Results 11 to 20 of about 917 (184)

Mixed Compressive Sensing Back-Projection for SAR Focusing on Geocoded Grid

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
This article presents a new scheme called 2-D mixed compressive sensing back-projection (CS-BP-2D), for synthetic aperture radar (SAR) imaging on a geocoded grid, in a single measurement vector frame.
Adrian Focsa   +3 more
doaj   +1 more source

Accurate Analysis of Target Characteristic in Bistatic SAR Images: A Dihedral Corner Reflectors Case

open access: yesSensors, 2017
The dihedral corner reflectors are the basic geometric structure of many targets and are the main contributions of radar cross section (RCS) in the synthetic aperture radar (SAR) images.
Dongyang Ao   +3 more
doaj   +1 more source

Sparse Imaging-Based Clutter Suppression and Refocusing of MTs in Passive Bistatic SAR

open access: yesIEEE Access, 2020
A sparse-imaging-based methodology for the clutter suppression and refocusing of multiple slow-moving targets (MT) in passive bistatic synthetic aperture radar (SAR) is proposed in this paper.
Xin Wang, Xiaozong Song
doaj   +1 more source

Focusing Bistatic FMCW SAR Signal by Range Migration Algorithm Based on Fresnel Approximation

open access: yesSensors, 2015
Frequency modulated continuous wave (FMCW) technique has recently been employed by synthetic aperture radar (SAR) to decrease the radar cost and volume. However, the operation range is limited by the direct energy leakage from the transmitting channel to
Yake Li, Siu O’Young
doaj   +1 more source

Bistatic 3D SAR for wall parameter extraction in cluttered environments

open access: yesElectronics Letters, 2021
Through‐wall radar is an emergent technology rooted in urban surveillance, a key component being synthetic aperture radar (SAR). Accurate through‐wall SAR relies on knowledge of the refractive index and thickness of any obscuring walls.
James Elgy, Daniel Andre, Mark Finnis
doaj   +1 more source

Performance Evaluation of Spaceborne Bistatic SAR Systems [PDF]

open access: yesJournal of Electromagnetic Engineering and Science
In this paper, the performances of spaceborne bistatic synthetic aperture radar (SAR) systems are evaluated and compared with those of the conventional monostatic SAR system.
Suk-Jin Kim   +5 more
doaj   +1 more source

Unambiguous signal reconstruction for GEO-LEO bistatic SAR with azimuth multichannel

open access: yesThe Journal of Engineering, 2019
Spaceborne bistatic multichannel synthetic aperture radar (MC-SAR) system employed inclined geosynchronous Earth orbit (GEO) transmitter and low-Earth-orbit (LEO) receiver can provide fine spatial resolution and a vast area of surveillance, which ...
Yuekun Wang   +4 more
doaj   +1 more source

Performance Comparison between Monostatic and Bistatic Staring Spotlight Modes Based on Several Scenarios [PDF]

open access: yesJournal of Electromagnetic Engineering and Science
This paper analyzes the performance of the bistatic staring spotlight mode in a low-orbit satellite environment and then compares it with the performance of the monostatic staring spotlight mode. The staring spotlight mode provides high-resolution images
Seong Joo Maeng   +5 more
doaj   +1 more source

A SIFT Algorithm for Bistatic SAR Imaging in a Spaceborne Constant-offset Configuration (in English) [PDF]

open access: yesLeida xuebao, 2013
This paper focuses on the problem of the space-variance of the range-cell migration term for bistatic Synthetic Aperture Radar (SAR) and proposes a Scaled Inverse Fourier Transform (SIFT)-based imaging algorithm for the constant-offset configuration of ...
Chen Shi-chao   +3 more
doaj   +1 more source

Indoor Experiments of Bistatic/Multistatic GB-SAR with One-Stationary and One-Moving Antennae

open access: yesRemote Sensing, 2021
Ground-based synthetic aperture radar (GB-SAR) is a useful tool to simulate advanced SAR systems with its flexibility on RF system and SAR configuration.
Hoonyol Lee, Jihyun Moon
doaj   +1 more source

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