Three-dimensional imaging for UWB though-the-wall radar

Zhao, Yuchen; Lu, Biying; Sun, Xiangyi

doi:10.1109/icist.2013.6747822

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…where δ is the scattering coefficient of the single point target, and τ i is the propagation delay [18]. Chaos waveforms share the same statistically-independent feature with random noise, but they are easier to be generated and controlled [12].…”

Section: Microwave Gi Reconstruction Algorithmmentioning

confidence: 99%

Microwave Surveillance Based on Ghost Imaging and Distributed Antennas

Wang¹,

Lin²

2016

Antennas Wirel. Propag. Lett.

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Abstract-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 performance with low system complexity has been demonstrated. The theoretical analysis and effectiveness of the proposed microwave surveillance method are also validated via simulations.Index Terms-Microwave surveillance, microwave ghost imaging, distributed antennas, chaotic modulated signals.

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Section: Microwave Gi Reconstruction Algorithmmentioning

confidence: 99%

Microwave Surveillance Based on Ghost Imaging and Distributed Antennas

Wang¹,

Lin²

2016

Antennas Wirel. Propag. Lett.

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“…where, ρ is the attenuation caused by the uniform wall and tdelay is the propagation delay including the signal flying time inside and outside the wall [11]. Note that equation (3) indicates that the wall only introduces attenuation and the time delay into the detecting signal.…”

Section: Possibility Of Target Image Reconstruction Of Twgimentioning

confidence: 99%

“…Given the precise wall thickness and dielectric constant, the traveling distances of the detecting signal inside and outside the wall can be accurately computed. Based on the traveling distances, the propagation delay τij can be calculated [11].…”

Section: Single Point Target Modelmentioning

confidence: 99%

High-resolution through-wall ghost imaging algorithm using chaotic modulated signal

Wang

Lin

2015

2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

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In this paper, a novel high-resolution through-wall ghost imaging (TWGI) algorithm is proposed for detecting targets hidden behind walls. By using chaotic modulated signals, ghost imaging (GI) derived from optical image reconstruction applications is introduced and applied in through-wall imaging (TWI) scenarios to achieve high-resolution imaging capability. The scattering coefficients of the target imaging plane are treated as levels of brightness in the proposed algorithm, whose spatial distribution can be retrieved by processing the estimated electromagnetic (EM) field at the target imaging plane with the reflected signal captured by a single receiving antenna. Simulation results are presented to show the effectiveness and high quality of reconstruction results by using the proposed TWGI algorithm.

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“…However, the method is only applicable to small objects, such as concealed weapons, and the experimental verification was performed in an extremely controlled environment, replacing the human target with a conductive dummy. Some basic 3D experiments with real human targets are presented in [13]. However, the experiment was performed with very limited bandwidth of 0.5 to 1 GHz in a controlled chamber.…”

Section: Introductionmentioning

confidence: 99%

Development and experimental evaluation of a 3D ultra-wideband localization system

Muqaibel¹

2017

Turk J Elec Eng & Comp Sci

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Abstract:In this paper, an ultra-wideband (UWB) synthetic aperture radar system that can perform 3D localization of objects is implemented. The system consists of a moving platform that positions two UWB horn antennas. The 3D image construction is performed using the delay-sum beamforming algorithm. Experiments were performed using two data acquisition techniques, namely, background measurements technique and change detection. The former can be used for imaging stationary targets while the latter is applicable for moving objects. At different distances and orientations from the antennas, various targets were imaged. Through-wall imaging was also considered. The system is augmented with a graphical user interface that allows the user to change input parameters and display a 3D image of the target along with plots of frequency and time analysis at different antenna positions. The results demonstrate the system applicability for many indoor applications.

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Three-dimensional imaging for UWB though-the-wall radar

Cited by 4 publications

References 5 publications

Microwave Surveillance Based on Ghost Imaging and Distributed Antennas

Microwave Surveillance Based on Ghost Imaging and Distributed Antennas

High-resolution through-wall ghost imaging algorithm using chaotic modulated signal

Development and experimental evaluation of a 3D ultra-wideband localization system

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