Results 61 to 70 of about 46,586 (232)

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

Imaging of High-Speed Aerial Targets With ISAR Installed on a Moving Vessel

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
An inverse synthetic aperture radar (ISAR) technique is proposed to acquire high-resolution steady images of high-speed aerial target with radar installed on a moving vessel.
Dau-Ming Wu, Jean-Fu Kiang
doaj   +1 more source

An Efficient ISAR Imaging Method for Multiple Targets [PDF]

open access: yes, 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   +3 more
core   +1 more source

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

open access: yesIET 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   +3 more
wiley   +1 more source

Inverse Airborne Optical Sectioning

open access: yesDrones, 2022
We present Inverse Airborne Optical Sectioning (IAOS), an optical analogy to Inverse Synthetic Aperture Radar (ISAR). Moving targets, such as walking people, that are heavily occluded by vegetation can be made visible and tracked with a stationary ...
Rakesh John Amala Arokia Nathan   +2 more
doaj   +1 more source

2-D Coherence Factor for Sidelobe and Ghost Suppressions in Radar Imaging [PDF]

open access: yes, 1956
The coherence factor (CF) is defined as the ratio of coherent power to incoherent power received by the radar aperture. The incoherent power is computed by the multi-antenna receiver based on only the spatial variable.
Li, Shiyong   +4 more
core   +3 more sources

Experimental Synthetic Aperture Radar with Dynamic Metasurfaces

open access: yes, 2017
We investigate the use of a dynamic metasurface as the transmitting antenna for a synthetic aperture radar (SAR) imaging system. The dynamic metasurface consists of a one-dimensional microstrip waveguide with complementary electric resonator (cELC ...
Boyarsky, Michael   +6 more
core   +2 more sources

High-resolution Side-view and Top-view Imaging Method of Ship Targets Using Multistatic ISAR [PDF]

open access: yesLeida xuebao, 2012
How to obtain high-resolution images of ship targets is an active research area in radar field due to the complexity of the ship motion. At the same time, multi-platform based surveillance and combat mode is gaining more and more interests in recent ...
Li Ning, Wang Ling, Zhang Gong
doaj   +1 more source

Statistical Analysis of Performance of Optimisation‐Based SAR Autofocus

open access: yesIET 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   +2 more
wiley   +1 more source

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

open access: yesInternational 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   +3 more
wiley   +1 more source

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