Results 141 to 150 of about 402,837 (431)
Novel Use of Photovoltaics for Backup Spacecraft Laser Communication System [PDF]
arXiv, 2017 Communication with a spacecraft is typically performed using Radio Frequency (RF). RF is a well-established and well-regulated technology that enables communication over long distances as proven by the Voyager 1 & II missions. However, RF requires licensing of very limited radio spectrum and this poses a challenge in the future, particularly with ...
arxiv
, 2018 6 pages, 1 figure; To be published in the ASP Monograph Series, "Science with a Next-Generation VLA", ed. E. J. Murphy (ASP, San Francisco, CA)
Lazio, T. Joseph W., Asmar, Sami
openaire +2 more sources
Survey of VLF Electric Fields in the Magnetosphere With the Polar Orbiting Spacecraft, 1964–45A [PDF]
, 1966 F. L. Scar, G. M. Crook, R. W. Fredricks
openalex +1 more source
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT Nitramine propellants have attracted considerable attention in the domain of solid rockets and gun propulsion because of their energetic and smokeless features. Ammonium perchlorate (AP) is the widely used oxidizer in propellants owing to the excellent burning characteristics.
Makoto Kohga +2 more
wiley +1 more source
Relativistic analysis of the LISA long range optical links
, 2005 The joint ESA/NASA LISA mission consists in three spacecraft on heliocentric orbits, flying in a triangular formation of 5 Mkm each side, linked by infrared optical beams.
Bertrand Chauvineau +7 more
core +3 more sources
Transmission of Sound and Vibration to a Shroud-Enclosed Spacecraft [PDF]
, 1966 Jerome E. Manning +2 more
openalex +1 more source
Integral-Type Sliding Mode Fault-Tolerant Control for Attitude Stabilization of Spacecraft
IEEE Transactions on Control Systems Technology, 2015 Two fault-tolerant control (FTC) schemes for spacecraft attitude stabilization with external disturbances are proposed in this brief. The approach is based on integral-type sliding mode control strategy to compensate for actuator faults without ...
Qiang Shen +3 more
semanticscholar +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.An ensemble of data assimilations method is employed to evaluate the impact of different potential future small‐satellite constellations carrying microwave‐sounding instruments to explore the optimal design of a constellation for global numerical weather prediction.
Katie Lean +5 more
wiley +1 more source
RCA Satcom 3-Axis spacecraft experience at geosynchronous altitude [PDF]
, 1977 The RCA Satcom space segment presently consists of two three-axis stabilized communication satellites which have been in orbit at geosynchronous altitudes for 11 and 8 months respectively.
Napoli, J., Seliga, J.
core +1 more source
Structure Modeling Activation Free Fourier Network for Spacecraft Image Denoising [PDF]
arXivSpacecraft image denoising is a crucial fundamental technology closely related to aerospace research. However, the existing deep learning-based image denoising methods are primarily designed for natural image and fail to adequately consider the characteristics of spacecraft image(e.g.
arxiv