Results 21 to 30 of about 27,446 (309)
Rainfall Detection and Rainfall Rate Estimation Using Microwave Attenuation
Atmosphere, 2018 Eight microwave links operating at frequencies ranging from 6 to 8 GHz and with path lengths ranging from 5.7 to 37.4 km traversing the city of Seoul, Korea are used to detect rainfall and estimate path-averaged rainfall rates.
Min-Seong Kim, Byung Hyuk Kwon
doaj +1 more source
Multilevel modulated signal transmission over serial single-mode and multimode fiber links using vertical-cavity surface-emitting lasers for millimeter-wave wireless communications [PDF]
, 2007 Quadrature phase-shift keying, 16 quadrature amplitude modulation (QAM), and 64-QAM data transmission-Worldwide Interoperability for Microwave Access modulation schemes-at 6 and 20 MS/s is demonstrated for a link that emulates a cost-effective 1.55-m ...
Shen, Pengbo +3 more
core +1 more source
Hollow core fiber microwave photonics link
, 2021 A 7.7 km long link made of Nested Antiresonant Nodeless Fiber is demonstrated to reduce microwave link loss by over 15 dB as compared to a link made of SMF-28.
David J. Richardson +13 more
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Water Vapor Density Retrieval Studies Using Commercial Millimeter-Wave Links at 38 GHz and E-Band
Remote Sensing, 2022 We study the performance of water vapor monitoring using commercial millimeter-wave backhaul links from the fifth-generation cellular networks and smart cities. A 38 GHz link and an E-band link located in Gothenburg, Sweden, are used for analysis.
Congzheng Han +3 more
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Measurement and interpolation uncertainties in rainfall maps from cellular communication networks [PDF]
Hydrology and Earth System Sciences, 2015 Accurate measurements of rainfall are important in many hydrological and meteorological applications, for instance, flash-flood early-warning systems, hydraulic structures design, irrigation, weather forecasting, and climate modelling. Whenever possible,
M. F. Rios Gaona +3 more
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Photonics, 2022 To synchronize standard frequency signals between long-distance laboratories, we carried out a frequency dissemination experiment over a 212 km cascaded urban fiber link. This cascaded link was composed of two 106 km fiber links, in which the fiber noise
Honglei Quan +6 more
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Geophysical Research Letters, 2018 Air‐moisture maps were generated based on commercial microwave links data over N. Israel and compared for the first time to European Centre for Medium‐Range Weather Forecasts (ECMWF) ERA‐Interim maps for April 2017.
P. Alpert, Y. Rubin
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Characterisation of millimetre wave multimode radio-over-fibre systems [PDF]
, 2008 Millimetre wave radio-over-fibre links using both singlemode and multimode fibres are demonstrated over a 0-50 GHz bandwidth operating at 1550 nm. Results show that good link gain can be achieved with both single mode and multimode detectors.Millimetre ...
Cryan, MJ +3 more
core +1 more source
Attenuation Correction of X-Band Radar Reflectivity Using Adjacent Multiple Microwave Links
Remote Sensing, 2020 Rain attenuation can hinder the implementation of quantitative precipitation estimations using X-band weather radar. Numerous studies have been conducted on correcting the attenuation of radar reflectivity by utilizing a dual-polarimetric radar and an ...
Min-Seong Kim, Byung Hyuk Kwon
doaj +1 more source
Linearized and High Frequency Electrooptic Modulators [PDF]
, 2005 An analysis is performed of many standard and linearized electrooptic modulators known in the industry. The transfer functions of these modulators are evaluated under a consistent set of performance figures of merit, which are gain and spur-free dynamic
Cummings, Uri Vaughan
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