Results 81 to 90 of about 6,651 (246)

ISAR Imaging of Ship Targets Based on an Integrated Cubic Phase Bilinear Autocorrelation Function

open access: yesSensors, 2017
For inverse synthetic aperture radar (ISAR) imaging of a ship target moving with ocean waves, the image constructed with the standard range-Doppler (RD) technique is blurred and the range-instantaneous-Doppler (RID) technique has to be used to improve ...
Jibin Zheng   +3 more
doaj   +1 more source

Guest Editorial: Selected Papers From Radar 2023—Dreaming the Radar Future

open access: yes
IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
Brian W.‐H. Ng   +3 more
wiley   +1 more source

Measurements and analysis of the radar cross section of chaff dipoles

open access: yesIET Radar, Sonar &Navigation, Volume 18, Issue 11, Page 2182-2188, November 2024.
Photo of a filament under test in a stereo‐foam support. Abstract A free space test method to measure the Radar Cross Section (RCS) of single dipole elements is presented. The method is such that dipoles can be measured over a large range of frequencies, in free space and without the need of an anechoic chamber.
Alessio Balleri, Brian Butters
wiley   +1 more source

Three‐dimensional interferometric inverse synthetic aperture radar imaging of ship target based on cubic phase signal model

open access: yesIET Radar, Sonar &Navigation, Volume 18, Issue 10, Page 1691-1709, October 2024.
This paper proposes a three‐dimensional interferometric inverse synthetic aperture radar imaging algorithm for the ship targets based on the cubic phase signal (CPS) model. This method approximates the azimuth echo signal as a CPS and utilises the particle swarm optimisation algorithm to estimate the higher order phase coefficients.
Junting Yang, Yong Wang
wiley   +1 more source

3-D High-Resolution ISAR Imaging for Noncooperative Air Targets

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This article uses the inverse synthetic aperture radar (ISAR) imaging method to present real-world tests on 3-D radar imaging of noncooperative air targets. Initially, the fundamentals of 3-D ISAR are introduced.
Marcin Kamil Baczyk   +10 more
doaj   +1 more source

Ship dynamics for maritime ISAR imaging. [PDF]

open access: yes, 2008
Demand is increasing for imaging ships at sea. Conventional SAR fails because the ships are usually in motion, both with a forward velocity, and other linear and angular motions that accompany sea travel. Because the target itself is moving, this becomes
Doerry, Armin Walter
core   +1 more source

Photonics-based broadband radar for high-resolution and real-time inverse synthetic aperture imaging.

open access: yesOptics Express, 2017
A photonics-based radar with generation and de-chirp processing of broadband linear frequency modulated continuous-wave (LFMCW) signal in optical domain is proposed for high-resolution and real-time inverse synthetic aperture radar (ISAR) imaging. In the
Fangzheng Zhang   +6 more
semanticscholar   +1 more source

A novel motion compensation algorithm for spaceborne inverse synthetic aperture radar imaging of air target under low signal‐to‐noise ratio condition

open access: yesIET Radar, Sonar &Navigation, Volume 18, Issue 9, Page 1444-1459, September 2024.
A novel translational motion compensation algorithm based on motion parameter estimation is proposed for spaceborne Inverse Synthetic Aperture Radar imaging of air target under low signal‐to‐noise ratio condition. The algorithm compensates for both distance migration and Doppler migration caused by the first‐order and second‐order motion components of ...
Yichen Zhou, Yong Wang
wiley   +1 more source

Three dimensional scattering center imaging techniques [PDF]

open access: yes
Two methods to image scattering centers in 3-D are presented. The first method uses 2-D images generated from Inverse Synthetic Aperture Radar (ISAR) measurements taken by two vertically offset antennas.
Burnside, W. D., Younger, P. R.
core   +1 more source

Sparse representation for the ISAR image reconstruction [PDF]

open access: yes, 2016
In this paper, a sparse representation for the data form a multi-input multi-output based inverse synthetic aperture radar (ISAR) system is derived for two dimensions.
Hu, Mengqi
core   +1 more source

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