Satellite gravity gradient grids for geophysics
نویسندگان
چکیده
منابع مشابه
Satellite gravity gradient grids for geophysics
The Gravity field and steady-state Ocean Circulation Explorer (GOCE) satellite aimed at determining the Earth's mean gravity field. GOCE delivered gravity gradients containing directional information, which are complicated to use because of their error characteristics and because they are given in a rotating instrument frame indirectly related to the Earth. We compute gravity gradients in grids...
متن کاملGraphite-epoxy Composite Gravity -gradient Boom for a Small Satellite
Passive stabilization methods for satellites have undergone extensive research and development. Recently the number of small satellites (satellites less than I 00 kg.) has increased dramatically. This has lead to increased use of passive stabilization methods, such as gravity-gradient The core of a gravity-gradient stabilization system is a deployable boom with a damping mechanism. Traditionall...
متن کاملGGP Ground Truth for Satellite Gravity Missions
The launch of the satellite GRACE heralds a new era of high precision, time-varying, satellite measurements of the Earth's gravity field. An important aspect of the mission is to consider how the predicted high-accuracy gravity data might be validated. Two kinds of validation have been proposed; the first is internal, whereby the data are modeled for self – consistency to verify the internal ac...
متن کاملPrecision Accelerometers for Gravity Gradient Measurements
An accelerometer, based on a microwave sapphire resonator, is under development for application in a compact gravity gradiometer. This gravity gradiometer potentially can be used in space gradiometry, precision navigation, and geodesy. The principle of operation of the accelerometer is based on measurements of classical springproof-mass displacements, which are converted to phase shifts in the ...
متن کاملGravity Gradient Tensor Eigendecomposition for Spacecraft Positioning
Pei Chen1, Xiucong Sun2, and Chao Han3 Beihang University, Beijing, 100191, People’s Republic of China Nomenclature U = gravitational potential, m2/s2 T = gravity gradient tensor (GGT), E TECEF = GGT in ECEF, E TENU = GGT in ENU, E TEIG = GGT in the Eigen frame, E T0 = GGT in GRF, E LA→B = rotation matrix from A to B r = observation position, m x, y, z = cartesian coordinates of r r, φ, λ = sph...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Scientific Reports
سال: 2016
ISSN: 2045-2322
DOI: 10.1038/srep21050