Results 21 to 30 of about 16,090 (139)

2D Cadastral Coordinate Transformation using extreme learning machine technique [PDF]

open access: yesGeodesy and Cartography, 2018
Land surveyors, photogrammetrists, remote sensing engineers and professionals in the Earth sciences are often faced with the task of transferring coordinates from one geodetic datum into another to serve their desired purpose.
Yao Yevenyo Ziggah   +3 more
doaj   +1 more source

A priori sensitivity analysis for densification GPS networks and their capacities of crustal deformation monitoring: a real GPS network application [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2014
The main purpose of this study is to investigate the possibilities of monitoring crustal movement, during collective evaluation of first- and second-order GPS densification networks.
P. Küreç, H. Konak
doaj   +1 more source

Türkiye’nin batısında 3B datum dönüşümü için en küçük kareler yaklaşımlarının karşılaştırma analizi [PDF]

open access: yes, 2017
In Turkey, the national reference frame was changed for geodetic applications in parallel with the increasing use of Global Navigation Satellite System technology.
Baybura, Tamer   +2 more
core   +1 more source

Progresses and Prospects of Marine Geodetic Datum and Marine Navigation in China [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2018
Territorial water is a significant part of national sovereignty of China,thus the infrastructures of national space datum and location services should cover the sea areas except for the land areas.China has established relatively complete geodetic ...
Yuanxi YANG,Tianhe XU,Shuqiang XUE
doaj  

User defined function for transformation of ellipsoidal coordinates [PDF]

open access: yesPodzemni Radovi, 2014
The topographic plane of the Earth has irregular shape, and for the purpose of mathematical defining, it is to be approximated by rotational ellipsoid. As local geodetic datum, rotational ellipsoids of various sizes are used in the world.
Ganić Aleksandar   +2 more
doaj   +1 more source

Deformation analysis: the modified GREDOD method [PDF]

open access: yesGeodetski Vestnik, 2022
In this paper, a modified Generalised Robust Estimation of Deformation from Observation Differences (GREDOD) method is presented, based on the application of genetic algorithm (GA) and generalised particle swarm optimisation (GPSO) algorithm in solving ...
Mehmed Batilović   +4 more
doaj   +1 more source

A detailed quasigeoid model of the Hong Kong territories computed by applying a finite-element method of solving the oblique derivative boundary-value problem

open access: yesJournal of Geodetic Science, 2023
New gravity and precise levelling measurements have been performed throughout the Hong Kong territories to modernize a vertical geodetic datum that is currently realized by heights of levelling benchmarks defined in the Hong Kong Principal Datum (HKPD ...
Čunderlík Robert   +5 more
doaj   +1 more source

Implementation of CORS GNSS and local geoid for precise orthometric height determination in land subsidence region (a case study in Semarang City)

open access: yesJournal of Geospatial Information Science and Engineering, 2019
Geoid has an important role in converting geodetic heights to physical heights, both in orthometric height system and normal height systems. At present, Semarang City already has gravimetric geoid with centimeter-level precision.
Laode M Sabri
doaj   +1 more source

Establishment of Local Geodetic Nets [PDF]

open access: yesActa Montanistica Slovaca, 2009
Establishment of Local Geodetic Nets (LGN) is closely related to the compatibility of geodetic points and to their importance. It alsoinvolved with the processes of setting up 2D LGNs and methods of verifying the datum points´ compatibility in the net ...
Heidy Schwarczová   +4 more
doaj  

COORDINATE TRANSFORMATION USING FEATHERSTONE AND VANÍČEK PROPOSED APPROACH - A CASE STUDY OF GHANA GEODETIC REFERENCE NETWORK

open access: yesGeoplanning: Journal of Geomatics and Planning, 2017
Most developing countries like Ghana are yet to adopt the geocentric datum for its surveying and mapping purposes. It is well known and documented that non-geocentric datums based on its establishment have more distortions in height compared with ...
Yao Yevenyo Ziggah   +3 more
doaj   +1 more source

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