Results 51 to 60 of about 516 (136)

Statistical Analysis of Performance of Optimisation‐Based SAR Autofocus

IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
Transionospheric SAR autofocus is a variational algorithm designed to overcome the limitations of conventional autofocus methods in correcting ionospheric distortions in spaceborne SAR images. This study provides a systematic statistical analysis of its robustness, examining the effects of turbulence, clutter, and noise on performance.
Patrick Haughey, Mikhail Gilman, Semyon Tsynkov   +2 more
wiley   +1 more source

Pareto‐Optimized Mobile‐Sink Routing for Energy‐Efficient Wireless Sensor Networks

International Journal of Energy Research, Volume 2025, Issue 1, 2025.
Wireless sensor networks (WSNs) are inherently constrained by limited battery resources, making the design of energy‐efficient communication protocols critical for extending network lifetime. Cluster‐based routing, enhanced through optimization algorithms, has emerged as a promising solution to balance energy consumption and improve scalability.
Ayman A. Alharbi, Emad S. Hassan, Idris H. Smaili, Amir Afzal   +3 more
wiley   +1 more source

Improved Scattering Center Extraction From ISAR Data Using Simplex Optimization

International Journal of Antennas and Propagation, Volume 2025, Issue 1, 2025.
Inverse synthetic‐aperture radar (ISAR) techniques have started to play a key role in calculating the radar cross‐section (RCS) values of objects from near‐field measurements. It is assumed that the scene (or the scatterer) is composed of scattering centers (SCs) whose locations and complex amplitudes are found from the ISAR data.
Bahar Ugurdogan, A. Arif Ergin, Andrea Francesco Morabito   +2 more
wiley   +1 more source

Research of InISAR imaging based on joint translational compensation

The Journal of Engineering, 2019
In order to solve the problem that conventional inverse synthetic aperture radar three-dimensional (InISAR 3D) imaging methods need too much computation and so many restrictions in image registration step, this study proposes an InISAR 3D imaging ...
Kai Zhang, Yingni Hou, Lin Jin
doaj   +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

SDRnet: A Deep Fusion Network for ISAR Ship Target Recognition Based on Feature Separation and Weighted Decision

Remote Sensing
Existing methods for inverse synthetic aperture radar (ISAR) target recognition typically rely on a single high-resolution radar signal type, such as ISAR images or high-resolution range profiles (HRRPs).
Jie Deng, Fulin Su
doaj   +1 more source

Leveraging Mobile Processors for ISAR Image Generation and Classification in Radar Platforms

IEEE Access
With the growing threats posed by small airborne platforms such as drones in modern warfare, there is an increasing demand for small target identification technology.
Seongwook Kim, Sukhyun Han, Woojin Cho, Youngjae Choi, Seungeui Lee, Youngseok Bae, Seokin Hong   +6 more
doaj   +1 more source

Guest Editorial: Selected Papers From Radar 2023—Dreaming the Radar Future

IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
Brian W.‐H. Ng, Elias Aboutanios, Luke Rosenberg, Marco Martorella   +3 more
wiley   +1 more source

SA-ISAR imaging algorithm based on the gradient signal recovery method

The Journal of Engineering, 2019
As the radar system tends to be complex, obtaining well-focused images with discontinued apertures becomes a challenge. Here, a new sparse aperture inverse synthetic aperture radar (SA-ISAR) imaging approach through the signal recovery method is proposed.
Bingren Ji, Bin Zhao, Yong Wang, Rongqing Xu   +3 more
doaj   +1 more source

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, Zhang Lei, Wang Hongxian, Xing Mengdao   +3 more
doaj   +1 more source