Results 11 to 20 of about 45,693 (310)

An Indoor Microwave Radiometer for Measurement of Tropospheric Water [PDF]

open access: yes, 2023
This article presents the first detailed description of the innovative measurement setup of an indoor tropospheric microwave radiometer [TROpospheric WAter RAdiometer (TROWARA)] that avoids water films on radome.
Wang, Wenyue   +7 more
core   +1 more source

A RADIOMETER FOR METEOROLOGICAL MEASUREMENTS WITH ACCURATE CALIBRATION BY THE SKY BRIGHTNESS TEMPERATURE [PDF]

open access: yesРадиофизика и электроника, 2016
Methods for passive sensing the atmosphere in the microwave range are one of important directions of remote sensing of environmental protection. To develop simple and cost-effective technical solutions and radiometric measuring techniques is an important
V. A. Kabanov
doaj   +1 more source

Electromagnetic compatibility of passive and active channels of integration radar systems [PDF]

open access: yesРадиофизика и электроника, 2020
Subject and Purpose. The paper is devoted to the noise immunity problem of the receiving channel of the radiometer as part of an integration passive-active radar system.
I.M. Mytsenko, Yu.A. Pedenko
doaj   +1 more source

Design of Novel, Water Soluble and Highly Luminescent Europium Labels with Potential to Enhance Immunoassay Sensitivities

open access: yesMolecules, 2017
To meet the continual demands of more-sensitive immunoassays, the synthesis of novel luminescent Eu(III) chelate labels having similar substituted 4-(phenylethynyl)pyridine chromophores in three different chelate structure classes are reported ...
Henri Sund   +3 more
doaj   +1 more source

Empirical model for backscattering polarimetric variables in rain at W-band: motivation and implications [PDF]

open access: yesAtmospheric Measurement Techniques
The established relationships between the size, shape, and terminal velocity of raindrops, along with the spheroidal shape approximation (SSA), are commonly employed for calculating radar observables in rain.
A. Myagkov, T. Nomokonova, M. Frech
doaj   +1 more source

Soil Moisture Retrieval Using SMAP L-Band Radiometer and RISAT-1 C-Band SAR Data in the Paddy Dominated Tropical Region of India

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
National Aeronautics and Space Administration's soil moisture active–passive (SMAP) mission potential to produce high-resolution soil moisture suffered adversely due to its L-band synthetic-aperture radar (SAR) failure.
Gurjeet Singh   +5 more
doaj   +1 more source

High-Precision Measurement of Sea Surface Temperature with Integrated Infrared Thermometer

open access: yesSensors, 2022
The sea surface temperature (SST) is a crucial parameter system in climate monitoring. Satellite remote sensing is currently the most common approach for measuring long-term and large-area sea surface temperatures.
Kailin Zhang, Xinyu Wang
doaj   +1 more source

Resolution Enhancement of SMAP Passive Soil Moisture Estimates

open access: yesRemote Sensing, 2022
The Soil Moisture Active Passive (SMAP) mission includes a unique combination of instruments intended to provide daily global soil moisture data with high accuracy and resolution.
Jordan P. Brown, David G. Long
doaj   +1 more source

HATPRO microwave radiometer measurements at AWIPEV, Ny-Ålesund (2019-2021)

open access: yes, 2022
The microwave radiometer HATPRO has seven K band (22.235-31.4 GHz) channels that are sensitive to the path integrated amount of cloud liquid water (clwvi) and the path integrated amount of water vapor (precipitable water, prw).
Ritter, Christoph, Ebell, Kerstin
core   +1 more source

A Tri-Band Cooled Receiver for Geodetic VLBI

open access: yesSensors, 2021
This paper shows a simultaneous tri-band (S: 2.2–2.7 GHz, X: 7.5–9 GHz and Ka: 28–33 GHz) low-noise cryogenic receiver for geodetic Very Long Baseline Interferometry (geo-VLBI) which has been developed at Yebes Observatory laboratories in Spain.
José A. López-Pérez   +16 more
doaj   +1 more source

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