Results 41 to 50 of about 5,886 (223)

Fuzzy H-infinity output feedback control of nonlinear systems under sampled measurements [PDF]

open access: yes, 2003
This paper studies the problem of designing an H∞ fuzzy feedback control for a class of nonlinear systems described by a continuous-time fuzzy system model under sampled output measurements.
Bamieh   +15 more
core   +1 more source

Farklı regresyon modelleriyle kestirilen zenit troposferik gecikmelerin değerlendirilmesi

open access: yesNiğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, 2022
Yapay zekâ ve makine öğrenimi alanındaki gelişmeler, GNSS uygulamalarındaki sorunlara alternatif çözümler sunmakta veya mevcut çözümlerin verimliliğini artırmaya imkân sağlamaktadır. GNSS’de karşılaşılan birçok hata vardır ve bu hatalar kullanıcılar için
Ali Utku Akar, Cevat İnal
doaj   +1 more source

Online Localization and Tracking of Multiple Moving Speakers in Reverberant Environments [PDF]

open access: yes, 2019
We address the problem of online localization and tracking of multiple moving speakers in reverberant environments. The paper has the following contributions.
Alameda-Pineda, Xavier   +4 more
core   +4 more sources

Assessment of SIRGAS-CON tropospheric products using ERA5 and IGS

open access: yesJournal of Geodetic Science, 2022
Zenith Tropospheric Delays (ZTDs) are used to correct tropospheric effects that cause a delay in the signal measured by Global Navigation Satellite Systems (GNSS) receivers and obtain accurate measurements.
Prado Anderson   +2 more
doaj   +1 more source

Preliminary signs of the initiation of deep convection by GNSS [PDF]

open access: yes, 2013
This study reports on the exploitation of GNSS (Global Navigation Satellite System) and a new potential application for weather forecasts and nowcasting.
Brenot, H   +8 more
core   +3 more sources

Evaluation of Zenith Tropospheric Delay Derived from Ray-Traced VMF3 Product over the West African Region Using GNSS Observations

open access: yesAdvances in Meteorology, 2021
The growing demand for Global Navigation Satellite System (GNSS) technology has necessitated the establishment of a vast and ever-growing network of International GNSS Service (IGS) tracking stations worldwide. The IGS provides highly accurate and highly
Samuel Osah   +3 more
doaj   +1 more source

Calculation GNSS STD, SWD, and ZTD

open access: yes, 2023
Python package for creating GNSS STD/SWD as well as modelled (GPT/VMF) ZTD Install all required packages indicated in the requirements.
openaire   +1 more source

MSE-impact of PPP-RTK ZTD estimation strategies

open access: yesAdvances in Space Research, 2018
In PPP-RTK network processing, the wet component of the zenith tropospheric delay (ZTD) cannot be precisely modelled and thus remains unknown in the observation equations. For small networks, the tropospheric mapping functions of different stations to a given satellite are almost equal to each other, thereby causing a near rank-deficiency between the ...
Wang, K. (author)   +2 more
openaire   +5 more sources

An Improved Model for Detecting Heavy Precipitation Using GNSS-Derived Zenith Total Delay Measurements

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In recent years, precipitable water vapor has been widely used in heavy precipitation prediction, which is obtained from a conversion of the zenith total delay (ZTD) of the GNSS signal.
Haobo Li   +8 more
doaj   +1 more source

Zenith total delay study of a mesoscale convective system : GPS observations and fine-scale modelling [PDF]

open access: yes
Zenith Total Delay (ZTD) observations and model calculations are used to analyze a mesoscale convective system which yielded a large amount of precipitation over a short period of time in the north-western Mediterranean. ZTD observations are derived from
Cucurull, I.   +2 more
core   +3 more sources

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