Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Gabriel Virbila"'
Autor:
Adrian Tang, Nacer Chahat, Yangyho Kim, Arhison Bharathan, Gabriel Virbila, Hans-Peter Marshall, Thomas Van Der Weide, Gaurangi Gupta, Raunika Anand, Goutam Chattopadhyay, Mau-Chung Frank Chang
Publikováno v:
IEEE Journal of Microwaves, Vol 4, Iss 1, Pp 43-55 (2024)
This article presents development of a UAV based frequency modulated continuous wave (FMCW) radar system for remotely sensing the water contained within snowpacks. To make the radar system compatible with the payload requirements of small UAV platfor
Externí odkaz:
https://doaj.org/article/2744589eb3c84430bd73d19343f491fe
Autor:
Adrian Tang, Yangyho Kim, Yan Zhang, Gabriel Virbila, Nathaniel Livesey, Goutam Chattopadhyay, Subash Khanal, Jacob Kooi, Mau-Chung Frank Chang
Publikováno v:
IEEE Journal of Microwaves, Vol 2, Iss 4, Pp 599-613 (2022)
This article presents development of CMOS system-on-chip spectrometer processor for Spaceborne Earth Science, Planetary Science and Astronomy. The developed chip is intended for use in rotational emission spectroscopy observations from microwave to s
Externí odkaz:
https://doaj.org/article/fbe091e366e345f9bc9085807f8f4c73
Autor:
Adrian Tang, Maria Alonso Del Pino, Yanghyo Kim, Yan Zhang, Theodore Reck, Cecile Jung-Kubiak, Deacon Nemchick, Logan Dyer, Gabriel Virbila, Goutam Chattopadhyay, Mau-Chung Frank Chang
Publikováno v:
IEEE Journal of Microwaves, Vol 1, Iss 2, Pp 560-573 (2021)
This paper presents an overview of a sub-orbital flight demonstration with a 183 GHz and 540–600 GHz limb-sounding instrument aboard a stratospheric ballooncraft. The 183 GHz band provides soundings of stratospheric H2O and is implemented with a hy
Externí odkaz:
https://doaj.org/article/4a87320090114f8683266124f8e8d987
Autor:
Adrian Tang, Subash Khanal, Gabriel Virbila, Nathaniel Livesey, Frank Werner, Goutam Chattopadhyay, Mau-Chung Frank Chang
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 70:21-25
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c9a009362727f8045524a05ca06f6c6
https://doi.org/10.1109/tcsii.2022.3205848
https://doi.org/10.1109/tcsii.2022.3205848
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 68:3941-3950
This paper presents direct sequence spread spectrum (DS/SS) datalinks operating at 92-100 GHz with spreading factors up to 100K. Unlike traditional DS/SS datalinks which rely on preamble and cyclic dispreading for synchronization, the reported datali
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf12e46a0782234fe4963c073e2078e9
https://doi.org/10.1109/tcsi.2021.3092766
https://doi.org/10.1109/tcsi.2021.3092766
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. 10:212-220
This article presents delay-correlating direct-sequence spread-spectrum (DS/SS) radars at mm-wave frequencies, which transmit a bit sequence waveform instead of frequency chirps or pulses to estimate time of flight between the radar and scatterers wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fde9f9a29f7f1ae28b7871cf5265a30
https://doi.org/10.1109/tthz.2020.2969105
https://doi.org/10.1109/tthz.2020.2969105
Autor:
Goutam Chattopadhyay, Logan Dyer, Theodore Reck, Maria Alonso Del Pino, Mau-Chung Frank Chang, Deacon J. Nemchick, Adrian Tang, Yanghyo Kim, Yan Zhang, Cecile Jung-Kubiak, Gabriel Virbila
Publikováno v:
IEEE Journal of Microwaves, 1(2)
This paper presents an overview of a sub-orbital flight demonstration with a 183 GHz and 540–600 GHz limb-sounding instrument aboard a stratospheric ballooncraft. The 183 GHz band provides soundings of stratospheric H 2 O and is implemented with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b40856a553acf83215172d9a0ddd938
https://doi.org/10.1109/jmw.2021.3060622
https://doi.org/10.1109/jmw.2021.3060622
Autor:
Arthur Bekaryan, Robert G. Nagele, Gabriel Virbila, Kona Keerti S, Jonathan J. Lynch, Austin Garrido, Daniel Zehnder
Publikováno v:
Situation Awareness in Degraded Environments 2020.
This paper describes progress in the ongoing development of a radar for rotorcraft that utilizes new CMOS ICs that were development for automotive applications. The radar design is discussed, including a lens-based focal plane array that is fed by pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b37fe8d4e4a6ce1f8ec3ff5d1ac3fcb9
https://doi.org/10.1117/12.2565022
https://doi.org/10.1117/12.2565022
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. 7:244-249
A new CMOS-based spectroscopy instrument for in situ rotational spectroscopy of gases in space is presented. The design is based on the pulsed Fourier transform method of Balle–Flygare but operates at mm-wave frequencies as oppose to traditional mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21ba359fd70d7151cd24a8bda96fdcea
https://doi.org/10.1109/tthz.2017.2692041
https://doi.org/10.1109/tthz.2017.2692041
Autor:
Yan Zhao, Yuan Du, Gabriel Virbila, Adrian Tang, Yanghyo Kim, Mau-Chung Frank Chang, Theodore Reck, Zuow-Zun Chen, Yilei Li, Richard Al Hadi, Yinuo Xu
Publikováno v:
IEEE Journal of Solid-State Circuits. 51:3005-3019
This paper presents the design and characterization of a 0.56 THz frequency synthesizer implemented in standard 65 nm CMOS technology. Its front end consists of triple-push Colpitts oscillators (TPCOs), followed by the first and second stage injectio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b674c5182488db5539a9cdae14ba7c2c
https://doi.org/10.1109/jssc.2016.2601614
https://doi.org/10.1109/jssc.2016.2601614