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The recently suggested SEE (Satellite Energy Exchange) method of measuring the gravitational constant $G$, possible equivalence principle violation (measured by the E\"{o}tv\"{o}s parameter $\eta$) and the hypothetic 5th force parameters…

General Relativity and Quantum Cosmology · Physics 2008-02-03 A. D. Alexeev , K. A. Bronnikov , N. I. Kolosnitsyn , M. Yu. Konstantinov , V. N. Melnikov , A. G. Radynov

Space-based gravitational wave detection is based on the astrodynamical equations derived from gravitational theory to detect changes in distance between spacecraft/celestial bodies and/or their state changes caused by gravitational waves.…

General Relativity and Quantum Cosmology · Physics 2024-09-04 Wei-Tou Ni

The classical tests of general relativity - light deflection, time delay and perihelion shift - are applied, along with the geodetic precession test, to the five-dimensional extension of the theory known as Kaluza-Klein gravity, using an…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Hongya Liu , James Overduin

Visual and lidar Simultaneous Localization and Mapping (SLAM) algorithms benefit from the Inertial Measurement Unit (IMU) modality. The high-rate inertial data complement the other lower-rate modalities. Moreover, in the absence of constant…

Robotics · Computer Science 2022-03-28 Vladimír Kubelka , Maxime Vaidis , François Pomerleau

Automatic extraction of buildings in remote sensing images is an important but challenging task and finds many applications in different fields such as urban planning, navigation and so on. This paper addresses the problem of buildings…

Computer Vision and Pattern Recognition · Computer Science 2018-11-08 Gui-Song Xia , Jin Huang , Nan Xue , Qikai Lu , Xiaoxiang Zhu

We propose a new method for measurements of gravitational acceleration using a quantum optomechanical system. As a proof-of-concept, we investigate the fundamental sensitivity for a cavity optomechanical system for gravitational…

Quantum Physics · Physics 2018-10-24 Sofia Qvarfort , Alessio Serafini , Peter F. Barker , Sougato Bose

We identified and computed the horizontal wavelengths of atmospheric gravity waves in clouds using a visible camera installed on a window of the Columbus module of the International Space Station (ISS) and controlled by a Raspberry Pi…

Reliable spatial information can be difficult to obtain in planetary remote sensing applications because of errors present in the metadata of images taken with space probes. We have designed a pipeline to address this problem on…

Instrumentation and Methods for Astrophysics · Physics 2020-09-07 Ines Belgacem , Grégory Jonniaux , Frédéric Schmidt

This paper aims to develop an accurate 3D geometry representation of satellite images using satellite-ground image pairs. Our focus is on the challenging problem of 3D-aware ground-views synthesis from a satellite image. We draw inspiration…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Ming Qian , Jincheng Xiong , Gui-Song Xia , Nan Xue

This paper introduces a new analytical method for the determination of the coverage area modeling the Earth as an oblate ellipsoid of rotation. Starting from the knowledge of the satellite's position vector and the direction of the…

Space Physics · Physics 2019-07-01 Marco Nugnes , Camilla Colombo , Massimo Tipaldi

We propose a concept for future space gravity missions using cold atom interferometers for measuring the diagonal elements of the gravity gradient tensor and the spacecraft angular velocity. The aim is to achieve better performance than…

For metrology, geodesy and gravimetry in space, satellite based instruments and measurement techniques are used and the orbits of the satellites as well as possible deviations between nearby ones are of central interest. The measurement of…

General Relativity and Quantum Cosmology · Physics 2015-08-27 Dennis Philipp , Volker Perlick , Claus Laemmerzahl , Kaustubh Deshpande

Cross-view geo-localization aims to estimate the GPS location of a query ground-view image by matching it to images from a reference database of geo-tagged aerial images. To address this challenging problem, recent approaches use panoramic…

Computer Vision and Pattern Recognition · Computer Science 2022-11-03 Xiaohan Zhang , Waqas Sultani , Safwan Wshah

Automated road network extraction from remote sensing imagery remains a significant challenge despite its importance in a broad array of applications. To this end, we explore road network extraction at scale with inference of semantic…

Computer Vision and Pattern Recognition · Computer Science 2021-02-25 Adam Van Etten

We consider imaging of fast moving small objects in space, such as low earth orbit satellites. The imaging system consists of ground based, asynchronous sources of radiation and several passive receivers above the dense atmosphere. We use…

Signal Processing · Electrical Eng. & Systems 2020-03-03 Matan Leibovich , George Papanicolaou , Chrysoula Tsogka

Image retrieval-based cross-view localization methods often lead to very coarse camera pose estimation, due to the limited sampling density of the database satellite images. In this paper, we propose a method to increase the accuracy of a…

Computer Vision and Pattern Recognition · Computer Science 2023-07-21 Yujiao Shi , Fei Wu , Akhil Perincherry , Ankit Vora , Hongdong Li

Despite numerous successful missions to small celestial bodies, the gravity field of such targets has been poorly characterized so far. Gravity estimates can be used to infer the internal structure and composition of small bodies and, as…

Instrumentation and Methods for Astrophysics · Physics 2022-02-15 Jacopo Villa , Andrew French , Jay McMahon , Daniel Scheeres , Benjamin Hockman

Time-dependent gravity data from satellite missions like GRACE-FO reveal mass redistribution in the system Earth at various time scales: long-term climate change signals, inter-annual phenomena like El Nino, seasonal mass transports and…

Numerical Analysis · Mathematics 2024-12-20 Naomi Schneider , Volker Michel , Nico Sneeuw

Gravimeters are devices which measure changes in the value of the gravitational acceleration, \textit{g}. This information is used to infer changes in density under the ground allowing the detection of subsurface voids; mineral, oil and gas…

Instrumentation and Detectors · Physics 2018-03-30 Steven G Bramsiepe , David Loomes , Richard P Middlemiss , Douglas J Paul , Giles D Hammond

We report a measurement of the local acceleration $g$ with ultracold neutrons based on quantum states in the gravity potential of the Earth. The new method uses resonant transitions between the states $|1> -> |3>$ and for the first time…

High Energy Physics - Experiment · Physics 2015-12-31 G. Cronenberg , H. Filter , M. Thalhammer , T. Jenke , H. Abele , P. Geltenbort
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