Results 241 to 250 of about 1,040,988 (296)
Some of the next articles are maybe not open access.
Integrated gravity and gravity gradient 3D inversion using the non-linear conjugate gradient
Journal of Applied Geophysics, 2016Abstract Gravity data, which are critical in mineral, oil, and gas exploration, are obtained from the vertical component of the gravity field, while gravity gradient data are measured from changes in the gravity field in three directions. However, few studies have sought to improve exploration techniques by integrating gravity and gravity gradient ...
Jie Liu, Pengbo Qin, Meixia Geng
exaly +2 more sources
Joint Gravity and Gravity Gradient Inversion for Subsurface Object Detection
IEEE Geoscience and Remote Sensing Letters, 2013A novel approach of joint gravity and gravity gradient inversion is presented for passive subsurface object detection in this letter. Gravity and gravity gradient anomalies induced by an object can be measured and inversed to estimate the mass, orientation, and distance of the object.
Lin Wu, Chengyi Xiong, Xiaoping Ke
exaly +3 more sources
Marine Geophysical Researches, 2018 Bathymetry is the measurement of the water depth similar to underwater topography. Gravity anomaly and vertical gravity gradient are important data used to inverse bathymetry.
Jiangjun Ran, Shuanggen Jin, Xiaoyun Wan
exaly +2 more sources
Joint Inversion of Gravity and Gravity Gradient Data Based on Cross-Gradient Function
IEEE Sensors JournalHuiyan SHI, Qiang Lin, Xiaolong Wang
exaly +2 more sources
Modeling gravity gradient data for gravity gradient aided navigation system
2012 Third International Conference on Intelligent Control and Information Processing, 2012Nowadays, a completely self contained, passive navigation system that relies on gravity gradient instrument for INS aiding within non-GNSS(Global Navigation Satellite System) environments has been widespread concern. In order to research this system, a high accuracy and resolution gravity gradient data is what you should first gain. This paper presents
Yandong Wang +4 more
openaire +1 more source
Proceedings of the 27th IEEE Conference on Decision and Control, 2003
It is shown that, for floated satellite gravity gradiometers subject to very low levels of unmodeled forces and torques, dynamic estimation can dramatically reduce rotation correction errors. The filter structure is developed, and the value of factorization techniques is examined.
D. Sonnabend, W.M. McEneaney
openaire +1 more source
It is shown that, for floated satellite gravity gradiometers subject to very low levels of unmodeled forces and torques, dynamic estimation can dramatically reduce rotation correction errors. The filter structure is developed, and the value of factorization techniques is examined.
D. Sonnabend, W.M. McEneaney
openaire +1 more source
Improved nullification of gravity gradients
Physical Review D, 1987A scheme due to Forward for canceling out gravity tides in a space laboratory is improved upon. It is shown how fourth-order terms in the potential can be eliminated by using eight masses instead of six. Even more economical compensation is obtained by using an ellipsoidal shell. The region of nullification then extends throughout the interior.
openaire +2 more sources
Gravity Gradient Exploration Satellite
AIAA SCITECH 2026 ForumThe Gravity Gradient Exploration Satellite (GGEOS) is a single-unit CubeSat technology demonstration being developed by a group of four undergraduate aerospace engineering students at Embry-Riddle Aeronautical University.
Luke S. Ritchie +3 more
core +3 more sources
Gravity gradient modeling using gravity and DEM
Journal of Geodesy, 2008A model of the gravity gradient tensor at aircraft altitude is developed from the combination of ground gravity anomaly data and a digital elevation model. The gravity data are processed according to various operational solutions to the boundary-value problem (numerical integration of Stokes’ integral, radial-basis splines, and least-squares ...
Lizhi Zhu, Christopher Jekeli
openaire +1 more source
Geophysics, 1958
Abstract As the co-author of the paper “Observation of the Vertical Gradient of Gravity in the Field” which appeared in Vol. 21 (1956) of Geophysics, I should like to add some comments.
openaire +1 more source
Abstract As the co-author of the paper “Observation of the Vertical Gradient of Gravity in the Field” which appeared in Vol. 21 (1956) of Geophysics, I should like to add some comments.
openaire +1 more source