Results 11 to 20 of about 4,829 (259)

Analysis of Methods for Ellipsoidal Height Estimation – The Case of a Local Geodetic Reference Network

open access: bronzeGhana Mining Journal, 2016
Ghana’s local geodetic reference network is based on the War Office 1926 ellipsoid with data in latitude, longitude and orthometric height  without the existence of ellipsoidal height. This situation makes it difficult to apply the standard forward transformation equation for direct conversion of curvilinear geodetic coordinates to its associated ...
Yao Yevenyo Ziggah   +2 more
openalex   +4 more sources

Usability Of Interpolation Techniques For The Transformation From Ellipsoidal Height To Orthometric Height

open access: closedSelçuk Üniversitesi Mühendislik, Bilim ve Teknoloji Dergisi, 2004
Elipsoidal heights determined by GPS is different from orthometric heights used insurveying applications. Therefore, elipsoidal height determined by GPS is transformed to orthometricheight. It can be used several transformation methods to do this transformation.
Cevat İnal, Cemal Özer Yiğit
openalex   +2 more sources

ACCURACY ASSESSMENT OF DIFFERENT POLYNOMIAL GEOID MODELS IN ORTHOMETRIC HEIGHT DETERMINATION FOR AKURE, NIGERIA [PDF]

open access: yesGeodetski Glasnik, 2021
Height is an important component in three dimensional coordinates and determination of the position of points for any meaningful development. Ellipsoidal heights from GNSS require geoid model which could be global, regional and local for transformation ...
Ibrahim Olatunji Raufu, Herbert Tata
doaj   +1 more source

Kakovost določitve nadmorskih višin z GNSS-višinomerstvom na območju Ljubljane (= Quality determination of mean sea level heights with GNSS levelling on the Ljubljana city area) [PDF]

open access: yesGeodetski Vestnik, 2021
This paper describes the quality determination of heights above mean sea level using RTK GNSS-levelling and new height reference surface SLO_VRP2016/Koper on the city area of Ljubljana.
Miran Kuhar, Robert Brglez, Božo Koler
doaj   +1 more source

Advanced Kidney Volume Measurement Method Using Ultrasonography with Artificial Intelligence-Based Hybrid Learning in Children

open access: yesSensors, 2021
In this study, we aimed to develop a new automated method for kidney volume measurement in children using ultrasonography (US) with image pre-processing and hybrid learning and to formulate an equation to calculate the expected kidney volume. The volumes
Dong-Wook Kim   +5 more
doaj   +1 more source

Orthorectification of Data from the AHI Aboard the Himawari-8 Geostationary Satellite

open access: yesRemote Sensing, 2023
The use of geostationary meteorological satellites for land remote sensing has attracted much attention after the launch of the Himawari-8 satellite equipped with a sensor with enhanced land observation capabilities. In the context of land remote sensing,
Masayuki Matsuoka, Hiroki Yoshioka
doaj   +1 more source

Analysis of the accuracy of EGNOS+SDCM positioning in aerial navigation [PDF]

open access: yesArchives of Transport, 2022
The article presents a modified scheme of determining the accuracy parameter of SBAS (Satellite Based Augmentation System) positioning with use of two supporting systems: EGNOS (European Geostationary Navigation Overlay Service) and SDCM (System of ...
Magda Mrozik   +7 more
doaj   +1 more source

Recovery of orthometric heights from ellipsoidal heights using offsets method over Japan [PDF]

open access: yesEarth, Planets and Space, 2015
One of the most important applications of a geoid model is a recovery of orthometric heights from ellipsoidal heights (normally obtained from GNSS). The application of the geoid model for recovering orthometric heights from ellipsoidal heights is normally achieved by fitting the geoid model to a local vertical datum.
Odera, Patroba Achola, Fukuda, Yoichi
openaire   +1 more source

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