Results 51 to 60 of about 2,276 (208)

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

open access: yes, 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

open access: yesIET 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

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

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

Joint sparsity-driven inversion and model error correction for radar imaging [PDF]

open access: yes, 2009
Solution of inverse problems in imaging requires the use of a mathematical model of the observation process. However such models often involve errors and uncertainties themselves. The application of interest in this paper is synthetic aperture radar (SAR)
Cetin, Mujdat   +3 more
core   +2 more sources

An ISAR target motion estimation algorithm based on a differential semblance criterion

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
This study presents a novel approach for improving rotational motion estimation in multistatic Inverse Synthetic Aperture Radar (ISAR) imaging through a Differential Semblance Optimization (DSO) criterion. By reducing discrepancies across images from multiple transmitter–receiver pairs, our method enables precise yaw rotation estimation and produces ...
D. P. Huxley   +2 more
wiley   +1 more source

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

open access: yes, 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  

Efficient range alignment algorithm for real-time range-Doppler algorithm [PDF]

open access: yes, 2017
When deriving a range-Doppler image or a time-frequency image of a fast-maneuvering target at long range, existing range alignment methods yield poor results due to the large numbers of range profiles (RPs) and range bins that are required for this task.
Bae, J.-H.   +4 more
core   +1 more source

Joint Noise Suppression and Resolution Enhancement of ISAR Images Using Integrated Neural Networks

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
This study proposes an integrated neural network for simultaneous noise suppression and resolution enhancement in inverse synthetic aperture radar (ISAR) images. The proposed approach sequentially combines separate generative models for each task and optimizes them using a joint learning strategy.
Seonmin Cho   +5 more
wiley   +1 more source

RCS computation and data analysis of target base FEKO

open access: yesDianzi Jishu Yingyong, 2018
Radar engineers often have special requirement for the RCS data computation and analysis of target. The investigation of target delectability can been obtained by 1-dimensional probability density functions(PDF) and 2-dimensional RCS intensity.
Qin Qin   +3 more
doaj   +1 more source

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