Results 181 to 190 of about 14,281,997 (294)
Mapping Global GNSS Vertical Velocities to Solid Earth Figure Change
Abstract The Earth's figure evolves in response to glacial isostatic adjustment (GIA), surface‐mass redistribution, and rotational and mantle‐driven processes. While temporal changes in the geoid's flattening are monitored through low‐degree gravity field harmonics, the geometric response of the solid Earth can be assessed independently from GNSS ...
C. Kotsakis
wiley +1 more source
On the Height Component for GNSS Positioning
The accuracy of height component in GNSS positioning is most sensitive issue comparing with the positioning in plane coordinates only. On the basis of Riga city levelling network control the height component determination using GNSS technique has been ...
Normanda, Madara +8 more
core
The Spatiotemporal Evolution of Creep on the Southern San Andreas Fault Between 2015–2021
Abstract The Southern San Andreas fault (SSAF) in the Coachella Valley experiences shallow creep and slow slip events (SSE), which re‐distribute stresses in the seismogenic zone and affect the potential of future earthquakes. Although average creep rates are relatively well‐constrained, untangling the details of spatiotemporal variation in creep along ...
Ellis J. Vavra, Yuri Fialko
wiley +1 more source
A Dual-Adaptive Sage-Husa Kalman Filter with Model Matching Check for GNSS/INS-Integrated Navigation. [PDF]
Zhou M +11 more
europepmc +1 more source
Ship‐Based GNSS Tsunami Detection: Pilot Network Demonstration
Abstract We demonstrate the potential for ship‐based GNSS systems to contribute to tsunami warning. We built a pilot network of 10 ships—8 commercial and 2 research vessels—equipped with a tsunami detection package consisting of a geodetic‐grade GNSS antenna and receiver, and satellite internet communications.
James H. Foster +3 more
wiley +1 more source
Velocity-Aided Navigation in GNSS-Denied Environments. [PDF]
Avrutov V +5 more
europepmc +1 more source
Abstract Sparse reference station networks and severe geomagnetic disturbances can significantly degrade the accuracy of regional ionospheric delay modeling at the network side, thereby reducing the positioning performance of PPP‐RTK. To address this issue, this study proposes a machine learning‐based ionospheric delay grid modeling method that finely ...
Linyu He +6 more
wiley +1 more source
TVC-Aided Robust Attitude Estimation for Launch Vehicles Using an Invariant Extended Kalman Filter. [PDF]
Tong X, Fu W, Yan J.
europepmc +1 more source
Abstract The high‐latitude ionosphere exhibits rapid spatial and temporal variability during geomagnetically active periods, creating persistent challenges for accurate nowcasts. The High‐latitude Workbox for the Ionosphere (HAWK‐I) is a real‐time ionosphere nowcast and specification system designed for operational deployment to address these ...
Patrick Dandenault +7 more
wiley +1 more source
A Multi-Source Remote-Sensing-Assisted Method for GNSS Station Site Selection in Underground Coal-Mining Subsidence Areas. [PDF]
He Y +8 more
europepmc +1 more source

