Results 41 to 50 of about 4,073 (231)

Studying the Fixing Rate of GPS PPP Ambiguity Resolution Under Different Geomagnetic Storm Intensities

open access: yesSpace Weather, 2023
Global Positioning System (GPS) Precise Point Positioning (PPP) with correct fixing ambiguity resolution (AR) can reach cm‐mm level positioning accuracy. However, this accuracy can be degraded by the geomagnetic storm effects.
Xiaomin Luo   +4 more
doaj   +1 more source

Between-satellite ambiguity resolution based on preliminary GNSS orbit and clock information using a globally applied ambiguity clustering strategy. [PDF]

open access: yes, 2023
The use of undifferenced (UD) processing schemes of GNSS measurements is becoming more and more popular for the generation of global network solutions (GNSS orbits and clock products) within the GNSS community.
Calero-Rodríguez, Emilio J.   +4 more
core   +1 more source

Testosterone enables growth and hypertrophy in fusion impaired myoblasts that display myotube atrophy: deciphering the role of androgen and IGF-I receptors [PDF]

open access: yes, 2015
We have previously highlighted the ability of testosterone to improve differentiation and myotube hypertrophy in fusion impaired myoblasts that display reduced myotube hypertrophy at 72hrs (after transfer to low serum media) via multiple population ...
Dugdale, HF   +6 more
core   +2 more sources

Advances in UAV Operations for Valley-Type Mapping with Different Duration Period PPP-AR Methods in GCP

open access: yesApplied Sciences
This study evaluates the performance of the Precise Point Positioning with Ambiguity Resolution (PPP-AR) method under varying durations and software platforms in determining the optimal placement of Ground Control Points (GCPs) for use in photogrammetric
Burhaneddin Bilgen   +2 more
doaj   +1 more source

Integrity monitoring scheme for single-epoch GNSS PPP-RTK positioning

open access: yesSatellite Navigation, 2023
Integrity monitoring for precise point positioning is critical for safety-related applications. With the increasing demands of high-accuracy autonomous navigation for unmanned ground and aerial vehicles, the integrity monitoring method of high-precision ...
Wenhao Zhang, Jinling Wang
doaj   +1 more source

Security Trust Zone in 5G Networks

open access: yes, 2017
Fifth Generation (5G) telecommunication system is going to deliver a flexible radio access network (RAN). Security functions such as authorization, authentication and accounting (AAA) are expected to be distributed from central clouds to edge clouds.
Dohler, Mischa   +4 more
core   +1 more source

EVALUATION OF A GNSS/IMU/LIDAR-INTEGRATION FOR AIRBORNE LASER SCANNING USING RTKLIB PPK AND PPP GNSS SOLUTIONS [PDF]

open access: yes, 2023
Airborne laser scanning allows for efficient acquisition of accurate 3D data for large areas. Because georeferencing of the LiDAR data requires knowledge of the platform trajectory, the laser scanner system commonly comprises a global navigation ...
Mandlburger, G., Pfeifer, N., Pöppl, F.
core   +2 more sources

Efficacy of dual sublingual immunotherapy with Japanese cedar pollen and house dust mite allergens in patients with allergic rhinitis sensitized to multiple allergens

open access: yesLaryngoscope Investigative Otolaryngology, 2022
Objective In the present study, we examined the effects of dual sublingual immunotherapy (SLIT) with Japanese cedar pollen (JCP) and house dust mite (HDM) allergens on nasal symptoms during the peak pollen period (PPP) and in late fall (LF) in patients ...
Tatsuya Fujii   +4 more
doaj   +1 more source

Multi-GNSS Precise Point Positioning with Ambiguity Resolution using IGS Products: A Cross-Evaluation of Three Software Packages and Combinations of Constellation Data for Geophysical Investigations [PDF]

open access: yes, 2023
Precise point positioning (PPP) is a GNSS processing strategy for the estimation of station coordinates, receiver clocks, and zenith total delays with high efficiency, precision, and accuracy.
DUMAN, Hüseyin   +3 more
core  

Assessment of the PPP-AR Strategy for ZTD and IWV in Africa: A One-Year GNSS Study

open access: yesAtmosphere
With the increasing demand for near real-time atmospheric water vapor monitoring, this study evaluates the performance of the open-source PRIDE PPP-AR software (version 3.0.5) for retrieving Zenith Total Delay (ZTD) and Integrated Water Vapor (IWV) over ...
Moustapha Gning Tine   +4 more
doaj   +1 more source

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