Results 1 to 10 of about 12,356 (109)

RapidScat Cross-Calibration Using the Double Difference Technique [PDF]

open access: yesRemote Sensing, 2017
RapidScat is a National Aeronautics and Space Administration (NASA) Ku-Band scatterometer that was operated onboard the International Space Station between September 2014 and August 2016 when the mission effectively ended after an irrecoverable ...
Josko Zec   +3 more
doaj   +5 more sources

Assessment of Swarm Kinematic Orbit Determination Using Two Different Double-Difference Methods

open access: yesRemote Sensing, 2023
The Swarm mission aims to study the principle and change regularities of the Earth’s magnetic field. Precise orbit determination is essential to the successful implementation of the mission and relevant scientific research.
Rui Zhang   +5 more
doaj   +3 more sources

On Some Classes of Double Difference Sequences of Interval Numbers [PDF]

open access: yesAbstract and Applied Analysis, 2014
The aim of this paper is to introduce some interval valued double difference sequence spaces by means of Musielak-Orlicz function M=(Mij). We also determine some topological properties and inclusion relations between these double difference sequence ...
S. A. Mohiuddine   +2 more
doaj   +3 more sources

Double difference earthquake location with graph neural networks

open access: yesEarth, Planets and Space
Double difference earthquake relocation is an essential component of many earthquake catalog development workflows. This technique produces high-resolution relative relocations between events by minimizing differential measurements of the arrival times ...
Ian W. McBrearty, Gregory C. Beroza
doaj   +3 more sources

A Novel Ultra-Wideband Double Difference Indoor Positioning Method with Additional Baseline Constraint

open access: yesISPRS International Journal of Geo-Information, 2021
Ultra-wideband (UWB) technology is suitable for indoor positioning owing to its high resolution and penetration. However, the current UWB positioning methods not only fail to fully analyze errors, but do not have the ability to eliminate gross and large ...
Yinzhi Zhao   +4 more
doaj   +3 more sources

Formal Uncertainty and Dispersion of Single and Double Difference Models for GNSS-Based Attitude Determination

open access: yesSensors, 2017
With multi-antenna synchronized global navigation satellite system (GNSS) receivers, the single difference (SD) between two antennas is able to eliminate both satellite and receiver clock error, thus it becomes necessary to reconsider the equivalency ...
Wen Chen   +7 more
doaj   +3 more sources

ON NEW CESARO-ORLICZ DOUBLE DIFFERENCE SEQUENCE SPACE [PDF]

open access: yesRomanian Journal of Mathematics and Computer Science, 2014
The aim of this paper is to introduce the Cesaro-Orlicz double difference sequence space Ces_M^{(2)}(△, p).
OGUZ OGUR, CENAP DUYAR
doaj   +1 more source

Improvement of Multi-GNSS Precision and Success Rate Using Realistic Stochastic Model of Observations

open access: yesRemote Sensing, 2021
With the advancement of multi-constellation and multi-frequency global navigation satellite systems (GNSSs), more observations are available for high precision positioning applications.
Farinaz Mirmohammadian   +3 more
doaj   +1 more source

Enhanced 3D velocity structure, seismicity relocation and basement characterization of Changning shale gas and salt mining regions in southern Sichuan basin

open access: yesFrontiers in Earth Science, 2023
Current extensive seismicity in southern Sichuan Basin is ascribed to the reactivation of pre-existing faults, as a result of prolonged fluid injection for salt mining and shale gas development, respectively.
Uzonna Okenna Anyiam   +8 more
doaj   +1 more source

Multi-GNSS-Weighted Interpolated Tropospheric Delay to Improve Long-Baseline RTK Positioning

open access: yesSensors, 2022
Until now, RTK (real-time kinematic) and NRTK (Network-based RTK) have been the most popular cm-level accurate positioning approaches based on Global Navigation Satellite System (GNSS) signals in real-time. The tropospheric delay is a major source of RTK
Farinaz Mirmohammadian   +3 more
doaj   +1 more source

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