Results 11 to 20 of about 45,172 (297)

Ideal clutters

open access: yesDiscrete Applied Mathematics, 2002
The Operations Research model known as the Set Covering Problem has a wide range of applications. See for example the survey by Ceria, Nobili and Sassano and edited by Dell'Amico, Maffioli and Martello (Annotated Bibliographies in Combinatorial Optimization, Wiley, New York, 1997).
Gérard Cornuéjols, Bertrand Guenin
openaire   +1 more source

Range-Doppler Based CFAR Ship Detection with Automatic Training Data Selection

open access: yesRemote Sensing, 2019
Ship detection is an essential maritime security requirement. Current state-of-the-art synthetic aperture radar (SAR) based ship detection methods employ fully focused images.
Sushil Kumar Joshi   +3 more
doaj   +1 more source

Envelopes and clutters

open access: yesDiscrete Applied Mathematics, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kenji Kashiwabara, Bunpei Nakano
openaire   +1 more source

Knowledge-aided Bayesian covariance matrix estimation in compound-Gaussian clutter [PDF]

open access: yes, 2010
We address the problem of estimating a covariance matrix R using K samples zk whose covariance matrices are kR, where k are random variables. This problem naturally arises in radar applications in the case of compound-Gaussian clutter. In contrast to the
Bandiera, Francesco   +6 more
core   +1 more source

Hybrid Sidelobe Recognition Method Using Boresight Error and Quadrant Signal Difference for Monopulse Array [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
In this paper, a sidelobe recognition method using boresight error and quadrant signal difference for a monopulse array is proposed. A conventional sidelobe recognition method compares the difference between the sum and delta channels.
Daewoong Woo   +3 more
doaj   +1 more source

A comparative study of linear and region based diagrams

open access: yesJournal of Spatial Information Science, 2015
There are two categories of objects spatial information science investigates: actual objects and their spatial properties, such as in geography, and abstract objects which are employed metaphorically, as for visual languages.
Björn Gottfried
doaj   +1 more source

Clutter rejection for MTI radar using a single antenna and a long integration time [PDF]

open access: yes, 2011
Moving Target Indicators (MTI) are airborne radar systems designed to detect and track moving vehicles or aircrafts. In this paper, we address the problem of detecting hazardous collision targets to avoid them.
Jean-Yves Tourneret   +5 more
core   +1 more source

Improved entropy-based autofocus correction for synthetic aperture radar

open access: yesThe Journal of Engineering, 2019
Autofocus is an essential step in order to obtain the well-focused synthetic aperture radar image. Compared to the non-parametric autofocus, the parametric way is not subjected to the prominent targets so much.
Qianrong Lu   +3 more
doaj   +1 more source

Comparison of Real Experimental and Simulated RCS of Flying Artillery Projectile [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
This study compares the actual experimental and simulation data of artillery projectiles (M107 projectiles) fired by a 155-mm gun. The experimental data are collected using a weapon-locating radar developed by LigNex1.
Jeong-Hun Nam   +4 more
doaj   +1 more source

Clutter Elimination and Random-Noise Denoising of GPR Signals Using an SVD Method Based on the Hankel Matrix in the Local Frequency Domain

open access: yesSensors, 2018
Ground-penetrating radar (GPR) is a kind of high-frequency electromagnetic detection technology. It is mainly used to locate targets and interfaces in underground structures.
Wenda Bi   +3 more
doaj   +1 more source

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