Results 101 to 110 of about 18,185 (247)

Three dimensional scattering center imaging techniques [PDF]

open access: yes
Two methods to image scattering centers in 3-D are presented. The first method uses 2-D images generated from Inverse Synthetic Aperture Radar (ISAR) measurements taken by two vertically offset antennas.
Burnside, W. D., Younger, P. R.
core   +1 more source

Efficient Raw Signal Generation Based on Equivalent Scatterer and Subaperture Processing for SAR with Arbitrary Motion [PDF]

open access: yes, 2014
An efficient SAR raw signal generation method based on equivalent scatterer and subaperture processing is proposed in this paper. It considers the radar’s motion track, which can obtain the precise raw signal for the real SAR. First, the imaging geometry
An, D.X.   +3 more
core   +1 more source

ISAR Sparse Aperture Imaging Algorithm for Large Size Target

open access: yesLeida xuebao, 2012
A novel algorithm for larger size target imaging in sparse aperture is presented in this paper for Inverse Synthetic Aperture Radar (ISAR). In the proposed method, azimuth compressing is done in the range frequency domain to avoid Migration Through Range
Zhong Li-hua   +3 more
doaj   +1 more source

Complex-valued interferometric inverse synthetic aperture radar image compression base on compressed sensing

open access: yesThe Journal of Engineering, 2014
Complex-valued interferometric inverse synthetic aperture radar (InISAR) image compression is discussed in this study. The target scene has its continuity and is compressible.
Liechen Li   +3 more
doaj   +1 more source

Two Dimensional Array Imaging with Beam Steered Data

open access: yes, 2013
This paper discusses different approaches used for millimeter wave imaging of two-dimensional objects. Imaging of a two dimensional object requires reflected wave data to be collected across two distinct dimensions.
Patole, Sujeet, Torlak, Murat
core   +1 more source

Three-dimensional reconstruction for space targets with multistatic inverse synthetic aperture radar systems

open access: yesEURASIP Journal on Advances in Signal Processing, 2019
In this paper, a three-dimensional (3D) reconstruction algorithm is proposed for space targets with multistatic inverse synthetic aperture radar (ISAR) systems.
Yue Zhao   +4 more
doaj   +1 more source

2-D Coherence Factor for Sidelobe and Ghost Suppressions in Radar Imaging [PDF]

open access: yes, 1956
The coherence factor (CF) is defined as the ratio of coherent power to incoherent power received by the radar aperture. The incoherent power is computed by the multi-antenna receiver based on only the spatial variable.
Li, Shiyong   +4 more
core   +3 more sources

An Extended Virtual Aperture Imaging Model for Through-the-wall Sensing and Its Environmental Parameters Estimation [PDF]

open access: yes, 2014
Through-the-wall imaging (TWI) radar has been given increasing attention in recent years. However, prior knowledge about environmental parameters, such as wall thickness and dielectric constant, and the standoff distance between an array and a wall, is ...
Hu, Jun   +4 more
core   +1 more source

Broadband circular interferometric millimetre-wave ISAR for threat detection [PDF]

open access: yesAdvances in Radio Science, 2007
To detect threats on a person's body surface the application of millimetre-waves is possible. In order to get a view of the person from all sides either the person has to be rotated standing on a turntable (Inverse Synthetic Aperture Radar, ISAR)
S. Bertl, A. Dallinger, J. Detlefsen
doaj  

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