Results 91 to 100 of about 8,740 (267)

Assessment of Radiometer Calibration With GPS Radio Occultation for the MiRaTA CubeSat Mission [PDF]

, 2016
The microwave radiometer technology acceleration (MiRaTA) is a 3U CubeSat mission sponsored by the NASA Earth Science Technology Office. The science payload on MiRaTA consists of a triband microwave radiometer and global positioning system (GPS) radio ...
Bardeen, J. R., Bishop, R. L., Blackwell, W. J., Cahoy, K. L., Leslie, R. V., Lui, S. S., Marinan, A. D., Mulligan, T., Osaretin, I. A., Shields, M.   +9 more
core   +1 more source

High‐fundamental‐mode output of 1064 nm vertical‐cavity surface‐emitting laser using double embedded antiresonant oxide islands

Information &Functional Materials, Volume 2, Issue 2, Page 118-129, June 2025.
A two‐junction 1064 nm VCSEL with double antiresonant oxide islands in the top DBR is designed to enhance fundamental transverse mode operation. By optimizing island count, aperture size, thickness, and position, it achieves 36.2 mW output power, 54.8% PCE, and a 33.06 GHz 3 dB bandwidth.
Xuhao Zhang, Zhiting Tang, Yihua Wang, Feiyun Zhao, Qiao He, Aobo Ren, Jing Zhang, Wuyang Ren, Jiang Wu   +8 more
wiley   +1 more source

On the possibility of determining the parameters of the ionosphere when removing a nanosatellite from orbit using an uninsulated conductive tether

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
Currently, one of the ways to quickly remove spent nanosatellites from orbit is the use of non-insulated conductive tether, during the movement of which an electrodynamic braking force arises in the Earth's magnetic field, transferring the nanosatellite ...
T. A. Bystranova, Yu. M. Zabolotnov
doaj   +1 more source

Design, Development and Test of Engineering Models of Tethered Nanosatellites to Observe the Solar Corona [PDF]

, 2012
The present work, which is based on a cooperative effort between the Group of Space Solar Physics at the Osservatorio Astronomico di Torino (OATo), and the AeroSpace Systems Engineering Team (ASSET), at Politecnico di Torino, is part of a wider research ...
Chiesa, Sergio, Chillè, V., Corpino, Sabrina, Rougier, A., Stesina, Fabrizio, Viola, Nicole   +5 more
core  

Laser Terminals on CubeSats: Developments for Telecommunications and Quantum Links

International Journal of Satellite Communications and Networking, Volume 43, Issue 3, Page 133-146, May/June 2025.
ABSTRACT Satellite‐based laser communication is an emerging technology that is finding its way from research to industry. Compared to radio frequency (RF) systems, it has a more efficient size, weight, and power budget and, furthermore, is license free.
Christian Roubal, Till Dolejsky, Benjamin Rödiger, Fabian Rein, Jorge Rosano Nonay, René Rüddenklau, Christos Papadopoulos, Christopher Schmidt, Florian Moll   +8 more
wiley   +1 more source

Анализ движения наноспутника SamSat-218Д по траекторным измерениям

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
Анализируется движение наноспутника SamSat-218Д по траекторным измерениям. Экспериментально подтверждены особенности поведения наноспутников на низких орбитах, обусловленные как влиянием атмосферы, так и присущими им массово-инерционными характеристиками:
И. В. Белоконов, И. А. Тимбай, П. Н. Николаев, У. М. Оразбаева   +3 more
doaj   +1 more source

Satellite Data in Agricultural and Environmental Economics: Theory and Practice

Agricultural Economics, Volume 56, Issue 3, Page 493-511, May 2025.
ABSTRACT Agricultural and environmental economists are in the fortunate position that a lot of what is happening on the ground is observable from space. Most agricultural production happens in the open and one can see from space when and where innovations are adopted, crop yields change, or forests are converted to pastures, to name just a few examples.
David Wuepper, Wyclife Agumba Oluoch, Hadi Hadi   +2 more
wiley   +1 more source

Numerical Simulations for Optimizing Small Satellite Constellations for TGF Studies

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 8, 28 April 2025.
Abstract The detection of Terrestrial Gamma ray Flashes (TGFs) from space is mostly made by astrophysics satellites, which only provide single‐point measurements. Future TGF missions could consist in performing simultaneous detection by a detector array in space.
Melody Pallu, Sebastien Celestin, Philippe Laurent   +2 more
wiley   +1 more source

Nanosatellite aerobrake maneuvering device

, 2017
Change of paper's structure, size reducing. 18 pages total, 14 figures.
Melnikova, Valeriia, Borovikov, Alexander, Koretskii, Maksim, Smirnova, Yuliya, Timakova, Ekaterina, Yu, Zhaokai, Kuznetsov, Arseniy, Frolov, Kirill, Tenenbaum, Stepan, Rachkin, Dmitriy, Kotsur, Oleg, Nerovny, Nikolay, Mayorova, Vera, Grigorjev, Anton, Goncharov, Nikita   +14 more
openaire   +2 more sources

Satellite Formation Control for Cooperative Observation around the Rotating China Space Station

Space: Science & Technology
This study investigates the near-natural formation control of a nanosatellite cluster for cooperative observation of the China Space Station (CSS) with rotational motion. First, a CSS-centered inertial frame is introduced, and an open-loop dynamics model
Hao Zhou, Bohan Jiao, Zhuojun Hou, Zhaohui Dang   +3 more
doaj   +1 more source