Results 51 to 60 of about 3,736,067 (190)
Performance Analysis on ISAR Imaging of Space Targets
Leida xuebao, 2017 Usually, in traditional Inverse Synthetic Aperture Radar (ISAR) systems design and mode selection for space satellite targets, coherent integration gain in azimuth direction hardly can be analyzed, which depends on target’s motion.
Zhou Yejian +3 more
doaj +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 +2 more
wiley +1 more source
A Metalearning-based Sparse Aperture ISAR Imaging Method
Leida xuebao, 2023 Sparse Aperture-Inverse Synthetic Aperture Radar (SA-ISAR) imaging methods aim to reconstruct high-quality ISAR images from the corresponding incomplete ISAR echoes.
Jingyuan XIA +5 more
doaj +1 more source
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 +5 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
An Improved Backprojection Autofocus Method for Synthetic Aperture Sonar
IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.We propose an improved backprojection (BP) autofocus method for synthetic aperture sonar (SAS), which reduces the computational overhead of existing methods using Anderson acceleration (AA) and the sparsity of high‐intensity pixels in imagery. ABSTRACT Autofocus methods effectively compensate for multi‐source phase errors in synthetic aperture radar ...
Shiping Chen +6 more
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.This paper presents a multistatic, frequency‐ and polarimetry‐adaptive autofocus algorithm (F‐Pol) for SAR imaging of moving targets undergoing complex, six‐degrees‐of‐freedom (6‐DoF) motion. Building on Localised Threshold Sharpness (LTS), the method exploits agreement across frequency sub‐bands and polarisation channels to improve pulse‐by‐pulse ...
Anmol Rattan, Daniel Andre, Mark Finnis
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.This paper proposes a motion parameter‐based ISAR imaging method for target regions, tailored for narrow beam phased array millimetre wave (mmWave) radar. ABSTRACT Frequency modulated continuous wave (FMCW) inverse synthetic aperture radar (ISAR) imaging has the advantages of high integration, low cost, low power consumption and light weight.
Rong Jiao +4 more
wiley +1 more source
CoRRWith the rapidly growing population of resident space objects (RSOs) in the near-Earth space environment, detailed information about their condition and capabilities is needed to provide Space Domain Awareness (SDA). Space-based sensing will enable inspection of RSOs at shorter ranges, independent of atmospheric effects, and from all aspects.
Morgan Coe +3 more
openaire +2 more sources
Performance Investigation on Scan-On-Receive and Adaptive Digital Beam-Forming for High-Resolution Wide-Swath Synthetic Aperture Radar [PDF]
, 2009 The work investigates the performance of the Smart Multi-Aperture Radar Technique (SMART) Synthetic Aperture Radar (SAR) system for high-resolution wide-swath imaging based on Scan-on-Receive (SCORE) algorithm for receive beam steering.
Bordoni, Federica +4 more
core