Results 11 to 20 of about 14,499 (248)

Efficient Methods of Utilizing Multi-SBAS Corrections in Multi-GNSS Positioning

open access: yesSensors, 2020
Various combining methods have been proposed to utilize multi-satellite-based augmentation system (SBAS) correction to provide accurate position in the global navigation satellite system (GNSS) receiver.
Kwi Woo Park   +2 more
doaj   +1 more source

METHODOLOGY TO IMPROVE THE ACCURACY OF DETERMINING THE POSITION OF UAVS EQUIPPED WITH SINGLE-FREQUENCY RECEIVERS FOR THE PURPOSES OF GATHERING DATA ON AVIATION OBSTACLES [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2023
Low-altitude photogrammetric studies are often applied in detection of aviation obstacles. The low altitude of the Unmanned Aerial Vehicle (UAV) flight guarantees high spatial resolution (X, Y) of the obtained data. At the same time, due to high temporal
Marta LALAK   +2 more
doaj   +1 more source

Analysing Time Series of Land Subsidence in the West of Tehran Province (Shahriar Plain) and its Relation to Groundwater Discharge by InSAR Technique

open access: yesجغرافیا و پایداری محیط, 2020
Land subsidence, as one of the natural and geological hazards, can be caused by human activities such as long-term discharge of groundwater and traditional irrigation farming. In the last two decades, climate change and successive droughts, unsustainable
Ramin Papi   +2 more
doaj   +1 more source

A Requirement-centric Approach to Web Service Modeling, Discovery, and Selection [PDF]

open access: yes, 2010
Service-Oriented Computing (SOC) has gained considerable popularity for implementing Service-Based Applications (SBAs) in a flexible\ud and effective manner.
A.V. Lamsweerde   +12 more
core   +6 more sources

Sustainable Energy Solutions for Environmental Pollution Control [PDF]

open access: yesE3S Web of Conferences
With increased technological advancements, in today’s world, sustainable energy solutions are innovative and provide attractive encouragement to researchers, green chemists, scientists, leaders, and the student community.
Mohan Chandra   +4 more
doaj   +1 more source

DInSAR deformation time series for monitoring urban areas: The impact of the second generation SAR systems [PDF]

open access: yes, 2012
We investigate the capability improvement of the DInSAR techniques to map deformation phenomena affecting urban areas, by performing a comparative analysis of the deformation time series retrieved by applying the full resolution Small BAseline Subset ...
A. Pepe   +4 more
core   +1 more source

Klobuchar, NeQuick G, and EGNOS Ionospheric Models for GPS/EGNOS Single-Frequency Positioning under 6–12 September 2017 Space Weather Events

open access: yesApplied Sciences, 2020
The ionosphere is one of the main factors affecting the accuracy of global navigation satellite systems (GNSS). It is a dispersive medium for radio signals, and for multi-frequency receivers, most of its effect can be removed.
Adam Ciećko, Grzegorz Grunwald
doaj   +1 more source

High quality InSAR data linked to seasonal change in hydraulic head for an agricultural area in the San Luis Valley, Colorado [PDF]

open access: yes, 2011
In the San Luis Valley (SLV), Colorado legislation passed in 2004 requires that hydraulic head levels in the confined aquifer system stay within the range experienced in the years 1978–2000.
Agram, Piyush Shanker   +5 more
core   +1 more source

AATR an ionospheric activity indicator specifically based on GNSS measurements [PDF]

open access: yes, 2018
This work reviews an ionospheric activity indicator useful for identifying disturbed periods affecting the performance of Global Navigation Satellite System (GNSS). This index is based in the Along Arc TEC Rate (AATR) and can be easily computed from dual-
González Casado, Guillermo   +5 more
core   +2 more sources

Application of the SBAS-DInSAR technique for deformation monitoring in Tunis City and Mornag plain

open access: yesGeomatics, Natural Hazards & Risk, 2020
The ground deformation phenomena are the result of the application of natural stress (tectonic) or anthropogenic stress (overexploitation of groundwater, embankment) on the soil. The land deformation may cause several impacts on the environment and human
Anis Chaabani, Benoit Deffontaines
doaj   +1 more source

Home - About - Disclaimer - Privacy