Gravity Gradient Tensor of Arbitrary 3D Polyhedral Bodies with up to Third-Order Polynomial Horizontal and Vertical Mass Contrasts
Sign Up to like & getrecommendations! Published in 2018 at "Surveys in Geophysics"
DOI: 10.1007/s10712-018-9467-1
Abstract: During the last 20 years, geophysicists have developed great interest in using gravity gradient tensor signals to study bodies of anomalous density in the Earth. Deriving exact solutions of the gravity gradient tensor signals has… read more here.
Keywords: gradient; gravity gradient; exact solutions; gradient tensor ... See more keywords
Attitude Tracking Control of Gravity Gradient Microsatellite in Maneuvering for Space Exploration
Sign Up to like & getrecommendations! Published in 2018 at "Microgravity Science and Technology"
DOI: 10.1007/s12217-018-9663-0
Abstract: The problem of the finite-time tracking control strategy is studied for a gravity gradient microsatellite BUAA-SAT in maneuvering. The contributions of the work are mainly shown in two aspects: 1) the analysis of the combined… read more here.
Keywords: gravity gradient; gradient microsatellite; control; gravity ... See more keywords
Design and testing of inflatable gravity-gradient booms in space
Sign Up to like & getrecommendations! Published in 2019 at "CEAS Space Journal"
DOI: 10.1007/s12567-019-00256-w
Abstract: Inflatable space structures have many advantages such as small size, high reliability, and low cost. Aiming at a gravity-gradient boom for an XY-1 satellite, New Technology Verifying Satellite-1, a slender inflatable boom with low magnetic… read more here.
Keywords: boom; inflatable boom; gravity gradient; space ... See more keywords
3D density imaging using gravity and gravity gradient in the wavenumber domain and its application in the Decorah
Sign Up to like & getrecommendations! Published in 2024 at "Scientific Reports"
DOI: 10.1038/s41598-023-49711-z
Abstract: Density imaging is a method that uses the inversion of the gravity and gravity gradient spectra in the wavenumber domain to create accurate 3D reconstructions of subsurface density distributions. This approach offers computational efficiency and… read more here.
Keywords: density imaging; gravity gradient; gravity; density ... See more keywords
Using gravity gradient component and their combination to interpret the geologic structures in the eastern Tianshan Mountains
Sign Up to like & getrecommendations! Published in 2021 at "Geophysical Journal International"
DOI: 10.1093/gji/ggab373
Abstract: As early as the Palaeozoic era, the Tianshan Mountains constituted a vast tectonic convergent zone within the Eurasian Continent; by this time, they had already experienced multiple intense crustal movements. The Indian Plate is currently… read more here.
Keywords: gravity gradient; tianshan mountains; area; gravity ... See more keywords
On performance of vertical gravity gradient determined from CryoSat-2 altimeter data over Arabian Sea
Sign Up to like & getrecommendations! Published in 2023 at "Geophysical Journal International"
DOI: 10.1093/gji/ggad153
Abstract: High-precision and high-resolution satellite altimetry data from CryoSat-2 are widely utilized for marine gravity inversion. The vertical gravity gradient is a crucial parameter of the Earth's gravity field. To evaluate the performance of vertical gravity… read more here.
Keywords: gravity; altimeter data; gradient; gravity gradient ... See more keywords
An integrated method for gravity gradient inversion and gravity gradient depth imaging
Sign Up to like & getrecommendations! Published in 2024 at "Geophysical Journal International"
DOI: 10.1093/gji/ggae173
Abstract: Gravity gradient data can show the structural features of geological bodies in the shallow lithosphere with higher sensitivity and resolution than conventional gravity data. Gravity gradient inversion can be applied to obtain the lithospheric density… read more here.
Keywords: gravity gradient; depth imaging; gravity; gradient inversion ... See more keywords
Genetic Algorithm-Based Weighted Comprehensive Image Matching Algorithm for Underwater Gravity Gradient-Aided Navigation
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Journal of Oceanic Engineering"
DOI: 10.1109/joe.2024.3379484
Abstract: Gravity gradient-aided inertial navigation is of great significance to the development of autonomous underwater vehicles (AUV). The matching algorithm is the core technology of gravity gradient-aided navigation. In this work, a weighted gravity gradient comprehensive… read more here.
Keywords: image; gravity gradient; matching algorithm; navigation ... See more keywords
An Augmented State Robust Unscented Kalman Filtering for Gravity Gradient Matching Navigation
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2024.3488733
Abstract: As a completely autonomous and passive positioning method, gravity gradient matching can provide high-precision positioning services for submarines during long underwater voyages, holding great military application prospects. Aiming at the problem of measurement disturbances in… read more here.
Keywords: gravity gradient; navigation; gradient matching; unscented kalman ... See more keywords
GGIMN: Gravity Gradient Image Matching Network With Adaptive Adjoint Smoothing for AUV Navigation
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2025.3554543
Abstract: Gravity gradient-aided navigation is a promising navigation method for autonomous underwater vehicle (AUV), in which matching algorithm is its key technology. Image matching algorithms have higher matching accuracy and information utilization than single point matching… read more here.
Keywords: gravity gradient; image matching; navigation;
Mathematical properties and physical meaning of the gravity gradient tensor eigenvalues
Sign Up to like & getrecommendations! Published in 2017 at "Geophysics"
DOI: 10.1190/geo2016-0418.1
Abstract: ABSTRACTThe eigenvalues of the gravity gradient tensor can be expressed as functions of two parameters: a magnitude and a phase. The decomposition gives physical meaning to the eigenvalues: The magnitude measures the amount of curvature,… read more here.
Keywords: gravity; gravity gradient; physical meaning; gradient tensor ... See more keywords