Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Gerry G. Ortiz"'
Autor:
Keith E. Wilson, Malcolm W. Wright, Abhijit Biswas, Norman A. Page, Gerry G. Ortiz, Babak Sanii, Hamid Hemmati
Publikováno v:
Free-Space Laser Communication Technologies XIV.
Communication links with multi-giga-bits per sec (Gbps) data-rates depicting both LEO-GEO and GEO-to-Ground optical communications were characterized in the laboratory. A 5.4 Gbps link, with a capability of 7.5 Gbps, was demonstrated in the laborator
Publikováno v:
Free-Space Laser Communication Technologies XIII.
NASA/JPL has been developing technologies to accurately point a laser beam from deep space with sub-micro-radian precision for data transmission systems. A novel approach to achieve this goal is based on using high bandwidth inertial sensors to compe
Publikováno v:
Free-Space Laser Communication Technologies XIII.
This paper summarizes NASA/JPL progress on sub-microradian pointing system design. Sub-microradian pointing has been found to be critical for the deep space optical communications from earlier studies. The objective of current effort is to develop th
Autor:
Donald R. Johnson, Muthu Jeganathan, James R. Lesh, Brad Liu, Abhijit Biswas, John V. Sandusky, George Parker, Jon De Pew, Sukhan Lee, Gerry G. Ortiz
Publikováno v:
SPIE Proceedings.
Tlis paper presents an overview of the preliminary design of both the flight and ground systems of the Optical Communication Demonstration and High-Rate Link Facility which will demonstrate optical communication from the International Space Station t
Autor:
John V. Sandusky, Muthu Jeganathan, Keith E. Wilson, Gerry G. Ortiz, James R. Lesh, Shinhak Lee, George Parker, Abi Biswas
Publikováno v:
AIP Conference Proceedings.
Motivated by demands for faster, better, cheaper spacecraft, NASA is developing deep-space optical communication technology which promises reduced mass, volume, and power consumption compared to radio-frequency technology. While earth-orbiting optica
Autor:
Marc C. Foote, R. F. Leonard, Kul B. Bhasin, Brian D. Hunt, Richard P. Vasquez, Javier J. Bautista, Robert R. Romanofsky, B. H. Fujiwara, Hamid Javadi, Wilbert Chew, Jeff B. Barner, A. J. Guern, C.M. Chorey, Gerry G. Ortiz, Paul D. Wamhof, Daniel L. Rascoe, J. G. Bowen
Publikováno v:
SPIE Proceedings.
A low-noise microwave receiver downconverter utilizing thin-film high-critical-temperature superconducting (HTS) passive circuitry and semiconductor active devices has been developed for use in space. It consists of an HTS pre-select filter, a cryoge