpolated from topographic...
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The Global Positioning System (GPS) is highly reliable and accurate when used outdoors. However, in indoor environments, due to the additional signal loss incurred by the walls of the buildings, the detection and decoding of GPS signals becomes a difficult task. As a solution to the indoor area coverage problem, an indoor positioning system based on GPS repeaters and a modified positioning algo...
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Global Digital Elevation Models (GDEM) are considered very attractive for current research and application areas due to their free and wide range accessibility. The ASTER Global Digital Elevation Model exhibits the highest spatial resolution data of all global DEMs and it is generated for almost the whole globe. Unfortunately, ASTER GDEM data include many artifacts and height errors that decrea...
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A public computing project named Terrain@home, is built on BOINC for extracting terrain features from global scope DEM data. Shuttle Radar Topography Mission (SRTM), which is a near global scope database of high accuracy elevation data, is selected as test data for Terrain@home. Conventional algorithms for terrain features auto extracting for example slope gradient, delineating drainage network...
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ژورنال
عنوان ژورنال: Iraqi Journal of Science
سال: 2021
ISSN: 2312-1637,0067-2904
DOI: 10.24996/ijs.2021.si.2.10