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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

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

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

COMPARISON OF MULTI-IMAGES DEEP LEARNING SUPER RESOLUTION FOR PASSIVE MICROWAVE IMAGES OF ARCTIC SEA ICE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
The observation of Arctic sea ice is of great significance to monitoring of the polar environment, research on global climate change and application of Arctic navigation.
X. Shen   +7 more
doaj   +1 more source

Characterizing natural variability in complex hydrological systems using passive microwave-based climate data records: a case study for the Okavango Delta [PDF]

open access: yesHydrology and Earth System Sciences, 2022
The Okavango River system in southern Africa is known for its strong interannual variability of hydrological conditions. Here, we present how this is exposed in surface soil moisture, land surface temperature, and vegetation optical depth as derived from
R. van der Schalie   +5 more
doaj   +1 more source

Research progress on retrieval algorithms of cloud liquid water over ocean based on remote sensing by satellite-borne passive microwave instruments

open access: yes暴雨灾害, 2021
Space-borne visible and infrared instruments can only observe the information of the cloud top or within a limited depth below the top due to their lack of ability to penetrate clouds, while space-borne passive microwave instruments can obtain cloud body
Yunfei FU
doaj   +1 more source

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   +1 more source

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