Zobrazeno 1 - 10
of 762
pro vyhledávání: '"satellite formation"'
Publikováno v:
Tongxin xuebao, Vol 45, Pp 51-61 (2024)
Aiming at the time-sensitive network (TSN) gating scheduling required high synchronization accuracy of adjacent nodes, the delay fluctuation of inter-satellite wireless links caused the deviation of gate opening of adjacent nodes, resulting in the pr
Externí odkaz:
https://doaj.org/article/cb0b503648ab47f6854ba9798f960e7f
A Method for Along-Track Interferometric Phase Elimination of Large Baseline Imaging Radar Altimeter
Publikováno v:
IEEE Access, Vol 12, Pp 158215-158225 (2024)
The large baseline imaging radar altimeter (LB-IRA), deployed in a dual-satellite formation, enhances altimetric accuracy to sub-centimeter levels through the use of helical orbits to extend the interferometric baseline. However, for critical oceanog
Externí odkaz:
https://doaj.org/article/a71b73ecab4b4bd79913fc2865c03a1d
Publikováno v:
IEEE Access, Vol 12, Pp 108389-108398 (2024)
This paper introduces a novel neural network adaptive fractional-order sliding mode control strategy based on the minimal learning parameter method (MLPNN-FOSMC). This method aims to solve the problem of relative position control in satellite formati
Externí odkaz:
https://doaj.org/article/99b3b20be2c04f2597c591035f1b7e25
Publikováno v:
Tongxin xuebao, Vol 44, Pp 137-148 (2023)
Although satellite formation flying could effectively support deterministic transmission due to its stable formation, but its formation control required significant real-time computational overhead and did not support flexible deployment for multi-mi
Externí odkaz:
https://doaj.org/article/b5331dfa36504e87886fd926da9ca724
Autor:
S. Mathavaraj, Eric A. Butcher
Publikováno v:
Aerospace, Vol 11, Iss 9, p 762 (2024)
In this paper, a recently proposed SE(3)-constrained extended Kalman filter (EKF) is extended to formulate a strategy for relative orbit estimation in a space-based sensor network. The resulting consensus SE(3)-constrained EKF utilizes space-based se
Externí odkaz:
https://doaj.org/article/60c4cd8c5e1c46ea9aeb8184cd2a905f
Autor:
Marco D’Errico
Publikováno v:
Aerospace, Vol 11, Iss 7, p 600 (2024)
Parasitic SAR formation can be flown at low altitude using smaller satellites and adding potential to conventional SAR mission From the orbital point of view, the main issue is related to the differential aerodynamic drag, which rapidly disrupts the
Externí odkaz:
https://doaj.org/article/b329fb357d8e4462948de6db09f5caff
Autor:
S. Chen, Yu. M. Zabolotnov
Publikováno v:
Космические аппараты и технологии, Vol 6, Iss 4, Pp 235-245 (2022)
The problem of controlling a rotating hub-spoke tethered formation system in low Earth orbit is considered, in which microsatellites are located radially around the central spacecraft (hub) and connected to it by tethers (spokes). To analyze the dyna
Externí odkaz:
https://doaj.org/article/01a38302c6a54c7bbade004263a3e356
Autor:
Liwei Hao, Yingchun Zhang
Publikováno v:
Aerospace, Vol 11, Iss 6, p 416 (2024)
This article explores novel in-orbit drag-free technology that can be utilized for deep space detection scientific missions. In this study, we considered a two-test-mass drag-free method and analyzed the design of the drag-free and attitude control s
Externí odkaz:
https://doaj.org/article/20ed5d852b734bb1ab296d081e8f8954
Autor:
Darren M. Williams, Michael E. Zugger
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 9, p 208 (2024)
The number of planetary satellites around solid objects in the inner solar system is small either because they are difficult or unlikely to form or because they do not survive for astronomical timescales. Here we conduct a pilot study on the possibil
Externí odkaz:
https://doaj.org/article/de934d5cca0a4f8aa4910a5a2128cc8a
Autor:
N. P. Hammond, G. C. Collins
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 9, p 200 (2024)
Neptune’s moon Triton has two remarkable attributes: its retrograde orbit suggests that it was captured from the Kuiper Belt, and Triton has one of the youngest surfaces of all the icy satellites in the solar system. Soon after capture, Triton expe
Externí odkaz:
https://doaj.org/article/3a4a69ac70f34c12959b293a3f049c44