Results 101 to 110 of about 7,032 (255)

ISAR imaging Based on the Empirical Mode Decomposition Time-Frequency Representation

open access: yes, 2016
International audienceThis work proposes an adaptation of the Empirical Mode Decomposition Time-Frequency Distribution (EMD-TFD) to non-analytic complex-valued signals.
Cexus, Jean-Christophe   +4 more
core   +1 more source

A Novel Wide Area Multiple Azimuth Beam ISAR Imaging System

open access: yesIEEE Access, 2019
A novel multiple azimuth beams (MAB) inverse synthetic aperture radar (ISAR) system, as well as, the corresponding processing algorithms are proposed in this paper, which is a promising technology for wide area surveillance (WAS).
Taoli Yang   +3 more
doaj   +1 more source

Microlocal ISAR for Low Signal-to-Noise Environments [PDF]

open access: yes, 2006
The problem of extracting radar target information from multi-aspect high-range-resolution data is examined. We suggest a new non-imaging approach that is based on microlocal analysis, which is a mathematical theory developed to handle highfrequency ...
Borden, Brett, Cheney, Margaret
core  

Performance Analysis on ISAR Imaging of Space Targets

open access: yesLeida xuebao, 2017
Usually, in traditional Inverse Synthetic Aperture Radar (ISAR) systems design and mode selection for space satellite targets, coherent integration gain in azimuth direction hardly can be analyzed, which depends on target’s motion.
Zhou Yejian   +3 more
doaj   +1 more source

Inverse Synthetic Aperture Radar Imaging of Targets with Complex Motion based on Optimized Non-Uniform Rotation Transform

open access: yesRemote Sensing, 2018
Focusing on the inverse synthetic aperture radar (ISAR) imaging of targets with complex motion, this paper proposes a modified version of the Fourier transform, called non-uniform rotation transform, to achieve cross-range compression.
Wenzhen Wu   +4 more
semanticscholar   +1 more source

Short-range passive radar for small private airports surveillance [PDF]

open access: yes, 2016
This paper investigates the effectiveness of a passive radar for enhancing the security level in small airports and private runways. Specifically WiFi transmissions are parasitically exploited to perform detection and localization of non-cooperative ...
BONGIOANNI, CARLO   +4 more
core  

Bistatic image processing for a 32 x 19 inch model aircraft using scattered fields obtained in the OSU-ESL compact range [PDF]

open access: yes
Inverse Synthetic Aperture Radar (ISAR) images for a 32 in long and 19 in wide model aircraft are documented. Both backscattered and bistatic scattered fields of this model aircraft were measured in the OSU-ESL compact range to obtain these images.
Burnside, W. D., Lee, T-H.
core   +1 more source

Inverse Synthetic Aperture Radar Imaging Theory and Application [PDF]

open access: yes, 2011
Inverse Synthetic Aperture Radar (ISAR) is an electromagnetic sensing system that is capable of producing high resolution microwave images of moving targets.
Lopez, Jaime Xavier
core   +1 more source

Long-Time Observation-Based Multiattitude ISAR Imaging Method for Moving Ships

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Long-time synthetic aperture radar observation facilitates the tracking and identification of moving targets. However, continuous changes in the attitude of a moving target during long-duration observations cause the azimuth signal’s time– ...
Zhifeng Xie   +4 more
doaj   +1 more source

Robust method for ship recognition based on ISAR imaging using 3D model

open access: yesThe Journal of Engineering, 2019
This study develops a robust method for ship target recognition, based on inverse synthetic aperture radar (ISAR) image matching with the template of 3D model.
Sudao D. Xie, M.Y. Pan, D.S. Li
doaj   +1 more source

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