Results 11 to 20 of about 122,168 (344)

Experimental demonstration of passive microwave pulse amplification via temporal Talbot effect [PDF]

open access: yesScientific Reports, 2023
The temporal Talbot effect is a passive phenomenon that occurs when a periodic signal propagates through a dispersive medium with a quadratic phase response that modulates the output pulse repetition rate based on the input period. As previously proposed,
Vinicius M. Pepino   +2 more
doaj   +2 more sources

NOVEL SNOW DEPTH RETRIEVAL METHOD USING TIME SERIES SSMI PASSIVE MICROWAVE IMAGERY [PDF]

open access: diamondThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager Sounder (SSM/IS) are satellites that work in passive microwave range.
Z. Nikraftar   +2 more
doaj   +2 more sources

Passive Planar Microwave Devices

open access: yesApplied Sciences, 2022
Passive planar circuits play a key role in many RF/microwave applications, such as in wireless communications, medical instrumentation, and remote sensing [...]
Alejandro Javier Martínez-Ros   +1 more
doaj   +5 more sources

Monitoring Protein Denaturation of Egg White Using Passive Microwave Radiometry (MWR) [PDF]

open access: yesDiagnostics, 2022
Passive microwave radiometry (MWR) is a measurement technique based on the detection of passive radiation in the microwave spectrum of different objects.
Igor Goryanin   +3 more
doaj   +2 more sources

Synergistic Evaluation of Passive Microwave and Optical/IR Data for Modelling Vegetation Transmissivity towards Improved Soil Moisture Retrieval [PDF]

open access: yesSensors, 2022
Vegetation cover and soil surface roughness are vital parameters in the soil moisture retrieval algorithms. Due to the high sensitivity of passive microwave and optical observations to Vegetation Water Content (VWC), this study assesses the integration ...
Mina Moradizadeh   +2 more
doaj   +2 more sources

Hybrid Intelligent Nonlinear Optimization for FDA-MIMO Passive Microwave Arrays Radar on Static Platforms [PDF]

open access: yesMicromachines
Microwave, millimeter-wave, and terahertz devices are fundamental to modern 5G/6G communications, automotive imaging radar, and sensing systems. As essential RF front-end elements, passive microwave array components on static platforms remain constrained
Yimeng Zhang   +4 more
doaj   +2 more sources

Passive Microwave Melt Onset Retrieval Based on a Variable Threshold: Assessment in the Canadian Arctic Archipelago

open access: yesRemote Sensing, 2019
The Canadian Arctic Archipelago (CAA) presents unique challenges to the determination of melt onset (MO) using remote sensing data. High spatial resolution data is required to discern melt onset among the islands and narrow waterways of the region ...
Stephen Marshall   +2 more
doaj   +3 more sources

Retrieval of Effective Correlation Length and Snow Water Equivalent from Radar and Passive Microwave Measurements

open access: yesRemote Sensing, 2018
Current methods for retrieving SWE (snow water equivalent) from space rely on passive microwave sensors. Observations are limited by poor spatial resolution, ambiguities related to separation of snow microstructural properties from the total snow mass ...
Juha Lemmetyinen   +9 more
doaj   +3 more sources

On-Chip Microwave Quantum Hall Circulator

open access: yesPhysical Review X, 2017
Circulators are nonreciprocal circuit elements that are integral to technologies including radar systems, microwave communication transceivers, and the readout of quantum information devices.
A. C. Mahoney   +8 more
doaj   +3 more sources

Satellite Microwave Radiometry for the Observation of Land Surfaces: A General Review [PDF]

open access: yesSensors
The development of passive microwave sensors traces back to Robert Dicke’s pioneering experiments in the 1940s. Since then, microwave radiometry has evolved into a key tool for Earth observation, strengthened by data from multiple satellite missions ...
Cristina Vittucci, Matteo Picchiani
doaj   +2 more sources

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