Results 1 to 10 of about 3,680 (206)

Gravity Compensation Using EGM2008 for High-Precision Long-Term Inertial Navigation Systems [PDF]

open access: yesSensors, 2016
The gravity disturbance vector is one of the major error sources in high-precision and long-term inertial navigation applications. Specific to the inertial navigation systems (INSs) with high-order horizontal damping networks, analyses of the error ...
Ruonan Wu, Qiuping Wu, Fengtian Han
exaly   +8 more sources

GNSS Positioning by CORS and EGM2008 in Jilin Province, China [PDF]

open access: yesSensors, 2015
The Continuously Operating Reference Station (CORS) technique has been widely applied in land resource management, surveying, mapping, deformation monitoring, precise navigation, etc. This article analyzed the positioning method using EGM2008 and CORS of
Jingyu Kang, Jianing Zhen
exaly   +6 more sources

Computing the Deflection of the Vertical for Improving Aerial Surveys: A Comparison between EGM2008 and ITALGEO05 Estimates [PDF]

open access: yesSensors, 2016
Recent studies on the influence of the anomalous gravity field in GNSS/INS applications have shown that neglecting the impact of the deflection of vertical in aerial surveys induces horizontal and vertical errors in the measurement of an object that is ...
Riccardo Barzaghi   +2 more
exaly   +8 more sources

Performance Comparison of Geoid Refinement between XGM2016 and EGM2008 Based on the KTH and RCR Methods: Jilin Province, China

open access: yesRemote Sensing, 2020
The selection of an appropriate global gravity field model and refinement method can effectively improve the accuracy of the refined regional geoid model in a certain research area.
Shengbo Chen
exaly   +4 more sources

An Algorithm for Strapdown Airborne Gravity Disturbance Vector Measurement Based on High-Precision Navigation and EGM2008. [PDF]

open access: yesSensors (Basel)
Attitude errors, accelerometer bias, the gravity disturbance vector, and their coupling are the primary factors obstructing strapdown airborne vector gravimetry.
Fang K, Cai T.
europepmc   +5 more sources

The development and evaluation of the Earth Gravitational Model 2008 (EGM2008) [PDF]

open access: yesJournal of Geophysical Research, 2012
EGM2008 is a spherical harmonic model of the Earth's gravitational potential, developed by a least squares combination of the ITG‐GRACE03S gravitational model and its associated error covariance matrix, with the gravitational information obtained from a global set of area‐mean free‐air gravity anomalies defined on a 5 arc‐minute equiangular grid.
N. Pavlis   +3 more
exaly   +5 more sources

Crustal structure beneath Cameroon from EGM2008

open access: yesGeodesy and Geodynamics, 2014
We used the Earth Gravitational Model (EGM2008) data sets to analyze the regional gravity anomalies and to study the underground structures in Cameroon. We first created a high-resolution Free-Air anomaly database, then corrected the gravity field of the
Ngatchou Heutchi Evariste   +6 more
exaly   +4 more sources

Assessment of recent GOCE-based global geopotential models and EGM2008 in Niger Republic

open access: yesGeodesy and Cartography, 2019
In this study, we assessed recent GOCE-based Global Geopotential Models (GGMs) and EGM2008 in Niger.  The combined GGMs EIGEN_6C4, GECO and EGM2008 were evaluated up to their maximum degree and order (d/o) 2,190 to select the one for gravity database ...
Salissou Ibrahim Yahaya, Driss El Azzab
doaj   +4 more sources

Determination of deflection of the vertical components by using global geopotential model EGM2008 [PDF]

open access: yesTehnika, 2018
This paper presents the determination of the vertical deflection components using the Global Geopotential Model EGM2008. The components are defined in two groups of points: 4083 points are relatively correctly distributed across the territory of Serbia ...
Odalović Oleg R.   +4 more
doaj   +4 more sources

Qinghai-Tibet Plateau crustal thickness derived from EGM2008 and CRSUT2.0

open access: yesGeodesy and Geodynamics, 2014
Qinghai-Tibet Plateau is the most complex region for crustal thickness inversion, while high-resolution earth gravity model (EGM) makes it possible to obtain high precision gravity anomaly, which is a key parameter to depict the Earth’s inner structure ...
Zhou Hao, Luo Zhicai, Zhong Bo
exaly   +4 more sources

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