Results 11 to 20 of about 9,096,663 (166)

The Development of high fidelity linearized J2 models for satellite formation flying control [PDF]

open access: yes, 2005
The inclusion of the linearized J2 effect in the Hill equations of relative motion gives greater insight into satellite formation flying dynamics, and the opportunity to investigate alternative feedback control strategies for the station keeping task.
Roberts, Peter C. E.   +1 more
core   +7 more sources

Development of a relative motion model for satellite formation flying around L2 [PDF]

open access: yes, 2004
Paper given at Dynamics and Control of Systems and Structures in Space (DCSSS), 6th conference, Riomaggiore, Italy, July 2004A technique for satellite formation flying modelling in LEO is applied at L2.
Roberts, Jennifer A.
core   +7 more sources

Satellite formation flying for an interferometry mission [PDF]

open access: yes, 2005
The autonomous formation flying of multiple spacecraft to replace a single large satellite will be an enabling technology for many future missions. In this research, the current status of formation flying missions and technologies is determined, and ...
Roberts, Jennifer A.
core   +7 more sources

Universal adaptive control of satellite formation flying [PDF]

open access: yes, 2005
In this paper, a new universal adaptive control scheme for satellite formation flying is developed. The underline idea of our design is to combine the domination design and the monotone adaptive gain.
Pongvthithum, R.   +3 more
core   +1 more source

How frequent is natural cloud seeding from ice cloud layers ( < −35 °C) over Switzerland? [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
Clouds and cloud feedbacks represent one of the largest uncertainties in climate projections. As the ice phase influences many key cloud properties and their lifetime, its formation needs to be better understood in order to improve climate and weather ...
U. Proske   +4 more
doaj   +1 more source

Planning Structure Transformation Strategies for Satellite Cities of the Minsk Agglomeration

open access: yesНаука и техника, 2020
Determination of  strategies for the formation of satellite cities of Minsk is the basis for the development of a polycentric model of the metropolitan agglomeration.
N. I. Zholud’
doaj   +1 more source

Study and Analysis of Landslide Potential Us-ing Numerical Modeling (A Case Study: Ghaen-Afin Roadway in Southern Khorasan) [PDF]

open access: yesپژوهش‌های زیرساخت‌های عمرانی, 2019
Steep slopes developed on the loose ground, either natural or artificial, are prone to landslide phenomena. During con-struction activities for the development of new Qaen-Afin road in South Khorasan and adjacent to Ravoshk village, a sudden landslide ...
Hossain Noferesti   +2 more
doaj   +1 more source

Observations of microphysical properties and radiative effects of a contrail cirrus outbreak over the North Atlantic [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
Contrail cirrus constitute the largest radiative forcing (RF) component to the total aviation effect on climate. However, the microphysical properties and radiative effects of contrail cirrus and natural cirrus clouds in the same meteorological ...
Z. Wang   +14 more
doaj   +1 more source

Flight Dynamics Operations of the TanDEM-X Formation [PDF]

open access: yes, 2012
Since end of 2010 the German TerraSAR-X and TanDEM-X satellites are routinely operated as the first configurable single-pass Synthetic Aperture Radar interferometer in space. The two 1340 kg satellites fly in a 514 km sun-synchronous orbit.
Aida, Saika   +4 more
core   +1 more source

Structural health assessment of Puente del Inca natural monument using the integration of instruments and technologies

open access: yesCuadernos de Investigación Geográfica, 2020
Puente del Inca is a natural monument standing over the Cuevas river in Mendoza, Argentina. The bridge currently exhibits structural deterioration due to natural and anthropic factors.
E. Lannutti   +4 more
doaj   +1 more source

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