Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Allen Zahrai"'
Publikováno v:
Aerospace, Vol 3, Iss 3, p 28 (2016)
This paper investigates the feasibility of a backend design for real-time, multiple-channel processing digital phased array system, particularly for high-performance embedded computing platforms constructed of general purpose digital signal processor
Externí odkaz:
https://doaj.org/article/54b74761e9f345d5b11da4b469f5a02f
Autor:
Yan Zhang, Matt McCord, Mark Yeary, Andrew D. Byrd, Jorge L. Salazar, John Meier, Dusan Zrnic, Lal Mohan Bhowmik, Redmond Kelly, Guifu Zhang, Robert D. Palmer, Caleb Fulton, Allen Zahrai, Damon Schmidt, Shaya Karimkashi, Richard J. Doviak
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 55:2827-2841
Future weather radar systems will need to provide rapid updates within a flexible multifunctional overall radar network. This naturally leads to the use of electronically scanned phased array antennas. However, the traditional multifaced planar anten
Autor:
Igor Ivic, Daniel J. Wasielewski, Christopher D. Curtis, Rafael Mendoza, David Schvartzman, Eddie Forren, Sebastián M. Torres, F. Allen Zahrai
Publikováno v:
2019 IEEE International Symposium on Phased Array System & Technology (PAST).
The Advanced Technology Demonstrator (ATD) is an S-band planar polarimetric phased array radar (PPAR) at the National Severe Storms Laboratory (NSSL) in Norman, OK. It serves as a testbed for evaluating the suitability of PPAR technology for weather
Publikováno v:
Aerospace; Volume 3; Issue 3; Pages: 28
Aerospace, Vol 3, Iss 3, p 28 (2016)
Aerospace, Vol 3, Iss 3, p 28 (2016)
This paper investigates the feasibility of a backend design for real-time, multiple-channel processing digital phased array system, particularly for high-performance embedded computing platforms constructed of general purpose digital signal processor
Autor:
Christopher D. Curtis, G. Crain, Mark Yeary, Tian-You Yu, Allen Zahrai, Richard J. Doviak, Robert D. Palmer, R. Kelley, Guifu Zhang, Igor R. Ivic, John Meier
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 61:2022-2033
When the National Weather Radar Testbed (NWRT) was installed in 2004, a single-channel digital receiver was implemented so that the radar could mimic typical Weather Surveillance Radar (WSR) version 1988 Doppler (WSR-88D) capability. This, however, l
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 17:257-278
This paper reports on the steps taken by the National Severe Storms Laboratory (NSSL) to 1) develop open system hardware to facilitate upgrades to the WSR-88D (NEXRAD) radar and 2) improve identification of the type of precipitation and its quantitat
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 14:1502-1512
A portable, pencil-beam, pulsed, Doppler, 3-cm wavelength radar has been constructed to study a wide variety of meteorological phenomena including tornadoes, severe storms, and boundary layer processes. The new radar, the Doppler on Wheels (DOW), has
Autor:
Shaya Karimkashi, Robert D. Palmer, R. Kelley, John Meier, Lei Lei, Caleb Futon, Dusan S. Zrnic, Guifu Zhang, Allen Zahrai, Richard J. Doviak, Yasser Al-Rashid
Publikováno v:
2013 IEEE International Symposium on Phased Array Systems and Technology.
It is cost-effective to use a polarimetric phased array radar (PPAR) network for multi-missions of weather and aviation surveillance as well as target detection. Considering the deficiency of a planar PPAR (PPPAR) in making polarimetric weather measu
Autor:
Guifu Zhang, Richard J. Doviak, R. Kelley, Allen Zahrai, Dusan S. Zrnic, Shaya Karimkashi, Damon Schmidt, Isaac Meier, Matt McCord, Robert D. Palmer, John Meier
Publikováno v:
2013 IEEE International Symposium on Phased Array Systems and Technology.
This paper describes the design of a mobile Cylindrical Polarimetric Phased Array Radar (CPPAR) developed at the Advanced Radar Research Center (ARRC). The primary purpose of the radar is to prove the concept of a CPPAR and demonstrate its inherent p