Physics-informed neural networks for gravity field modeling of small bodies

J Martin, H Schaub - Celestial Mechanics and Dynamical Astronomy, 2022 - Springer
The physics-informed neural network (PINN) gravity model offers a novel and efficient way to
represent high-fidelity gravity fields. PINNs leverage modern deep learning strategies to …

利用CHAMP 卫星几何法轨道恢复地球重力场模型

徐天河, 杨元喜 - 地球物理学报, 2005 - dzkx.org
介绍了利用CHAMP 几何法轨道恢复地球重力场模型的基本原理和算法, 提出了基于牛顿数值
微分公式并辅助移去-恢复方法计算卫星速度的算法. 利用现有重力场模型标定CHAMP …

基于卫- 卫跟踪观测技术利用能量守恒法恢复地球重力场的数值模拟研究

郑伟, 邵成刚, 罗俊, 许厚泽 - 地球物理学报, 2006 - dzkx.org
根据卫-卫跟踪观测技术的测量原理, 基于能量守恒法建立了一种新的双星相互跟踪和三星相互
跟踪的卫星观测方程. 通过数值模拟, 采用预处理共轭梯度法恢复120 阶地球重力场 …

A technique for modeling the Earth's gravity field on the basis of satellite accelerations

P Ditmar, AAE Sluijs - Journal of Geodesy, 2004 - Springer
A technique is proposed for Earth's gravity field modeling on the basis of satellite
accelerations that are derived from precise orbit data. The functional model rests on …

A CHAMP‐only gravity field model from kinematic orbits using the energy integral

C Gerlach, L Földvary, D Švehla… - Geophysical …, 2003 - Wiley Online Library
In this paper we present results of a global gravity field recovery using half a year of CHAMP
data. We use the energy integral of the motion of a satellite to transform satellite velocities …

GOCE data processing: the spherical cap regularization approach

B Metzler, R Pail - Studia Geophysica et Geodaetica, 2005 - Springer
Due to the sun-synchronous orbit of the satellite gravity gradiometry mission GOCE, the
measurements will not be globally available. As a consequence, using a set of base …

[图书][B] Regional gravity field modelling with radial basis functions

T Wittwer - 2009 - repository.tudelft.nl
Terrestrial gravimetry, airborne gravimetry, and the recent dedicated satellite gravity
missions Challenging Minisatellite Payload (CHAMP), Gravity Recovery and Climate …

'DEOS_CHAMP-01C_70': a model of the Earth's gravity field computed from accelerations of the CHAMP satellite

P Ditmar, V Kuznetsov, AAE van der Sluijs… - Journal of …, 2006 - Springer
Performance of a recently proposed technique for gravity field modeling has been assessed
with data from the CHAMP satellite. The modeling technique is a variant of the acceleration …

A method for measuring gravitational potential of satellite's orbit using frequency signal transfer technique between satellites

Z Shen, W Shen, X Xu, S Zhang, T Zhang, L He, Z Cai… - Remote Sensing, 2023 - mdpi.com
We introduce an approach for the direct measurement of the gravitational potential (GP)
along the trajectory of a satellite, with a specific focus on Low-Earth Orbit (LEO) satellites. A …

基于GRACE 卫星重力数据确定地球重力场模型WHU-GM-05

王正涛, 李建成, 姜卫平, 晁定波 - 地球物理学报, 2008 - dzkx.org
基于卫星轨道运动的能量积分方程, 可导出利用卫星跟踪卫星数据求解地球重力场的实用公式.
本文在Jekeli 给出的公式基础上导出了基于能量守恒方程利用两颗低-低卫星跟踪的扰动位差 …