Results 131 to 140 of about 124,434 (276)

An Adversarial Super-Resolution Remedy for Radar Design Trade-offs

open access: yes, 2019
Radar is of vital importance in many fields, such as autonomous driving, safety and surveillance applications. However, it suffers from stringent constraints on its design parametrization leading to multiple trade-offs. For example, the bandwidth in FMCW
armanious   +8 more
core   +1 more source

ISAR Imaging of a Rotating Asteroid Irradiated by Pulsar’s Electromagnetic Emission

open access: yesCybernetics and Information Technologies, 2019
The aim of the present study is imaging of moving objects, asteroids illuminated by continuous coherent wideband pulsar’s signals. As pulsars are located on more than thousands of light years from Earth, objects crossing pulsars’ emission beams are ...
Lazarov Andon D.
doaj   +1 more source

Computational Algorithms for Improved Synthetic Aperture Radar Image Focusing [PDF]

open access: yes, 2018
High-resolution radar imaging is an area undergoing rapid technological and scientific development. Synthetic Aperture Radar (SAR) and Inverse Synthetic Aperture Radar (ISAR) are imaging radars with an ever-increasing number of applications for both ...
Vehmas, Risto
core  

Performance Boundaries and Tradeoffs in Super-Resolution Imaging Technologies for Space Targets [PDF]

open access: yesarXiv
Inverse synthetic aperture radar (ISAR) super-resolution imaging technology is widely applied in space target imaging. However, the performance limits of super-resolution imaging algorithms remain a rarely explored issue. This paper investigates these limits by analyzing the boundaries of super-resolution algorithms for space targets and examines the ...
arxiv  

A Novel Method for PolISAR Interpretation of Space Target Structure Based on Component Decomposition and Coherent Feature Extraction

open access: yesRemote Sensing
Inverse Synthetic Aperture Radar (ISAR) serves as a valuable instrument for surveillance of space targets. There has been a great deal of research on space target identification using ISAR.
Zhuo Chen   +5 more
doaj   +1 more source

ISAR Autofocus Imaging Algorithm for Maneuvering Targets Based on Phase Retrieval and Gabor Wavelet Transform [PDF]

open access: yes, 2018
The imaging issue of a rotating maneuvering target with a large angle and a high translational speed has been a challenging problem in the area of inverse synthetic aperture radar (ISAR) autofocus imaging, in particular when the target has both radial ...
Qiao, Zhijun, Shi, Hongyin, Yang, Ting
core   +1 more source

Μελέτη μεθόδων μη παραμετρικής φασματικής ανάλυσης για την απεικόνιση εναέριων στόχων με την χρήση ραντάρ αντίστροφης συνθετικής απεικόνισης [PDF]

open access: yes, 2014
Αντικείμενο της διατριβής αποτελεί η μελέτη της απεικονιστικής τεχνικής του ραντάρ αντίστροφης συνθετικής απεικόνισης (Inverse Synthetic Aperture Radar - ISAR) με την χρήση μεθόδων μη παραμετρικής φασματικής ανάλυσης. Οι μέθοδοι που εξετάζονται είναι οι μέθοδοι μη παραμετρικής φασματικής ανάλυσης CAPON και APES, ο αλγόριθμος εκτίμησης φασματικών ...
openaire   +2 more sources

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