Results 21 to 30 of about 1,336 (197)

Georadar Waveform Characterization of Tunnel Lining Rear Defects and Joint Detection Method in Time and Frequency Domains [PDF]

open access: yesSensors
Aiming at the signal interference and feature recognition difficulties existing in the detection of concealed defects such as cracks and voids behind the tunnel lining, this study carried out a 1:1 reinforced concrete–steel arch frame composite lining ...
Jian Liu   +7 more
doaj   +2 more sources

Machine Learning For Modulation Classification Of Radar Signals: A Survey

open access: yesJISR on Computing, 2019
Automatic modulation recognition of radar waveform is a major topic and has many military applications. This paper surveys the models and the techniques used in recognizing different modulation types of intercepted radar waveform.
Hitham Alshoubaki
doaj   +2 more sources

Adaptive Multi-Function Radar Temporal Behavior Analysis

open access: yesRemote Sensing
The performance of radar mode recognition has been significantly enhanced by the various architectures of deep learning networks. However, these approaches often rely on supervised learning and are susceptible to overfitting on the same dataset.
Zhenjia Xu   +6 more
doaj   +2 more sources

A New Waveform Design Method for Multi-Target Inverse Synthetic Aperture Radar Imaging Based on Orthogonal Frequency Division Multiplexing Chirp

open access: yesRemote Sensing
With the increasing use of the strategy and group target attack method in the modern battlefield, multi-target inverse synthetic aperture radar (ISAR) imaging simultaneously with high efficiency draws more and more attention, which gives a promising ...
Xuebo Zou   +3 more
doaj   +2 more sources

Radar Constant-Modulus Waveform Optimization for High-Resolution Range Profiling of Stationary Targets

open access: yesSensors, 2017
The high-resolution range (HRR) profile is an important target signature in many applications (e.g., automatic target recognition), and the radar HRR profiling performance is highly dependent on radar transmitted waveforms. In this paper, we consider the
Wenzhen Yue, Lin Li, Yu Xin, Tao Han
doaj   +2 more sources

Narrowband Radar Micromotion Targets Recognition Strategy Based on Graph Fusion Network Constructed by Cross-Modal Attention Mechanism

open access: yesRemote Sensing
In the domain of micromotion target recognition, target characteristics can be extracted through either broadband or narrowband radar echoes. However, due to technical limitations and cost constraints in acquiring broadband radar waveform data ...
Yuanjie Zhang   +7 more
doaj   +2 more sources

Deep-Learning for Radar: A Survey

open access: yesIEEE Access, 2021
A comprehensive and well-structured review on the application of deep learning (DL) based algorithms, such as convolutional neural networks (CNN) and long-short term memory (LSTM), in radar signal processing is given.
Zhe Geng   +3 more
doaj   +1 more source

Radar waveform design and processing using joint amplitude‐frequency‐phase modulation

open access: yesIET Radar, Sonar & Navigation, 2023
Radar waveform design is facing severe challenges with the development of radar countermeasure technology, such as easy access to intra‐pulse modulation property and poor anti‐recognition capabilities.
Tiehua Zhao   +4 more
doaj   +1 more source

Densely-Accumulated Convolutional Network for Accurate LPI Radar Waveform Recognition [PDF]

open access: yes, 2022
This paper presents a deep learning-based method to automatically recognize low probability of intercept (LPI) radar waveforms against diversified jamming attacks.
Kim, Dong-Seong   +6 more
core   +1 more source

Recognition of Radar Emitters with Agile Waveform Based on Hybrid Deep Neural Network and Attention Mechanism [PDF]

open access: yesRadioengineering, 2021
With the increasing complexity of the electromagnetic environment and the continuous development of radar technology, more and more modern digital programmable radars using agile waveform will appear in the future battlefield.
Y. Feng   +6 more
doaj  

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