Results 31 to 40 of about 27,446 (309)

Dynamic rainfall monitoring using microwave links [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2016
In this work, we propose a sparsity-exploiting dynamic rainfall monitoring methodology using rain-induced attenuation measurements from microwave links. To estimate rainfall field intensity dynamically from a limited number of non-linear measurements, we exploit physical properties of the rainfall such as spatial sparsity and non-negativity along with ...
Venkat Roy, Shahzad Gishkori, Geert Leus
openaire   +3 more sources

Errors and uncertainties in microwave link rainfall estimation explored using drop size measurements and high-resolution radar data

open access: yes, 2010
Microwave links can be used for the estimation of path-averaged rainfall by using either the path-integrated attenuation or the difference in attenuation of two signals with different frequencies and/or polarizations.
Uijlenhoet, Remko   +8 more
core   +1 more source

Optical-microwave transmission system with subcarrier multiplexing for industrial measurement systems

open access: yesJournal of Telecommunications and Information Technology, 2002
We describe short-distance three-channel optical-microwave link with subcarrier multiplexing for transmission digital and/or analog data between different points of industrial measurement systems.
Jarosław Dawidczyk   +4 more
doaj   +1 more source

Rainfall Monitoring Based on Next-Generation Millimeter-Wave Backhaul Technologies in a Dense Urban Environment

open access: yesRemote Sensing, 2020
High-resolution and accurate rainfall monitoring is of great importance to many applications, including meteorology, hydrology, and flood monitoring. In recent years, microwave backhaul links from wireless communication networks have been suggested for ...
Congzheng Han   +4 more
doaj   +1 more source

Fading prediction on microwave links for airborne communications [PDF]

open access: yesIEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211), 2002
Fade depth prediction on airborne line-of-sight communication links is considered. There is no specific model for this scenario at the moment. The two ray multipath model, adapted to a realistic scenario of hilly or mountainous terrain, was used to account for flight and terrain geometry and for antenna parameters.
Sergey Loyka   +2 more
openaire   +1 more source

A 325 GHz analog photonic link

open access: yes, 2022
S.108-111A 325 GHz analog photonic link (APL) is demonstrated by employing a recently reported 500 GHz bandwidth Mach-Zehnder modulator and a uni-travelling carrier photodetector.
Fedoryshyn, Yuriy   +11 more
core   +1 more source

Rainfall Map from Attenuation Data Fusion of Satellite Broadcast and Commercial Microwave Links

open access: yesSensors, 2022
The demand for accurate rainfall rate maps is growing ever more. This paper proposes a novel algorithm to estimate the rainfall rate map from the attenuation measurements coming from both broadcast satellite links (BSLs) and commercial microwave links ...
Fabio Saggese   +2 more
doaj   +1 more source

Microwave plasmonic mixer in a transparent fibre–wireless link [PDF]

open access: yesNature Photonics, 2018
To cope with the high bandwidth requirements of wireless applications1, carrier frequencies are shifting towards the millimetre-wave and terahertz bands2-5. Conversely, data is normally transported to remote wireless antennas by optical fibres. Therefore, full transparency and flexibility to switch between optical and wireless domains would be ...
Y. Salamin   +12 more
openaire   +4 more sources

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Physics-based large-signal sensitivity analysis of microwave circuits using technological parametric sensitivity from multidimensional semiconductor device models [PDF]

open access: yes, 1997
The authors present an efficient approach to evaluate the large-signal (LS) parametric sensitivity of active semiconductor devices under quasi-periodic operation through accurate, multidimensional physics-based models.
Bonani, S.   +10 more
core   +1 more source

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