Results 31 to 40 of about 187,363 (292)

Analysis and Compensation Method Research on the Channel Leakage Error for Three-baseline MMWInSAR

open access: yesLeida 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

open access: yesLeida 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

Non-Invasive Imaging Method of Microwave Near Field Based on Solid State Quantum Sensing

open access: yes, 2018
In this paper, we propose a non-invasive imaging method of microwave near field using a diamond containing nitrogen-vacancy centers. We applied synchronous pulsed sequence combined with charge coupled device camera to measure the amplitude of the ...
Dong, Yue   +5 more
core   +1 more source

The Planck Low Frequency Instrument [PDF]

open access: yes, 1999
The Low Frequency Instrument (LFI) of the "Planck Surveyor" ESA mission will perform high-resolution imaging of the Cosmic Microwave Background anisotropies at four frequencies in the 30-100 GHz range.
A. Mennella   +8 more
core   +2 more sources

Microwave Vision Three-dimensional SAR Experimental System and Full-polarimetric Data Processing Method

open access: yesLeida xuebao
Three-Dimensional (3D) Synthetic Aperture Radar (SAR) holds great potential for applications in fields such as mapping and disaster management, making it an important research focus in SAR technology. To advance the application and development of 3D SAR,
Xiaolan QIU   +9 more
doaj   +1 more source

Microwave Surveillance based on Ghost Imaging and Distributed Antennas

open access: yes, 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

3-D Microwave Imaging for Breast Cancer [PDF]

open access: yes, 2012
We introduce a novel microwave imaging technique for breast cancer detection. Our approach provides a one-pass inverse image solution, which is completely new and unprecedented, unrelated to tomography or radar-based algorithms, and unburdened by the ...
Cheng, G. G., Grzesik, J., Zhu, Y.
core   +2 more sources

Atomic resolution imaging at 2.5 GHz using near-field microwave microscopy

open access: yes, 2010
Atomic resolution imaging is demonstrated using a hybrid scanning tunneling/near-field microwave microscope (microwave-STM). The microwave channels of the microscope correspond to the resonant frequency and quality factor of a coaxial microwave resonator,
Lee, Jonghee   +4 more
core   +1 more source

Solar Activity Studies using Microwave Imaging Observations [PDF]

open access: yes, 2016
We report on the status of solar cycle 24 based on polar prominence eruptions (PEs) and microwave brightness enhancement (MBE) information obtained by the Nobeyama radioheliograph.
Gopalswamy, Nat
core   +3 more sources

Restoration of Multichannel Microwave Radiometric Images [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 1985
A constrained iterative image restoration method is applied to multichannel diffraction-limited imagery. This method is based on the Gerchberg-Papoulis algorithm utilizing incomplete information and partial constraints. The procedure is described using the orthogonal projection operators which project onto two prescribed subspaces iteratively.
Roland T. Chin   +2 more
openaire   +2 more sources

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