Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Marwan Younis"'
Publikováno v:
IET Radar, Sonar & Navigation, Vol 15, Iss 10, Pp 1195-1208 (2021)
Abstract Spaceborne synthetic aperture radar (SAR) with digital beam‐forming (DBF) in elevation uses very sharp time‐variant antenna beams to improve the signal‐to‐noise ratio (SNR) and range ambiguity‐to‐signal ratio. In acquisition scen
Externí odkaz:
https://doaj.org/article/78159437f9994255b906e831531ee268
Autor:
Marwan Younis, Abdul Ghafoor Abdullah
Publikováno v:
مجلة التربية والعلم, Vol 25, Iss 3, Pp 120-135 (2012)
Abstract: Two designs of photonic crystal fibers with similar parameters are proposed, the difference only in the air fraction. The Air fraction of the PCF1 is 0.4, while for the second design is increased to 0.45. The propagation properties of the b
Externí odkaz:
https://doaj.org/article/20660e05d4aa49cbb1c6473b02e0b71d
Publikováno v:
International Journal of Antennas and Propagation, Vol 2009 (2009)
The trend in the conception of future spaceborne radar remote sensing is clearly toward the use of digital beamforming techniques. These systems will comprise multiple digital channels, where the analog-to-digital converter is moved closer to the ant
Externí odkaz:
https://doaj.org/article/4f69f02834b74b8daed4a778464b93d6
Autor:
Scott Hensley, Suzanne Smrekar, Bruce Campbell, Marco Mastrogiuseppe, Dragana Perkovic-Martin, Marwan Younis, Howard Zebker
VERITAS is a NASA Discovery mission that was selected on June 2, 2021 and is a partnership between scientists and engineers at NASA/JPL and with the German (DLR), Italian (ASI) and French Space Agencies (CNES). VERITAS would carry two instruments, VI
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::069af52f5e1121e9cfb7cc8f4947c579
https://doi.org/10.5194/epsc2022-751
https://doi.org/10.5194/epsc2022-751
Publikováno v:
IEEE Geoscience and Remote Sensing Magazine. 9:121-124
Presents information on the work of the GRSS Instrumentation and Future Technologies Technical Committee Working Groups.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c43370d5637f3a87ebd45f2adb57596
https://doi.org/10.1109/mgrs.2021.3078347
https://doi.org/10.1109/mgrs.2021.3078347
Autor:
Oliver Schrape, Milos Krstic, Piotr Penkala, Giandomenico Amendola, Luigi Boccia, Chun-Xu Mao, Marwan Younis, Tobias Rommel, Emilio Arnieri, Srdjan Glisic, Steven Gao, Anselm Ho, Uroschanit Yodprasit
Publikováno v:
International Journal of Microwave and Wireless Technologies. 12:477-486
This paper presents the integration and channel characterization of a highly integrated dual-band digital beamforming space-borne synthetic aperture radar (SAR) receiver. The proposed SAR sensor is a low-cost, lightweight, low-power consumption, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12e7d1b4a4fe41122dff435ecee3629c
https://doi.org/10.1017/s175907872000063x
https://doi.org/10.1017/s175907872000063x
Autor:
Michelangelo Villano, Gerhard Krieger, F. de Almeida, Marwan Younis, Alberto Moreira, Tobias Bollian
Publikováno v:
IGARSS
The development of synthetic aperture radar (SAR) instruments at higher carrier frequency is motivated, among others, by the relative wavelength scaling, which provides an increased bandwidth and reduced physical dimensions of the RF hardware, for th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75bfd3e3d5aa72517732ea61ea74692a
https://elib.dlr.de/146765/
https://elib.dlr.de/146765/
Autor:
Uroschanit Yodprasit, Marwan Younis, Chun-Xu Mao, Anselm Ho, Tobias Rommel, Milos Krstic, Steven Gao, Srdjan Glisic, Piotr Penkala, Emilio Arnieri, Oliver Schrape, Luigi Boccia, Giandomenico Amendola
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 67:1197-1206
This paper presents the first experimental assessment of a highly integrated dual-band dual-polarized antenna tile designed for synthetic aperture radar (SAR) digital beamforming (DBF) satellite applications. The demonstrator described in this paper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d614be657850a2738bd7bcce30cfa6d2
https://doi.org/10.1109/tmtt.2018.2889038
https://doi.org/10.1109/tmtt.2018.2889038
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 16:40-44
Spatial resolution and swath width are fundamental quality parameters for spaceborne synthetic aperture radar (SAR) products. They have driven the research on new spaceborne SAR system concepts in the last decades, and a new generation of SAR systems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::238935a64860fbc0bbe348bbe397e040
https://doi.org/10.1109/lgrs.2018.2867723
https://doi.org/10.1109/lgrs.2018.2867723