The Next-Generation Multimission U.S. Surveillance Radar Network

Weber, M.; Cho, John; Herd, J.; Flavin, James M.; Benner, William; Torok, Garth S.

doi:10.1175/bams-88-11-1739

Cited by 107 publications

(60 citation statements)

References 18 publications

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“…One long-term approach that is being considered in the United States is to eventually replace radars performing different missions at different frequency bands (L, C, and S) by one type of multifunction radar at S band using phased array technology (Weber et al 2007). Such a consolidation of missions could open up the vacated bands (at least partially) for other uses.…”

Section: Attempts To Share Frequencies and Mitigate Disturbancesmentioning

confidence: 99%

The Threat to Weather Radars by Wireless Technology

Saltikoff

Cho

Tristant³

et al. 2016

Bulletin of the American Meteorological Society

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Wireless technology, such as local area telecommunication networks and surveillance cameras, causes severe interference for weather radars because they use the same operational radio frequencies. One or two disturbances can be removed from the radar image, but the number and power of the interfering wireless devices are growing all over the world, threatening that one day the radars could become useless for weather observations. Some agencies have already changed or are considering changing frequency bands, but now even other bands are under threat. Use of equipment at radio frequencies is regulated by laws and international agreements. Technologies have been developed for peaceful coexistence. If wireless devices use these technologies to protect weather radars, their data transmission capabilities become limited, so it is tempting to violate the regulations. Hence, it is an important task for the worldwide weather community to involve themselves in the radio frequency management process and work in close contact with their national radio authorities to ensure that meteorological interests be duly taken into account in any decision-making process toward the future usage of wireless devices.

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Section: Attempts To Share Frequencies and Mitigate Disturbancesmentioning

confidence: 99%

The Threat to Weather Radars by Wireless Technology

Saltikoff

Cho

Tristant³

et al. 2016

Bulletin of the American Meteorological Society

Self Cite

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“…The NWRT (The National Weather Radar Testbed) phased array radar (PAR) has demonstrated the estimation of accurate Doppler velocity and reflectivity in ground-based configuration in a single polarization mode (Forsyth et al, 2006;Weber et al, 2007;Zrnic et al, 2007). Recent NWRT measurements showed the phased array radar's ability to reduce scan time at least by a factor of 2 by rapidly steering the beam to a set of spatially diverse pointing angles using beam multiplexing (Yu et al, 2007).…”

Section: Engineering Rationale For Next Generation Airborne Radarmentioning

confidence: 99%

The next generation airborne polarimetric Doppler weather radar

Vivekanandan

Lee

Loew

et al. 2014

Geosci. Instrum. Method. Data Syst.

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Abstract.Results from airborne field deployments emphasized the need to obtain concurrently high temporal and spatial resolution measurements of 3-D winds and microphysics. A phased array radar on an airborne platform using dual-polarization antenna has the potential for retrieving high-resolution, collocated 3-D winds and microphysical measurements. Recently, ground-based phased array radar (PAR) has demonstrated the high time-resolution estimation of accurate Doppler velocity and reflectivity of precipitation and clouds when compared to mechanically scanning radar. PAR uses the electronic scanning (e-scan) to rapidly collect radar measurements. Since an airborne radar has a limited amount of time to collect measurements over a specified sample volume, the e-scan will significantly enhance temporal and spatial resolution of airborne radar observations. At present, airborne weather radars use mechanical scans, and they are not designed for collecting dual-polarization measurements to remotely estimate microphysics. This paper presents a possible configuration of a novel airborne phased array radar (APAR) to be installed on an aircraft for retrieving improved dynamical and microphysical scientific products. The proposed APAR would replace the aging, Xband Electra Doppler radar (ELDORA). The ELDORA Xband radar's penetration into precipitation is limited by attenuation. Since attenuation at C-band is lower than at Xband, the design specification of a C-band airborne phased array radar (APAR) and its measurement accuracies are presented. Preliminary design specifications suggest the proposed APAR will meet or exceed ELDORA's current sensitivity, spatial resolution and Doppler measurement accuracies of ELDORA and it will also acquire dual-polarization measurements.

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“…The data indicates a plateau from about 2002 until present suggesting maturity of the technology with little room left for significant advancements. Further progress might come from combining radar data with short term numerical weather prediction models and/or introduction of rapidly scanning agile beam phase array radars Weber et al, 2007). Doppler velocities are potent indicators of diverging (converging) flows such as observed in strong outflows from collapsing storms.…”

Section: Observations Of Phenomenamentioning

confidence: 99%

“…At its core is a phased array antenna wherein beam position and shape are electronically controlled allowing rapid and adaptable scans. Thus, observations of weather and tracking/detecting aircraft for traffic management and security purposes is proposed (Weber et al, 2007). Another futuristic concept is exemplified in proposed networks for Cooperative Adaptive Sensing of the Atmosphere (CASA) consisting of low power 3 cm wavelength phased array radars (McLaughlin et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Doppler Radar for USA Weather Surveillance

Zrnić¹

2012

Doppler Radar Observations - Weather Radar, Wind Profiler, Ionospheric Radar, and Other Advanced Applications

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The Next-Generation Multimission U.S. Surveillance Radar Network

Cited by 107 publications

References 18 publications

The Threat to Weather Radars by Wireless Technology

The Threat to Weather Radars by Wireless Technology

The next generation airborne polarimetric Doppler weather radar

Doppler Radar for USA Weather Surveillance

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