Results 41 to 50 of about 2,086,551 (203)

Analytic inversion in synthetic aperture radar. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1994
A method of processing synthetic aperture radar signals that avoids some of the approximations currently in use that appear to be responsible for severe phase distortions is described. As a practical matter, this method requires N3 numerical operations, as opposed to the N2 ln N currently the case, but N3 is now easily managed, for N in the range of ...
openaire   +2 more sources

Classification of Automotive Targets Using Inverse Synthetic Aperture Radar Images [PDF]

open access: yesIEEE Transactions on Intelligent Vehicles, 2022
We present a framework for simulating realistic inverse synthetic aperture radar images of automotive targets at millimeter wave frequencies. The model incorporates radar scattering phenomenology of commonly found vehicles along with range-Doppler based clutter and receiver noise. These images provide insights into the physical dimensions of the target,
Neeraj Pandey, Shobha Sundar Ram
openaire   +3 more sources

Sparse aperture wide-angle inverse synthetic aperture radar imaging based on compressive sensing

open access: yesThe Journal of Engineering, 2019
In high-resolution inverse synthetic aperture radar (ISAR) imaging, if the authors enlarge observation angle, range migration would appear and that can cause defocus problem.
Hou Yingni, Wang Xia
doaj   +1 more source

Ship Target Imaging in Airborne SAR System Based on Automatic Image Segmentation and ISAR Technique

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The airborne synthetic aperture radar (SAR) image of ship target will be blurred for the complex motion of the target, which will influence the performance of feature extraction and target classification.
Rui Cao, Yong Wang, Bin Zhao, Xiaofei Lu
doaj   +1 more source

Mathematical Model for a Radar Signal Reflected from Drone Propellers as Applied to the Method of Inverse Synthetic Aperture Radar in Bistatic Radar

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2023
Introduction. The distinction of targets located in the same spatial resolution cell of a radar system includes the determination of the number of targets and their recognition.
E. C. Plotnitskaya   +2 more
doaj   +1 more source

Inverse synthetic aperture radar imaging using complex-value deep neural network

open access: yesThe Journal of Engineering, 2019
As compared with traditional ISAR imaging methods, the compressive sensing (CS)-based imaging methods can obtain high-quality images using much less under-sampled data.
ChangYu Hu   +4 more
doaj   +1 more source

Autonomous Navigation Airborne Forward-Looking SAR High Precision Imaging with Combination of Pseudo-Polar Formatting and Overlapped Sub-Aperture Algorithm

open access: yesRemote Sensing, 2013
Autonomous navigation airborne forward-looking synthetic aperture radar (SAR) observes the anterior inferior wide area with a short cross-track dimensional linear array as azimuth aperture.
Xueming Peng   +4 more
doaj   +1 more source

Quantitative synthetic aperture radar inversion

open access: yesCoRR
Submitted to IEEE Transactions on Antennas and Propagation, keywords: SAR, imaging, multiple scattering ...
Liliana Borcea   +3 more
openaire   +2 more sources

A bistatic inverse synthetic aperture radar sparse aperture high‐resolution imaging algorithm with migration compensation

open access: yesIET Radar, Sonar & Navigation, 2022
In recent years, bistatic inverse synthetic aperture radar (Bi‐ISAR) imaging of targets with sparse aperture has attracted more and more attention. One of the critical issues is that the Bi‐ISAR imaging of some large targets with rotational motions is ...
Hanshen Zhu   +6 more
doaj   +1 more source

Review of High-resolution Imaging Techniques of Wideband Inverse Synthetic Aperture Radar

open access: yesLeida xuebao, 2020
At present, the emphasis of Inverse Synthetic Aperture Radar (ISAR) systems on the characteristics of high carrier frequency, wide bandwidth, multi-polarization capability, distribution, and networking has led to the development and progress of ISAR ...
Biao TIAN   +5 more
doaj   +1 more source

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