Results 41 to 50 of about 2,357 (209)

Target Oriented High Resolution SAR Image Formation via Semantic Information Guided Regularizations

, 2017
Sparsity-regularized synthetic aperture radar (SAR) imaging framework has shown its remarkable performance to generate a feature enhanced high resolution image, in which a sparsity-inducing regularizer is involved by exploiting the sparsity priors of ...
Hou, Biao, Jiao, Licheng, Wen, Zaidao, Wu, Qian   +3 more
core   +1 more source

A Novel Structural Assessment Technique to Prevent Damaged FRP-Wrapped Concrete Bridge Piers from Collapse [PDF]

, 2009
Repairing deteriorated concrete bridge piers using externally wrapped fiber reinforced polymer (FRP) composites have been proven as an effective approach. This technique has also been applied to low-rise building structures.
A Tommaso Di, AJ Kinloch, AR Hutchinson, B Akuthota, C Au, C Au, CKY Leung, H Toutanji, III Hamilton HR, J Li, JG Teng, MA Starnes, MF Green, MJ Chajes, MK Antoon, MQ Feng, O Buyukozturk, O Buyukozturk, O Buyukozturk, R Zoughi, RC Vekey De, SA Sheikh, ST Smith, VM Karbhari, VM Malhotra, W Hillger, YJ Kim   +26 more
core   +1 more source

Open‐Set Recognition of Radar One‐Dimensional Range Profiles Based on Attention Mechanism and Multi‐Task Joint Training

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
To address the issues in radar automatic target recognition (RATR) based on high‐resolution range profiles (HRRP)—specifically, the inability of closed‐set methods to handle unknown categories and the limitation of conventional open‐set methods that can only reject unknown categories without further subdivision—this paper proposes the MHA–CoST open‐set
Bowen Bai, Long Xue, Mingyao Xue, Bailiang Pu   +3 more
wiley   +1 more source

A Space‐Time‐Frequency Adaptive Processing Method for Dual‐Band Airborne Radar in Complex Electromagnetic Environments

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
In this paper, we first establish the dual‐band airborne radar wideband echo signal model and propose a space‐time‐frequency adaptive processing method based on it. Firstly, in the passive mode, the poles of the dual band are estimated by the matrix pencil method, and the incoherent components are estimated through the phase relationship between the ...
Ming Hou, Wenchong Xie, Wei Chen, Yuanyi Xiong, Chenran Gao, Anle Wang, Yongliang Wang   +6 more
wiley   +1 more source

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

The 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

Performance limits for maritime Inverse Synthetic Aperture Radar (ISAR) [PDF]

, 2013
The performance of an Inverse Synthetic Aperture Radar (ISAR) system depends on a variety of factors, many which are interdependent in some manner. In this report we specifically examine ISAR as applied to maritime targets (e.g. ships). It is often difficult to get your arms around' the problem of ascertaining achievable performance limits, and yet ...
openaire   +1 more source

Cross‐Range Scaling for Spaceborne Radar Image of Space Target via Novel Method of Rotational Motion Estimation With Analytical Solution

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
In this article, a novel rotational motion estimation method via analytical solution is proposed and has been successfully applied to the cross‐range scaling. The proposed method can achieve high estimation accuracy without relying on iterative search procedures, which typically occur in existing methods and often result in high computational cost or ...
Rui Cao, Pingping Lu, Yong Wang
wiley   +1 more source

Characterisation and Classification of Resident Space Objects Using Radar Networks

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper describes a simulated environment for generating Inverse Synthetic Aperture Radar (ISAR) images and interferometric point clouds using a three‐receiver radar configuration, along with the creation of extensive datasets to train and evaluate deep learning models under varying Signal‐to‐Noise Ratio (SNR) conditions. Findings show that modified
Manjunath Thindlu Rudrappa, Marcus Albrecht, Peter Knott   +2 more
wiley   +1 more source

Persepsi pelajar sarjana muda kejuruteraan elektrik terhadap program latihan industri, Kolej Universiti Teknologi Tun Hussein Onn [PDF]

, 2002
Kajian ini dijalankan bertujuan untuk mengetahui persepsi Pelajar Sarjana Muda Kejuruteraan Elektrik Terhadap Program Latihan Industri, KUiTTHO berdasarkan kepada 4 faktor iaitu kesesuaian penempatan program latihan industri, kesesuaian pendedahan ...
Mohamad Nur, Hanirah
core  

A Method for Extracting and Imaging Weak Second‐Harmonic Signals in Harmonic Radar

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
Harmonic radar, as an emerging sensing technology, enables high‐sensitivity target detection and localization in complex environments by exploiting the nonlinear scattering characteristics of targets, such as the harmonic responses of electronic devices. Compared with conventional radar systems, it offers strong clutter suppression because most natural
Minglin He, Chong Song, Chenhao Zhao, Lin Yi, Ruihua Fan, Bingnan Wang   +5 more
wiley   +1 more source