Results 11 to 20 of about 2,171 (218)

3D inverse synthetic aperture radar image quality improvement using sparse signal representation

open access: goldIET Radar, Sonar & Navigation, 2023
Generalisation of one‐dimensional dictionary learning (1DDL) algorithms to Multidimensional (MD) mode and its utilisation in MD data applications, increases the speed and reduces the computational complexity.
Ali Mehrpooya   +4 more
doaj   +2 more sources

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

open access: goldEURASIP 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   +2 more sources

Analysis of Constraints on the Remote Application of Inverse Synthetic Aperture Laser Radar [PDF]

open access: yesSensors
In order to achieve the remote application of inverse synthetic aperture laser radar for high resolution spatial situational awareness, it is essential to analyze the main factors that restrict its remote application.
Rui Gao, Lei Dong
doaj   +2 more sources

Inverse Airborne Optical Sectioning

open access: yesDrones, 2022
We present Inverse Airborne Optical Sectioning (IAOS), an optical analogy to Inverse Synthetic Aperture Radar (ISAR). Moving targets, such as walking people, that are heavily occluded by vegetation can be made visible and tracked with a stationary ...
Rakesh John Amala Arokia Nathan   +2 more
doaj   +1 more source

Moving Target Refocusing With the FMCW SAR System MIRANDA-35

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Inverse synthetic aperture radar is a commonly adopted technique for producing high-resolution images of moving targets. This article investigates the imaging capabilities of high-frequency and high-bandwidth systems by means of two distinct experiments.
Emiliano Casalini   +2 more
doaj   +1 more source

Inverse Synthetic Aperture Radar Sparse Imaging Exploiting the Group Dictionary Learning

open access: yesRemote Sensing, 2021
Sparse imaging relies on sparse representations of the target scenes to be imaged. Predefined dictionaries have long been used to transform radar target scenes into sparse domains, but the performance is limited by the artificially designed or existing ...
Changyu Hu   +3 more
doaj   +1 more source

A Sparse Bayesian Learning Approach for Vortex Electromagnetic Wave Three-dimensional Imaging in the Terahertz Band

open access: yesLeida xuebao, 2021
In the Inverse Synthetic Aperture Radar (ISAR) imaging system, when the terahertz radar transmits the wide bandwidth signal and vortex electromagnetic wave, Three-Dimensional (3D) high-resolution imaging can be achieved through information decoupling ...
Yanwen JIANG, Hongqi FAN, Shuangxun LI
doaj   +1 more source

Photonics-Based High-Resolution 3D Inverse Synthetic Aperture Radar Imaging

open access: yesIEEE Access, 2019
A photonics-based radar for high-resolution 3D microwave imaging is proposed and demonstrated, in which high range resolution is achieved by employing a wideband linearly frequency modulated signal, and high cross-range resolution in both azimuth and ...
Xingwei Ye   +4 more
doaj   +1 more source

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