Results 141 to 150 of about 146,803 (321)

Universality and Realistic Extensions to the Semi-Analytic Simulation Principle in GNSS Signal Processing [PDF]

, 2012
Semi-analytic simulation principle in GNSS signal processing bypasses the bit-true operations at high sampling frequency. Instead, signals at the output branches of the integrate&dump blocks are successfully modeled, thus making extensive Monte Carlo ...
Jakubov, O., Kacmarik, P., Kovar, P., Vejrazka, F.   +3 more
core   +1 more source

First Results of a New Inversion Tool for Thermospheric Neutral Mass Density Computations During Severe Geomagnetic Storms

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract In Low Earth Orbit (LEO), atmospheric drag is the dominant source of trajectory prediction error below approximately 700 km altitude, primarily due to inaccuracies in thermospheric density models. This work presents a method for temporally deconvolving Energy Dissipation Rates (EDRs) to produce single‐satellite density estimates, which can be ...
S. Mutschler, M. Pilinski, E. Zesta, D. M. Oliveira, K. Delano, K. Garcia‐Sage, W. K. Tobiska   +6 more
wiley   +1 more source

What effect does network size have on NRTK positioning?

, 2011
The Network Real Time Kinematic (NRTK) positioning is nowadays a very common practice not only in academia but also in the professional world. To support the users several networks of Continuous Operating Reference Stations (CORSs) were born.
P. Dabove, M. De Agostino
core  

Attributing Upper‐Tropospheric Warm Biases in CMIP6 Models to Ice Cloud‐Radiation Interaction Deficiencies Over Tropical Oceans

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract We assess the impact of hydrometeor radiative effects on tropical and subtropical Pacific air temperature anomalies (TAA) using Coupled Model Intercomparison Project Phase 6 (CMIP6) model simulations and satellite data. CMIP6 models are grouped by their treatment of frozen hydrometeors: SON2 (explicit cloud and falling ice), SON1 (simplified),
J.‐L. F. Li, Wei‐Liang Lee, Kuan‐Man Xu, J. H. Jiang, Yi‐Hui Wang, Yu‐Cian Tsai, S‐P. Ho, Qing Yue, Graeme Stephens, Jia‐Yuh Yu, Huiwen Chuang   +10 more
wiley   +1 more source

DEM Embedding in GNSS-Based Navigation Using a Statistical Modeling [PDF]

, 2021
C. Boucher, Hiba Al-Assaad, Ali Daher, Ahmad Shahin, Jean-Charles Noyer   +4 more
openalex   +1 more source

Interseismic, Coseismic, and Early Postseismic Slip Associated With the 2025 Mw 8.8 Kamchatka Earthquake

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Unraveling the surface deformation and fault kinematics during the seismic cycle is crucial for understanding earthquake physics. Herein, we use geodetic and seismic observations to quantify the interseismic coupling, coseismic rupture, and postseismic afterslip associated with the 2025 Mw 8.8 Kamchatka earthquake.
Yang Xiao, Jingqi Wang, Yijun Zhang, Wenting Zhang, Jiangcun Zhou, Heping Sun, Yabo Zhao, Anas Osman, Rumeng Guo   +8 more
wiley   +1 more source

GNSS Error Sources

, 2018
Malek Karaim, Mohamed Elsheikh, Aboelmagd Noureldin   +2 more
openalex   +2 more sources

Multi‐Stage Shallow Rupture and Pre‐Event Shallow Deformation During the 2025 Mw 5.9 Asadabad Earthquake (Afghanistan)

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract The 31 August 2025 Mw 5.9 Asadabad earthquake in eastern Afghanistan caused severe damage despite its moderate magnitude, raising questions about rupture processes and seismic hazard in the southern Hindu Kush. Using Sentinel‐1 InSAR and teleseismic waveform modeling, we reveal a complex, multi‐stage shallow (4–5 km) rupture involving the ...
Ping He, Timothy J. Craig, Yangmao Wen, Huihui Weng, Kefeng He, Caijun Xu   +5 more
wiley   +1 more source

Stress Field and Megathrust Strength in the Western Hellenic Subduction System: Insights From the 2024 Mw 5.9 Strofades Earthquake Sequence, Greece

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract A M5.9 earthquake occurred on 29 March 2024, offshore near the Strofades Islands, in the western Hellenic Subduction System. Here we present high‐precision earthquake locations and focal mechanisms that suggest the rupture of a NNE‐SSW striking, left‐lateral strike‐slip fault.
G. M. Bocchini, D. Essing, I. Nikolopoulou, A. Dielforder, M. P. Roth, A. Serpetsidaki, E. Sokos, C. P. Evangelidis, R. M. Harrington   +8 more
wiley   +1 more source

Contribution of SLR observations to precise orbit determination and geocenter motion estimation using Galileo and Sentinel-6A satellites as space ties

Geo-spatial Information Science
The GNSS and SLR observation capabilities of both the Galileo and Sentinel-6A satellites provide potential space ties, improving the accuracy of orbit and geocenter motion measurements. This study seeks to evaluate the influence of SLR data on the orbits
Weiping Jiang, Zilu Cui, Hua Chen, Xingyu Zhou, Tianjun Liu, Zhao Li   +5 more
doaj   +1 more source