Results 71 to 80 of about 1,803 (190)

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

Electronics 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, Soyoon Park, Youngjae Choi, Seungeui Lee, Youngseok Bae, Seongwook Lee   +5 more
wiley   +1 more source

Sparse Array Configuration Optimization Based on Target Priors in Distributed ISAR Imaging

Electronics Letters, Volume 61, Issue 1, January/December 2025.
In this letter, we consider the sparse array configuration optimization problem for distributed inverse synthetic aperture radar (ISAR) imaging of long‐range targets, aiming to suppress the strong grating lobes caused by sparse sampling. Particularly, we propose a distributed ISAR configuration optimization method, which constructs an equivalent ...
Siyu Zhao, Guangbin Zhang, Yan Wang
wiley   +1 more source

GigaRad – a multi-purpose high-resolution ground-based radar system [PDF]

, 2014
Recently DLR has developed and constructed a new experimental radar instrument for various applications like radar signature collection, SAR/ISAR imaging, motion detection, tracking, etc., where high performance and high flexibility have been the key ...
Anger, Simon, Iff, Sebastian, Jirousek, Matthias, Peichl, Markus   +3 more
core  

An Efficient ISAR Imaging Method for Multiple Targets [PDF]

, 2019
This paper proposes an efficient method to obtain TSAR images of multiple targets flying in formation. The proposed method improves the coarse alignment and segmentation of the existing method.
Joo-Ho Jung, Kim, KT, Sang-Hong Park, Si-Ho Kim   +3 more
core   +1 more source

Hybrid polarimetry inverse synthetic aperture radar

IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
The CTLR hybrid‐pol ISAR offers an efficient solution for non‐cooperative target applications, striking an optimal balance between conventional single‐pol ISAR and the widely used full‐pol ISAR. This approach is particularly advantageous for compact radar systems, such as those used in drones and small ground‐radar setups, where it could prove to be a ...
Ajeet Kumar, Elisa Giusti, Marco Martorella   +2 more
wiley   +1 more source

3-D High-Resolution ISAR Imaging for Noncooperative Air Targets

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This article uses the inverse synthetic aperture radar (ISAR) imaging method to present real-world tests on 3-D radar imaging of noncooperative air targets. Initially, the fundamentals of 3-D ISAR are introduced.
Marcin Kamil Baczyk, Piotr Samczynski, Jedrzej Drozdowicz, Maciej Wielgo, Jakub Sobolewski, Marek Ciesielski, Jakub Julczyk, Krzysztof Stasiak, Grzegorz Pietrzykowski, Karol Abratkiewicz, Maciej Soszka   +10 more
doaj   +1 more source

Logarithmic Laplacian Prior Based Bayesian Inverse Synthetic Aperture Radar Imaging

Sensors, 2016
This paper presents a novel Inverse Synthetic Aperture Radar Imaging (ISAR) algorithm based on a new sparse prior, known as the logarithmic Laplacian prior.
Shuanghui Zhang, Yongxiang Liu, Xiang Li, Guoan Bi   +3 more
doaj   +1 more source

Quasi-Coherent Noise Jamming to LFM Radar Based on Pseudo-random Sequence Phase-modulation [PDF]

, 2015
A novel quasi-coherent noise jamming method is proposed against linear frequency modulation (LFM) signal and pulse compression radar. Based on the structure of digital radio frequency memory (DRFM), the jamming signal is acquired by the pseudo-random ...
Pan, Y. J., Tai, N., Yuan, N. C.
core   +2 more sources

Characterisation of Resident Space Objects and Synchronisation Error Compensation in Multistatic Interferometric Inverse Synthetic Aperture Radar Imaging

IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
This article presents a study on interferometric inverse synthetic aperture radar (ISAR) for three‐dimensional imaging and rotational velocity estimation. The study focuses on synchronisation error compensation in a multistatic setup with three ground‐based radars and non‐orthogonal baselines.
Manjunath Thindlu Rudrappa, Martin Käske, Marcus Albrecht, Peter Knott   +3 more
wiley   +1 more source

Super-Resolution Time of Arrival Estimation Using Random Resampling in Compressed Sensing [PDF]

, 2018
There is a strong demand for super-resolution time of arrival (TOA) estimation techniques for radar applications that can that can exceed the theoretical limits on range resolution set by frequency bandwidth.
Fang SHANG, Masanari NOTO, Shouhei KIDERA, Tetsuo KIRIMOTO   +3 more
core   +2 more sources