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Research on the UWB/IMU fusion positioning of mobile vehicle based on motion constraints
Springer Science and Business Media LLC - Tập 55 - Trang 237-255 - 2020
In a non-line-of-sight (NLOS) environment, high accuracy ultra-wideband (UWB)
positioning has been one of the hot topics in studying indoor positioning.
Aiming at the UWB and inertial measurement unit (IMU) fusion vehicle
positioning, a constraint robust iterate extended Kalman filter (CRIEKF)
algorithm has been proposed in this paper. It has overcome the innate defect of
the extended Kalman filte...
Model parameter estimation and its uncertainty for 2-D inclined sheet structure in self-potential data using crow search algorithm
Springer Science and Business Media LLC - Tập 55 - Trang 691-715 - 2020
Fracture or fault can control several geological or geophysical events and
exploration, where the fault associated with mineralization or fluid flow can be
used as a source for Self-Potential (SP) anomaly. The 2-D inclined sheet can be
used for modeling for fault interpretation using SP data. In this paper, the
improved crow search algorithm (ICSA) using Levy flight is proposed for SP data
inversi...
A combined estimator using TEC and b-value for large earthquake prediction
Springer Science and Business Media LLC - Tập 55 - Trang 63-82 - 2020
Ionospheric anomalies have been shown to occur a few days before several large
earthquakes. The published works normally address examples limited in time (a
single event or few of them) or space (a particular geographic area), so that a
clear method based on these anomalies which consistently yields the place and
magnitude of the forthcoming earthquake, anytime and anywhere on earth, has not
been ...
Application of the constrained moving horizon estimation method for the ultra-short baseline attitude determination
Springer Science and Business Media LLC - Tập 48 - Trang 27-38 - 2013
GPS compass equipped with ultra-short baselines (2–5 carrier wavelengths) is a
low-cost heading and elevation indicator for many size-limited applications such
as small vehicles, robots, miniaturized satellites or aircrafts. Since the
single epoch GPS compass can guarantee a total independence from carrier phase
slips, recent researches focus on the high success rate ambiguity resolution for
this ...
Macroseismic intensity data of the 22 April 2013 Tenk (Hungary) earthquake
Springer Science and Business Media LLC - - 2014
Future stress accumulation zones around the main active faults by 3D numerical simulation in East Azerbaijan Province, Iran
Springer Science and Business Media LLC - Tập 54 - Trang 461-481 - 2019
As a preliminary three-dimensional numerical analysis, this research aims to
detect future zones of high-stress accumulation caused by the interaction of
active faults within a 3D topographic geological block based on finite-element
analysis. Stress analysis of the three-dimensional topographic model covers both
static and dynamic loading caused by topographic loads and crustal movements,
and can ...
A total least squares solution for geodetic datum transformations
Springer Science and Business Media LLC - Tập 49 - Trang 189-207 - 2014
In this contribution, the symmetrical total least squares adjustment for 3D
datum transformations is classified as quasi indirect errors adjustment (QIEA).
QIEA is a traditional geodetic adjustment category invented by Wolf
(Ausgleichungsrechnung nach der Methode der kleinsten Quadrate, 1968), which is
specifically used for quasi nonlinear models. The form of the QIEA objective
function contains t...
Insights from the 06 February 2023 Mw 7.8 Kahramanmaras earthquake: evidence into an active strike-slip faulting along the East Anatolian Fault Zone
Springer Science and Business Media LLC - Tập 58 - Trang 465-497 - 2023
On February 6, 2023, a magnitude 7.8 earthquake and subsequent strong seismic
activity struck in Kahramanmaras region, causing over 50,000 deaths in Turkey
and Syria. The earthquake resulted in a surface rupture of the East Anatolian
Fault Zone (EAFZ) spanning approximately 300 km. To gain new insights into the
neotectonic and current stress field in the region, we compiled 141 focal
mechanism sol...
AVO study on a known geothermal reservoir located in the fractured carbonate formations of the pre-Cenozoic basement, Northwest Hungary
Springer Science and Business Media LLC - Tập 57 - Trang 477-494 - 2022
Amplitude Versus Offset (AVO) analysis has been successfully applied in the
hydrocarbon industry for more than three decades. This effective tool of the
joint seismic and well-log data processing enables to predict and analyze fluid
saturated porous geological formations. AVO methodology is based on the
anomalous behavior of the pre-stack reflected amplitudes observed from fluid
bearing rocks. How...
Indication of meta-anthracite by magnetotellurics in the Kőszeg-Rechnitz Penninic window: a test area
Springer Science and Business Media LLC - Tập 48 - Trang 281-292 - 2013
One of the Penninic Nappes is the Kőszeg-Rechnitz (K-R) tectonic window at the
Eastern end of the Eastern Alps. It has a complicated metamorphic history from
the Jurassic time. The organic material of the Penninic Ocean was transformed to
electrically conductive meta-anthracite. Its amount in the chalcophyllite is
estimated by geochemists to 0.2 per cent. Taking this conducting structure as a
test...
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