A5016073765- Geophysics and Gravity Measurements
- GNSS positioning and interference
- Geomagnetism and Paleomagnetism Studies
- Geophysical and Geoelectrical Methods
- Inertial Sensor and Navigation
- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Image and Video Quality Assessment
- Video Analysis and Summarization
- Technology and Security Systems
- Bluetooth and Wireless Communication Technologies
- Geological and Geochemical Analysis
- Computational Physics and Python Applications
- Optical Systems and Laser Technology
- Smart Grid and Power Systems
- Indoor and Outdoor Localization Technologies
- Sensor Technology and Measurement Systems
- Underwater Vehicles and Communication Systems
- Flow Measurement and Analysis
- Autonomous Vehicle Technology and Safety
- Soil Moisture and Remote Sensing
- Satellite Communication Systems
- Paleontology and Stratigraphy of Fossils
- Multimedia Communication and Technology
- Power Systems and Technologies
University of Twente
2022-2023
Institute of Environmental Geology and Geoengineering
2023
Politecnico di Milano
2022
Guangdong University of Technology
2022
GFZ Helmholtz Centre for Geosciences
2017-2020
Wuhan University
2017-2019
Technische Universität Berlin
2017-2019
Zhaotong University
2005
Beihang University
1990-2003
Abstract Airborne gravimetry is a crucial method to improve our knowledge about the Earth gravity field, especially in hard‐to‐access regions. Generally, accuracy of airborne several milligals, which suitable for filling so‐called polar gaps satellite‐derived global field models. Here some investigations based on measurements from GEOHALO mission over Italy are presented. To subtract vertical accelerations values measured by gravimeter, four different versions kinematic were derived Global...
Abstract During temporal gravity field model determination, the kinematic empirical parameters are mainly designed to remove strong bias, drift, and 1‐cycle per revolution variations in range‐rates. In practice, two different strategies commonly used process these parameters. One is determine before solving spherical harmonic coefficients, called Pure Predetermined Strategy (PPS). The other simultaneously Simultaneous (PSS). this study, apart from strategies, a novel processing strategy...
A conventional Differential GPS (DGPS) techniques-based velocity and acceleration method (named here as ‘DVA’) may be difficult to implement in the Antarctic there is a sparse distribution of reference stations over Antarctica. Thus, order overcome baseline limitations obtain highly accurate reliable estimates for airborne gravimetry, network-based determination approach ‘NVA’), which introduces wide network independent precise clock information, applied. Here its performance fully exploited...
The fact that most mobile phones are equipped with short-range communication devices, such as Bluetooth, etc., and a portion of have GPS embedded enables us to envision roughly localize GPS-free recursively progressively by exploiting the available information. With position beacons, Bluetooth connection between neighbor proximity constraints, we formulate problem an inequality defined on network. A recurrent neural network is developed solve distributively in real time. convergence solution...
Conventional relative kinematic positioning is difficult to be applied in the polar region of Earth since there a very sparse distribution reference stations, while precise point (PPP), using data stand-alone receiver, recognized as promising tool for obtaining reliable and accurate trajectories moving platforms. However, PPP its integer ambiguity fixing performance could much degraded by satellite orbits clocks poor quality, such those geostationary orbit (GEO) satellites BeiDou navigation...
Marine gravimetry provides high-quality gravity measurements, particularly in coastal areas. After the update of new sensors GFZ’s air-marine gravimeter Chekan-AM, measurements showed a significant improvement from first campaign DENEB2017 with an accuracy 0.3/2=0.21 mGal @ 1 km along tracks, which is at highest level marine gravimetry. Then, these were used to assess data derived satellite altimetry (about 3 mGal) and finding that bias −1.5 exists study area. Additionally, ship soundings...
Despite 160 years of probing the world crust, due to lack seismic and ground gravity observations, there are still white spots in worlds' crustal thickness map. The structure those regions is among least understood Earth's continental areas, variations basic but fundamental parameters - such as poorly constrained over large areas. Recent research has shown that satellite gravity-based modeling with limited seismological coverage can provide unique insights underlying geodynamical processes....
Understanding and modeling the popularity of User Generated Content (UGC) short videos on social media platforms presents a critical challenge with broad implications for content creators recommendation systems. This study delves deep into intricacies predicting engagement newly published limited user interactions. Surprisingly, our findings reveal that Mean Opinion Scores from previous video quality assessment datasets do not strongly correlate levels. To address this, we introduce...
Satellite gravimetry missions have enabled the calculation of high-accuracy and high-resolution Earth gravity field models from satellite-to-satellite tracking data gravitational gradients. However, calculating high maximum degree/order (e.g., 240 or even higher) using least squares method is time-consuming due to vast amount observations. To improve efficiency, a parallel algorithm has been developed by combining Message Passing Interface (MPI) Open Multi-Processing (OpenMP) programming...
The authors present a novel scenario of satellite-based air traffic control which can be implemented using an integrated positioning and communication system relying on very small aperture terminal technology. Particular emphasis is placed the position estimation algorithms, make use adaptive Kalman filtering methods to improve accuracy numerical stability. results computer simulation study are presented.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Since its discovery in 1909, the Moho was routinely studied by seismological methods. However, from 1950s, a possible alternative introduced gravimetric inversion. Thanks to satellite gravity missions launched beginning of 21st century, global inversion became feasible, e.g., leading computation GEMMA model 2012. This computed inverting GOCE second radial derivatives anomalous potential Wiener filter, which applied spherical harmonic domain, considering two-layer with lateral and vertical...