Results 51 to 60 of about 5,913 (195)

Directional sensitivity of track initialisation of a multistatic Doppler‐only passive radar network

open access: yesIET Radar, Sonar & Navigation, 2021
A multistatic passive radar network originally presented in Ptak et al. for long‐distance aircraft tracking is sensitive to track initialisation errors. When these errors exceed 50 km, target tracking often diverges.
Miika Tolonen   +4 more
doaj   +1 more source

System Concepts for Bi- and Multi-Static SAR Missions [PDF]

open access: yes, 2003
The performance and capabilities of bi- and multistatic spaceborne synthetic aperture radar (SAR) are analyzed. Such systems can be optimized for a broad range of applications like frequent monitoring, wide swath imaging, single-pass cross-track ...
Fiedler, Hauke   +4 more
core  

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

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

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  

Region-enhanced passive radar imaging [PDF]

open access: yes, 2005
The authors adapt and apply a recently-developed region-enhanced synthetic aperture radar (SAR) image reconstruction technique to the problem of passive radar imaging.
Cetin, Mujdat   +2 more
core   +1 more source

Modeling Regional Electric Field Using EISCAT3D Observations

open access: yesJournal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract EISCAT3D, which is in its final stage of construction, will be the next generation incoherent scatter radar (ISR) system to provide the full ion velocity vector across hundreds of kms in vertical and horizontal directions. This presents a tremendous opportunity to study the three‐dimensional nature of ionospheric electrodynamics.
Habtamu W. Tesfaw   +5 more
wiley   +1 more source

Development of the TanDEM-X Calibration Concept: Analysis of Systematic Errors [PDF]

open access: yes, 2010
The TanDEM-X mission, result of the partnership between the German Aerospace Center (DLR) and Astrium GmbH, opens a new era in spaceborne radar remote sensing. The first bistatic satellite synthetic aperture radar mission is formed by flying the TanDEM-
Bachmann, Markus   +3 more
core   +1 more source

Integrating Systems Methodologies for Australian Undersea Surveillance: A Systematic Literature Review

open access: yesSystems Engineering, Volume 28, Issue 4, Page 471-497, July 2025.
ABSTRACT Australia is a maritime nation, relying on access to its surrounding oceans for its economy and security. The Royal Australian Navy conducts undersea surveillance to monitor this vital maritime environment and gain insight into activities beneath the ocean's surface.
Timothy J. Milledge   +2 more
wiley   +1 more source

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

open access: yesEngineering 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

Time Reversal Detection in Multistatic Radar System

open access: yesIEEE Access, 2020
A multistatic radar system can effectively improve the detection performance owing to its spatial diversity property. However, the detection performance will degrade when there exist multipaths.
Zhaoming Zhang   +2 more
doaj   +1 more source

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