Results 41 to 50 of about 6,696,337 (373)
Imaging of microwave fields using ultracold atoms [PDF]
, 2010 We report a technique that uses clouds of ultracold atoms as sensitive, tunable, and non-invasive probes for microwave field imaging with micrometer spatial resolution.
Böhm C. +5 more
core +2 more sources
Remote 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
Microwave Imaging and Emerging Applications [PDF]
International 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 +3 more sources
Scientific 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
Processing and initial comparison of PSR data from CAMEX-3 to SSM/I and TMI data [PDF]
, 1999 A multiband Polarimetric Scanning Radiometer (PSR) was integrated on a NASA DC-8 aircraft and flown from August through September of 1998 during the third Convection and Moisture Experiment (CAMEX-3).
Corbella Sanahuja, Ignasi +6 more
core +1 more source
Analysis and Compensation Method Research on the Channel Leakage Error for Three-baseline MMWInSAR
Leida xuebao, 2013 In this paper, modeling of the channel leakage error of a three-baseline MMWInSAR (MilliMeter Wave Interferometric Synthetic Aperture Radar) is analyzed, and the mathematical expression of the error’s parameters and interference phase error is deduced ...
Qiao Ming +3 more
doaj +1 more source
Passive Radar Imaging of Moving Targets Using WiFi Signals
Leida xuebao, 2015 In recent years, the wireless local networks are constructed rapidly and their coverage greatly increase. The passive radar imaging of moving targets using WiFi signals is studied in this paper, which may lead to wider applications of passive radars ...
Zhuang Xu-sheng +3 more
doaj +1 more source
Microwave Surveillance based on Ghost Imaging and Distributed Antennas
, 2015 In this letter, we proposed a ghost imaging (GI) and distributed antennas based microwave surveillance scheme. By analyzing its imaging resolution and sampling requirement, the potential of employing microwave GI to achieve high-quality surveillance ...
Lin, Zihuai, Wang, Xiaopeng
core +1 more source
Scientific Reports, 2019 Globally, breast cancer is a major reason for female mortality. Due to the limitations of current clinical imaging, the researchers are encouraged to explore alternative and complementary tools to available techniques to detect the breast tumor in an ...
Mohammad Tausiful Islam +4 more
semanticscholar +1 more source
Implementation and Characterization of a Two-Dimensional Printed Circuit Dynamic Metasurface Aperture for Computational Microwave Imaging [PDF]
IEEE Transactions on Antennas and Propagation, 2019 We present the design, fabrication, and experimental characterization of a 2-D, dynamically tuned, metasurface aperture, emphasizing its potential performance in computational imaging applications.
T. Sleasman +5 more
semanticscholar +1 more source