Results 71 to 80 of about 3,510 (228)

Investigating SAR algorithm for spaceborne interferometric oil spill detection [PDF]

open access: yes, 2016
The environmental damages and recovery of terrestrial ecosystems from oil spills can last decades. Oil spills have been responsible for loss of aquamarine lives, organisms, trees, vegetation, birds and wildlife. Although there are several methods through
Ceriotti, Matteo   +3 more
core  

Multistatic Synthetic Aperture Radar Autofocus for Back Projection Imaging of a Moving Target

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
This paper presents a new metric‐based autofocus approach, called Localised Threshold Sharpness (LTS), which employs Multistatic SAR data to localise and focus a target moving with up to six degrees of freedom motion on a real‐time, pulse‐by‐pulse basis.
Anmol Rattan, Daniel Andre, Mark Finnis
wiley   +1 more source

Establishing the Capabilities of the Murchison Widefield Array as a Passive Radar for the Surveillance of Space

open access: yesRemote Sensing, 2022
This paper describes the use of the Murchison Widefield Array, a low-frequency radio telescope at a radio-quiet Western Australian site, as a radar receiver forming part of a continent-spanning multistatic radar network for the surveillance of space ...
Brendan Hennessy   +7 more
doaj   +1 more source

The Case for Combining a Large Low-Band Very High Frequency Transmitter With Multiple Receiving Arrays for Geospace Research: A Geospace Radar [PDF]

open access: yes, 2019
We argue that combining a high‐power, large‐aperture radar transmitter with several large‐aperture receiving arrays to make a geospace radar—a radar capable of probing near‐Earth space from the upper troposphere through to the solar corona—would ...
Chau, JL   +5 more
core   +3 more sources

Sparse Array Configuration Optimization Based on Target Priors in Distributed ISAR Imaging

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
In this letter, we consider the sparse array configuration optimization problem for distributed inverse synthetic aperture radar (ISAR) imaging of long‐range targets, aiming to suppress the strong grating lobes caused by sparse sampling. Particularly, we propose a distributed ISAR configuration optimization method, which constructs an equivalent ...
Siyu Zhao, Guangbin Zhang, Yan Wang
wiley   +1 more source

Synchronous Design and Test of Distributed Passive Radar Systems Based on Digital Broadcasting and Television

open access: yesLeida xuebao, 2017
Digital broadcasting and television are important classes of illuminators of opportunity for passive radars. Distributed and multistatic structure are the development trends for passive radars. Most modern digital broadcasting and television systems work
Wan Xianrong   +4 more
doaj   +1 more source

Maritime Moving Target Joint Localization and Kinematic State Estimation Using GNSS-Based Multistatic Radar

open access: yesAtmosphere, 2022
A global navigation satellite system (GNSS)-based multistatic radar is explored for target localization and kinematic state estimation. Since any point on the earth can be illuminated by a minimum of four satellites of each GNSS constellation at any time,
Binbin Wang, Hao Cha, Zibo Zhou, Lei Zuo
doaj   +1 more source

Fourier-based imaging for subsampled multistatic arrays [PDF]

open access: yes, 2016
This contribution focuses on the limitations of Fourier-based imaging when applied to subsampled arrays used in multistatic millimeter-wave radar systems.
García Pino, Antonio   +4 more
core   +2 more sources

Research on methods to enhance the survivability of AWACS with FDA against anti‐ARMs on a battlefield

open access: yesIET Microwaves, Antennas &Propagation, Volume 19, Issue 1, January/December 2025.
The article improves the battlefield survival capability of early warning aircraft by using direction finding deception technology on reconnaissance systems using frequency controlled array early warning aircraft. Abstract The Airborne Warning and Control System (AWACS) are pivotal assets in aerial operations, necessitating specialised protection ...
Bo Wang   +4 more
wiley   +1 more source

Millimeter wave imaging architecture for on-the-move whole body imaging [PDF]

open access: yes, 2016
This paper presents a novel interrogation system that combines multiple millimeter wave transmitters and receivers to create real-time high-resolution radar images for personnel security screening.
Arboleya Arboleya, Ana   +7 more
core   +2 more sources

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