Results 61 to 70 of about 118,997 (243)
Computational Burden Resulting from Image Recognition of High Resolution Radar Sensors
Sensors, 2013 This paper presents a methodology for high resolution radar image generation and automatic target recognition emphasizing the computational cost involved in the process.
Elena Rufo +5 more
doaj +1 more source
Polarisation variation of linear polarised Bi‐ISAR system in space targets imaging
IET Radar, Sonar & Navigation, 2021 A bistatic inverse synthetic aperture radar (Bi‐ISAR) system is used to observe space targets through different viewing angles via a bistatic radar configuration. It is seen that the receiver of a linear polarised Bi‐ISAR system with a long baseline will
Linsheng Bu, Junling Wang
doaj +1 more source
Near‐field scattering centre modelling for complex targets
IET Radar, Sonar &Navigation, Volume 18, Issue 12, Page 2657-2666, December 2024.In this paper, the authors presented the near‐field scattering centre model with the dependence description of radar distance. The model can be used to quickly calculate the near‐field scattering field and radar image features of complex targets. Abstract The parametric scattering centre (SC) model of the target has been widely used in the rapid ...
Yanxi Chen +3 more
wiley +1 more source
Review of High-resolution Imaging Techniques of Wideband Inverse Synthetic Aperture Radar
Leida xuebao, 2020 At present, the emphasis of Inverse Synthetic Aperture Radar (ISAR) systems on the characteristics of high carrier frequency, wide bandwidth, multi-polarization capability, distribution, and networking has led to the development and progress of ISAR ...
Biao TIAN +5 more
doaj +1 more source
On estimating parameters of a multi-component Chirp Model with equal chirp rates [PDF]
arXiv, 2023 Multi-component chirp signal models with equal chirp rates appear in various radar applications, e.g., synthetic aperture radar, echo signal of a rapid mobile target, etc. Many sub-optimal estimators have been developed for such models, however, these suffer from the problem of either identifiability or error propagation effect.
arxiv
A novel multi‐target TBD scheme for GNSS‐based passive bistatic radar
IET Radar, Sonar &Navigation, Volume 18, Issue 12, Page 2497-2512, December 2024.The paper presents a novel approach to enhance low‐altitude surveillance in urban and suburban areas using GNSS‐based passive bistatic radar systems. Despite challenges such as weak signal power budget and complex multi‐target tracking, the proposed method introduces a track‐before‐detect (TBD) strategy with a DCCF‐based cluster centroid extraction ...
Tao Tang +4 more
wiley +1 more source
HRRPGraphNet: Make HRRPs to be graphs for efficient target recognition
Electronics Letters, Volume 60, Issue 22, November 2024.Conventional techniques for High‐Resolution Range Profiles (HRRP) target recognition frequently encounter difficulties due limited data under non‐cooperated circumstances. We propose a novel use of graph‐theory of HRRPs and convert traditional sequence‐based recognition into a sophisticated graph classification task to achieve efficient target ...
Lingfeng Chen +7 more
wiley +1 more source
ISAR Image Classification with Wavelet and Watershed Transforms [PDF]
, 2016 Inverse Synthetic Aperture Radar images are playing a significant role in classification of sea and air targets. First we acquire the ISAR images of targets using a sensor like radar and extract the characteristics of targets from the ISAR images in the ...
Mamatha, B., Valli Kumar, V.
core +2 more sources
IET Radar, Sonar &Navigation, Volume 18, Issue 11, Page 2144-2154, November 2024.This paper demonstrates the possibility of utilising a ground‐based barrage jammer as an illumination source for passive radar detection, tracking and ISAR imaging. This article will present some of the outcomes of field trials conducted within the international electronic warfare exercises.
Roman Mularzuk +12 more
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 18, Issue 11, Page 2325-2332, November 2024.The authors propose a multi‐carrier LFM signal reception method based on subcarrier frequency offset deramp processing. By properly introducing a carrier frequency interval difference between the transmit and reference signals, multi‐carrier LFM signal deramp processing is implemented through frequency mixing, which allows crosstalk‐free separation of ...
Jinhu Li +4 more
wiley +1 more source