Results 31 to 40 of about 2,099,062 (301)

Microwave-induced thermoelastic tissue imaging.

open access: yes, 1988
Microwave-induced thermoelastic tissue ...
Karen Hing-Sheung. Chan (7974146)
core   +6 more sources

Computational polarimetric microwave imaging

open access: yesOptics Express, 2017
We propose a polarimetric microwave imaging technique that exploits recent advances in computational imaging. We utilize a frequency-diverse cavity-backed metasurface, allowing us to demonstrate high-resolution polarimetric imaging using a single transceiver and frequency sweep over the operational microwave bandwidth. The frequency-diverse metasurface
Fromenteze, Thomas   +5 more
openaire   +4 more sources

Multifeature Fusion Neural Network for Oceanic Phenomena Detection in SAR Images

open access: yesSensors, 2019
Oceanic phenomena detection in synthetic aperture radar (SAR) images is important in the fields of fishery, military, and oceanography. The traditional detection methods of oceanic phenomena in SAR images are based on handcrafted features and detection ...
Zhuofan Yan   +5 more
doaj   +1 more source

Microwave Imaging and Emerging Applications [PDF]

open access: yesInternational Journal of Biomedical Imaging, 2012
Active microwave imaging for biomedical has been proposed, studied, and implemented to varying degrees by a plethora of worldwide institutions for the last 30 years. Much of the interest has been based on the fact that tissue dielectric properties embody important information about physiological state and function.
openaire   +4 more sources

Scattering-Point-Guided RPN for Oriented Ship Detection in SAR Images

open access: yesRemote Sensing, 2023
Ship detection in synthetic aperture radar (SAR) images has attracted widespread attention due to its significance and challenges. In recent years, numerous detectors based on deep learning have achieved good performance in the field of SAR ship ...
Yipeng Zhang   +3 more
doaj   +1 more source

Airborne SAR Imaging Algorithm for Ocean Waves Based on Optimum Focus Setting

open access: yesRemote Sensing, 2019
Ocean waves are the richest texture on the sea surface, from which valuable information can be inversed. In general, the Synthetic Aperture Radar (SAR) images of surface waves will inevitably be distorted due to the intricate motion of surface waves ...
Xiangfei Wei   +4 more
doaj   +1 more source

Towards microwave imaging of cells [PDF]

open access: yesLab on a Chip, 2018
We have simultaneously used the first two modes of a microwave resonant sensor integrated with microfluidics to size and locate droplets and cells. Higher-order modes can yield further spatial details of cells.
Mehmet Kelleci   +4 more
openaire   +3 more sources

Local Azimuth Ambiguity-to-Signal Ratio Estimation Method Based on the Doppler Power Spectrum in SAR Images

open access: yesRemote Sensing, 2019
In synthetic aperture radar (SAR) images, azimuth ambiguity is one of the important factors that affect image quality. Generally, the azimuth ambiguity-to-signal ratio (AASR) is a measure of the azimuth ambiguity of SAR images.
Hui Meng   +4 more
doaj   +1 more source

Reconfigurable integrated structures with functions of Fabry–Perot antenna and wideband liquid absorber for radar system stealth

open access: yesScientific Reports, 2023
This paper proposes a functionally reconfigurable integrated structure of a Fabry–Perot (FP) antenna and wideband liquid absorber. First, a two-layer partial reflecting surface (PRS) has been designed.
Yukun Zou   +4 more
doaj   +1 more source

Investigation of resolution limits for indirect microwave holographic imaging [PDF]

open access: yes, 2012
This work describes how indirect holography which has previously been applied to the determination of antenna radiation patterns can be adapted for the imaging of passive objects.
Yurduseven, Okan   +6 more
core   +1 more source

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