Results 31 to 40 of about 360 (148)
High-Resolution Range Profile Feature Transformation Method Based on Amplitude-Phase Modulation Metasurface [PDF]
, 2022 Time-modulated metasurfaces have attracted much attention due to their flexible manipulation of electromagnetic waves. Time-varying response leads to spread-spectrum and reallocation of energy.
Ran Sui +3 more
core +1 more source
Flexible blanket synthetic aperture radar jamming using joint frequency and phase modulation
IET Radar, Sonar &Navigation, Volume 17, Issue 7, Page 1129-1141, July 2023., 2023 In this study, a flexible blanket jamming method against SAR is proposed using joint frequency and phase modulation. The proposed method can form two‐dimensional square‐shaped blanket sidelobes in the SAR image by the coded phase modulation in both fast and slow time domain.
Qihua Wu +5 more
wiley +1 more source
EURASIP Journal on Advances in Signal Processing, 2021 The interrupted transmitting and receiving (ITR) can be used in anechoic chamber to solve the coupling between the transmitted and reflected signals. When the ITR periods are random, the fake peaks in high-resolution range profile (HRRP) of ITR echo can ...
Xiaobin Liu +3 more
doaj +1 more source
IET Radar, Sonar &Navigation, Volume 17, Issue 3, Page 503-521, March 2023., 2023 A new 3D reconstruction method for stable targets from sequential ISAR images is proposed in this paper. Firstly, the inverse synthetic aperture radar (ISAR) images are preprocessed with the CLEAN algorithm. The maximum between‐cluster variance method (OTSU) is applied to extract feature points from the processed images.
Yu Wang +4 more
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 17, Issue 2, Page 153-178, February 2023., 2023 Abstract A multi‐function radar is designed to perform disparate functions, such as surveillance, tracking, fire control, amongst others, within a limited resource (time, frequency, and energy) budget. A radar resource management (RRM) module within a radar system makes decisions on prioritisation, parameter selection, and scheduling of associated ...
Umair Sajid Hashmi +4 more
wiley +1 more source
Scientific Programming, Volume 2023, Issue 1, 2023., 2023 A synthetic aperture radar (SAR) automatic target recognition (ATR) method is developed based on the two‐dimensional variational mode decomposition (2D‐VMD). 2D‐VMD decomposes original SAR images into multiscale components, which depict the time‐frequency properties of the targets.
Wenbo Weng, Dongpo Xu
wiley +1 more source
Parameter Estimation of Micro-Motion Targets for High-Resolution-Range Radar Using Online Measured Reference. [PDF]
Sensors (Basel), 2018 Micro-motion dynamics produce Micro-range (m-R) signatures which are important features for target classification and recognition, provided that the range resolution of radar signal is high enough.
Xing Y, You P, Yong S.
europepmc +2 more sources
IET Radar, Sonar &Navigation, Volume 16, Issue 12, Page 1997-2016, December 2022., 2022 Abstract Convolution neural networks (CNNs) represent one of the workhorses of artificial intelligence applications. As a typical artificial intelligence application, a high‐resolution range profile (HRRP) target recognition method based on CNNs has aroused a lot of research interest. Most CNNs use a relatively small and single‐scale convolution kernel
Qian Xiang +5 more
wiley +1 more source
Multi‐subband fusion algorithm based on autoencoder
IET Signal Processing, Volume 16, Issue 9, Page 1071-1084, December 2022., 2022 Abstract A novel algorithm for multi‐subband signal fusion achieves performance superior to traditional all‐pole model, matrix pencil algorithm and deep‐neural‐network (Deep neural network (DNN)). The method uses a deep‐learning autoencoder more fully described as a multi‐subband fusion autoencoder (MSFAE). This autoencoder comprises two parts: a multi‐
Yilin Jiang +4 more
wiley +1 more source
A Novel Radar HRRP Recognition Method with Accelerated T-Distributed Stochastic Neighbor Embedding and Density-Based Clustering. [PDF]
Sensors (Basel), 2019 High-resolution range profile (HRRP) has attracted intensive attention from radar community because it is easy to acquire and analyze. However, most of the conventional algorithms require the prior information of targets, and they cannot process a large ...
Wu H, Dai D, Wang X.
europepmc +2 more sources