Results 231 to 240 of about 1,734,402 (280)

Deep learning-based early warning of tailings storage facility instability using Sentinel-1 and Radarsat-2 InSAR calibrated with a geomechanical model. [PDF]

Sci Rep
Bayaraa M, Sheil B, Rossi C.
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Orbit prediction and Earth shadow modeling for Chandrayaan-2 Orbiter

Astrophysics and Space Science, 2021
Chandrayaan-2, India’s second Moon mission, comprised of Orbiter, Lander and Rover modules was launched on July 22, 2019. The Chandrayaan-2 (CH2) Orbiter, which carries eight scientific payloads, is placed into a circular lunar orbit of 100 km altitude with an orbital period of around 120 minutes. After the successful injection of the spacecraft in the
Vineet K. Srivastava, Padmdeo Mishra, B. N. Ramakrishna, B. S. Kushvah   +3 more
openaire   +1 more source

Unstable periodic orbits and prediction

Physical Review A, 1991
A hierarchical approximation of a generic chaotic attractor can be formulated in terms of unstable periodic orbits. We demonstrate the possibility of extracting the most dominant unstable periodic orbits from a measurement of a time-continuous flow. Since unstable periodic orbits not only represent the static properties of the system but also dominate ...
, Pawelzik, , Schuster
openaire   +2 more sources

Hypercomplex Multilayer Perceptron for Planetary Orbits Prediction

2023 9th International Conference on Control, Decision and Information Technologies (CoDIT), 2023
This contribution is oriented towards proposing a novel strategy to simulate and predict planetary orbits based on exploiting the optimized performance of hypercomplex neural networks. These structures perform a learning process based on quaternion algebra thus leading to lower the number of epochs required to obtain an adequate degree of approximation.
Buscarino A., Famoso C., Fortuna L., Puglisi G.   +3 more
openaire   +1 more source

Extended prediction of QZSS orbit and clock

2016 International Conference on Localization and GNSS (ICL-GNSS), 2016
This paper presents results on the accuracy of the extended (aka autonomous) orbit and clock predictions for the first QZSS satellite in orbit. The purpose of extended prediction is the reduction of the time-to-first-fix of a stand-alone satellite navigation receiver and the improvement of the availability of positioning during weak signal conditions ...
Helena Leppäkoski, Sakari Rautalin, Xiaolong Zhang, Simo Ali-Löytty, Robert Piché   +4 more
openaire   +2 more sources

A discussion on orbital analysis - Some problems of orbital prediction

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1967
Abstract Attention is paid to the problem of predicting accurately (a) the orbital elements of a balloon satellite over long periods of time, and (b) the time the satellite will pass through a given point in the orbit, a few days or weeks in advance of the event.
D. E. Smith, A. Abayaratna
openaire   +1 more source

Orbit Prediction Technology

2018
The OTV fulfills orbital maneuver by selecting appropriate transfer points to save fuels. Usually, before the orbital maneuver, it shall carry out non-powered free sliding in large elliptic orbit for a long time. During such process, due to the longer sliding period, the error of inertial navigation will be accumulated as time elapses.
Xuefeng Li, Chaobing Li
openaire   +1 more source

Nimerical Averaging in Orbit Prediction

AIAA Journal, 1972
This paper is a presentation of some useful aspects of a numerical averaging technique that has been applied with considerable success to the orbit prediction problem for artificial satellites. The method has been tested in a variety of situations wherein the satellite is subjected to combinations of perturbations for which adequate analytic theories ...
openaire   +1 more source