Results 71 to 80 of about 27,405 (212)
Integrated microwave power sensor
Electronics Letters, 1995 A new MMIC compatible sensor that measures RF power transmitted over a 50 /spl Omega/ coplanar waveguide is presented. The sensor is based on the thermoelectric effect in AlGaAs and GaAs/AlGaAs micromachining technology is used for realisation. A sensitivity of 1.1 V/W has been achieved with a reflection coefficient of 0.1 at 10 GHz, by a first ...
A. Dehé +5 more
openaire +1 more source
, 2014 Two-dimensional measurements of snowpack properties (stratigraphic layering, density, grain size and temperature) were used as inputs to the multi-layer Helsinki University of Technology (HUT) microwave emission model at a centimeter-scale horizontal ...
Sandells, Melody +7 more
core +1 more source
Global evaluation of fast radiative transfer model coefficients for early meteorological satellite sensors [PDF]
Atmospheric Measurement TechniquesRTTOV (the Radiative Transfer for TOVS code, where TOVS is the TIROS Operational Vertical Sounder) coefficients are evaluated using a large, independent dataset of 25 000 atmospheric model profiles as a robust test of the diverse 83 training profiles ...
B. B. Silveira +3 more
doaj +1 more source
Remote Sensing, 2015 Long-term snow depth/snow water equivalent (SWE) products derived from passive microwave remote sensing data are fundamental for climatological and hydrological studies.
Liyun Dai, Tao Che, Yongjian Ding
doaj +1 more source
Design and implementation of a non-contact microwave level measument instrument
, 2010 Includes abstract.Includes bibliographical references (leaves 104-110).This dissertation describes the design and implementation of a microwave level measurement instrument for sensing the level of a substance inside a tank up to 10 m in height.
Ward, Jonathan Michael
core
Microwave Photonics for Optical Sensors
IEEE Journal of Selected Topics in Quantum Electronics, 2017 [EN] This paper presents a review and discussion of the applications of Microwave Photonic techniques and functionalities to the field of optical fiber sensors. A specific end-to end model for its characterization is presented here for the first time that yields the sensitivity of the different figures of merit in terms of measurand variations ...
Hervás-Peralta, Javier|||0000-0002-8688-2467 +7 more
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Implementation of a herd management system with wireless sensor networks
, 2009 This paper investigates an adaptation of Wireless Sensor Networks (WSNs) to cattle monitoring applications. The proposed solution facilitates the requirement for continuously assessing the condition of individual animals, aggregating and reporting this ...
Stephen, B. +11 more
core
Hyperspectral Microwave Sensors—Advantages and Limitations [PDF]
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Christian D. Kummerow +7 more
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Improving the altimetric rain record from Jason-1 & Jason-2 [PDF]
, 2010 Dual-frequency rain-flagging has long been a standard part of altimetric data analysis, both for quality control of the data and for the study of rain itself, because altimeters can provide a finer spatial sampling of rain than can passive microwave ...
Quartly, G.D.
core +1 more source
Microwave gyroscope?novel rotation sensor
Microwave and Optical Technology Letters, 2000 High performance microwave gyroscope (MG) is theoretically developed for the first time to our knowledge. MG is based on Sagnac effect in microwave ring resonator (RR), where a specially taylored phase shifter (PS) on the basis of surface acoustic waves is inserted. Due to that beat frequency becomes proportional to square (or cubic) root upon rotation
openaire +2 more sources