Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Joseph A. Downey"'
Autor:
Rainee N. Simons, Joseph A. Downey, Bryan L. Schoenholz, Marie T. Piasecki, Nang T. Pham, Mansoor K. Siddiqui, Ralph G. Bonnin
Publikováno v:
2023 IEEE Space Hardware and Radio Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43ebdd2a0db6c6afdc2f3c7b903350e3
https://doi.org/10.1109/sharc56958.2023.10046250
https://doi.org/10.1109/sharc56958.2023.10046250
Publikováno v:
2019 IEEE Cognitive Communications for Aerospace Applications Workshop (CCAAW).
This study presents the application of machine learning (ML) to a space-to-ground communication link, showing how ML can be used to detect the presence of detrimental channel fading. Using this channel state information, the communication link can be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cc3c0827485d4bb1057c3ce32329ffa
https://doi.org/10.1109/ccaaw.2019.8904888
https://doi.org/10.1109/ccaaw.2019.8904888
Autor:
Joseph A. Downey, Aaron Smith
Publikováno v:
2019 IEEE Cognitive Communications for Aerospace Applications Workshop (CCAAW).
Autoencoder-based communication systems use neural network channel models to backwardly propagate message reconstruction error gradients across an approximation of the physical communication channel. In this work, we develop and test a new generative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d81dcc64b4b043ab24720380fb125bfb
https://doi.org/10.1109/ccaaw.2019.8904907
https://doi.org/10.1109/ccaaw.2019.8904907
Publikováno v:
Advances in Communications Satellite Systems. 37th International Communications Satellite Systems Conference (ICSSC-2019).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16f00c0d409ebc5cd4ce98598386813d
https://doi.org/10.1049/cp.2019.1222
https://doi.org/10.1049/cp.2019.1222
Publikováno v:
2017 Cognitive Communications for Aerospace Applications Workshop (CCAA).
National Aeronautics and Space Administration (NASA) is investigating cognitive technologies for their future communication architecture. These technologies are expected to reduce the operational complexity of the network, increase science data retur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebeade787438234b610b93489c50f5a8
https://doi.org/10.1109/ccaaw.2017.8001878
https://doi.org/10.1109/ccaaw.2017.8001878
Publikováno v:
32nd AIAA International Communications Satellite Systems Conference.
The integrated radio and optical communications (iROC) project at the NASA Glenn Research Center (GRC) is investigating the feasibility of a hybrid RF and optical communication subsystem for future deep space missions. The hybrid communications subsy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52798d0204683e66df2c9ab4b6a38cc7
https://doi.org/10.2514/6.2014-4389
https://doi.org/10.2514/6.2014-4389
Evolution of a reconfigurable processing platform for a next generation Space Software Defined Radio
The National Aeronautics and Space Administration (NASA) / Harris Ka-Band Software Defined Radio (SDR) is the first, fully reprogrammable space-qualified SDR operating in the Ka-Band frequency range. Providing exceptionally higher data communication
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10cc0275a57f31cabdcc22a4b9525ce1
https://zenodo.org/record/1263954
https://zenodo.org/record/1263954
This paper describes the approach used by the Space Communication and Navigation (SCaN) Testbed team to qualify three Software Defined Radios (SDR) for operation in space and the characterization of the platform to enable upgrades on-orbit. The three
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d847355018ddf535e1c3d341c4c49d06
https://zenodo.org/record/1263917
https://zenodo.org/record/1263917
Publikováno v:
WCSP
Due to its simplicity and robustness against wave-front distortion, pulse position modulation (PPM) with photon counting detector has been seriously considered for long-haul optical wireless systems. This paper evaluates the dual-pulse case and compa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8add4a9919bd6d4b2e27107ab6e1fbd7
https://doi.org/10.1109/wcsp.2012.6542879
https://doi.org/10.1109/wcsp.2012.6542879
Publikováno v:
30th AIAA International Communications Satellite System Conference (ICSSC).
National Aeronautics and Space Administration (NASA) has developed a space-qualified, reprogrammable, Ka-band Software Defined Radio (SDR) to be utilized as part of an on-orbit, reconfigurable testbed. The testbed will operate on the truss of the Int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d05129c8b03c52c2e6def1c930645c3
https://doi.org/10.2514/6.2012-15258
https://doi.org/10.2514/6.2012-15258