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Assessment of GPS positioning performance using different signals in the context of ionospheric scintillation: a month-long case study on São José dos Campos, Brazil

Abstract: The ionospheric scintillation associated to small-scale irregularities in the ionospheric layer can lead to performance degradation of Global Navigation Satellite Systems (GNSS) signals, and the reduction of positioning accuracy. The influence of the ionosphe

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Enhancing SRTM digital elevation models with deep-learning-based super-resolution image generation

Abstract: Digital elevation models are responsible for providing altimetric information on a surface to be mapped. While global models of low and medium spatial resolution are available open source by several space agencies, the high-resolution ones, which are utilized

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Characterisation of stakeholders' roles in a thematic SDI: a study on the environmental SDI of NGI - ICMBio Antonina -GUARAQUEÇABA - PR

Abstract: In 2008 the International Cartographic Association (ICA) proposed a reference model to describe Spatial Data Infrastructures (SDI) based on the Reference Model of Open Distributed Processing (RM-ODP), which has been adapted and validated by several research p

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Partially-conformal variations of the Standard Molodensky datum transformation
Andrew Carey Ruffhead

Abstract: Standard Molodensky is a recognised method of transforming coordinates between geodetic datums. Although less accurate than some other methods, it has the merit of being direct. That is to say it can be applied to geodetic coordinates, without involving Carte

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