Results 31 to 40 of about 640 (180)

First Coincident Radar and Optical Observations of a Meteor Radio Afterglow

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract It has been hypothesized that Meteor Radio Afterglows (MRAs) occur due to resonant transition radiation (RTR) where suprathermal electrons emit as they pass through electron density inhomogeneities in a turbulent plasma. Meteor trails are thought to produce suprathermal electrons through anion oxidation, which can be identified through meteor ...
K. S. Obenberger, J. L. Chau, J. Vierinen, D. Vida, L. E. Cordonnier, Z. Balint, M. Clahsen, E. Dao, J. Dowell, J. M. Holmes, R. F. Kelly, D. Kastinen, N. Pfeffer, K. Robinson, G. B. Taylor, J. M. Urco   +15 more
wiley   +1 more source

Phaseless Multistatic Synthetic Aperture Radar Imaging

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Multistatic phaseless synthetic aperture radar (SAR) is a novel imaging modality that offers advantages in reduced hardware complexity, operability at high frequencies, robustness, jamming resistance, and improved accuracy and resolution.
Bariscan Yonel, Nazia Choudhury, Birsen Yazici   +2 more
doaj   +1 more source

Frequency Selective Rasorber With Low Insertion Loss and Ultra‐Broadband Scattering Reduction

Advanced Physics Research, Volume 5, Issue 2, February 2026.
We present a dual‐polarization broadband frequency selective rasorber featuring a transmission window in the middle of its absorption band. The proposed FSR achieves a –10 dB reflection band over 3.68–16.94 GHz with a fractional bandwidth of 128.6%, featuring a minimum insertion loss of 0.3 dB at 10.3 GHz.
Ziming Yu, Chong He, Liping Liu, Liming Si, Weiren Zhu   +4 more
wiley   +1 more source

Solution of inverse localization problem associated to multistatic radar system

MATEC Web of Conferences, 2016
This work deals with the problem of inverse localization by a target with the aim to retrieve the position of the target, given the intensity and phase of the electromagnetic waves scattered by this object.
Boutkhil M., Driouach A., Khamlichi A.
doaj   +1 more source

Dynamic Multistatic Synthetic Aperture Radar Imaging: Resolving Motion via Differential Semblance and k‐Space Diversity

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
Moving targets often appear defocused and displaced in SAR imagery, complicating detection and recognition—especially when displaced into cluttered regions, where signal‐to‐background ratio is reduced. This work presents a multistatic SAR framework that extracts moving target signatures and reconstructs focused images, providing new insights into the ...
Francis Watson, Joshua Hellier, Daniel Andre   +2 more
wiley   +1 more source

Time delay estimation issues for target detection and transmitter identification in multistatic radars

Engineering Reports, 2020
Time delay estimation (TDE) is an active research area due to its importance in a wide range of applications, such as target detection and transmitter identification.
Dillip Dash, Valarmathi Jayaraman
doaj   +1 more source

Collaborative transmit resource scheduling and waveform selection for target tracking in multistatic radar system

IET Radar, Sonar & Navigation, 2021
This paper proposes a collaborative transmit resource scheduling and waveform selection (CTRSWS) strategy for target tracking in multistatic radar system which consists of one transmitter and an arbitrary number of receivers.
Yijie Wang, Chenguang Shi, Fei Wang, Jianjiang Zhou   +3 more
doaj   +1 more source

Range‐Free Localisation for Monostatic Passive Radar Employing Multi‐Narrowband Illuminators

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
Range‐free localisation is considered for monostatic passive radar with multiple narrowband illuminators under unreliable time‐delay (range) measurements. Doppler/DOA (and optional Doppler‐rate) are fused in an ML framework, where velocity is iteratively updated to reduce the original 6‐D optimisation to a 3‐D position search.
Chenggeng Zhao, Chuanbin Zang, Lianpeng Li, Heyue Huang, Xingpeng Mao   +4 more
wiley   +1 more source

Frequency Domain Image Reconstruction for Imaging With Multistatic Dynamic Metasurface Antennas

IEEE Access, 2022
Dynamic metasurface antennas (DMAs) have recently been introduced as a computational imaging (CI) platform that offers significant advantages over conventional imaging systems.
Vasiliki Skouroliakou, Amir Masoud Molaei, Maria Garcia-Fernandez, Guillermo Alvarez-Narciandi, Okan Yurduseven   +4 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, Marcus Albrecht, Peter Knott   +2 more
wiley   +1 more source