Results 61 to 70 of about 431 (155)

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

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

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

Random Stepped Frequency ISAR 2D Joint Imaging and Autofocusing by Using 2D-AFCIFSBL

Remote Sensing
With the increasingly complex electromagnetic environment faced by radar, random stepped frequency (RSF) has garnered widespread attention owing to its remarkable Electronic Counter-Countermeasure (ECCM) characteristic, and it has been universally ...
Yiding Wang, Yuanhao Li, Jiongda Song, Guanghui Zhao   +3 more
doaj   +1 more source

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

Resolution and Micro-Doppler Effect in Bi-ISAR System (in English)

Leida xuebao, 2013
Compared to the monostatic radar, bistatic radar has many special characteristics because of its spatial complexity. Bistatic Inverse Synthetic Aperture Radar (Bi-ISAR) can be employed as a radar imaging tool for obtaining non-cooperative target images ...
Deng Dong-hu, Zhang Qun, Luo Ying, Li Song, Zhu Ren-fei   +4 more
doaj   +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

Performance Boundaries and Tradeoffs in Super-Resolution Imaging Technologies for Space Targets

Remote Sensing
Inverse synthetic aperture radar (ISAR) super-resolution imaging technology is widely applied in space target imaging. However, the performance limits of super-resolution imaging algorithms remain largely unexplored.
Xiaole He, Ping Liu, Junling Wang
doaj   +1 more source

Deception Jamming Against ISAR With Coupled Two-Dimensional Compressive Sensing via Sub-Nyquist Sampling

IEEE Access, 2018
Sub-Nyquist sampling is a common means of interfering with inverse synthetic aperture radar (ISAR) imaging, which has been validated for the feasibility of 1-D compressive sensing (CS) ISAR imaging.
Jiyuan Chen, Xiaoyi Pan, Letao Xu, Wei Wang   +3 more
doaj   +1 more source