Results 21 to 30 of about 416,260 (257)

Review of Recent Trends in Sensing Methodologies and AI Techniques for Non-Cooperative Aerial Target Recognition [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences
The proliferation of non-cooperative aerial targets, particularly low altitude-slow-speed small RCS drones, presents a complex challenge for airspace security.
Arvind Rawat   +5 more
doaj   +1 more source

Sparse Representation Denoising for Radar High Resolution Range Profiling [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2014
Radar high resolution range profile has attracted considerable attention in radar automatic target recognition. In practice, radar return is usually contaminated by noise, which results in profile distortion and recognition performance degradation. To deal with this problem, in this paper, a novel denoising method based on sparse representation is ...
Min Li   +3 more
openaire   +2 more sources

Abnormal Noise Suppression and Detail Protection for High-Resolution Range Profile of GM-APD Lidar

open access: yesIEEE Photonics Journal, 2021
The noise suppression of high-resolution range profile (HRRP) is a prerequisite for Geiger-mode of avalanche photodiodes (GM-APD) lidar to achieve precise sensing.
Xu Zhao   +5 more
doaj   +1 more source

High‐Resolution Range Profile Sequence Recognition Based on Transformer with Temporal–Spatial Fusion and Label Smoothing

open access: yesAdvanced Intelligent Systems, 2023
Radar high‐resolution range profile (HRRP) is widely used in radar automatic target recognition due to its advantages such as easy availability, convenient processing, and small storage space.
Xiaodan Wang   +4 more
doaj   +1 more source

Time-Domain Scattering Characteristics and Jamming Effectiveness in Corner Reflectors

open access: yesIEEE Access, 2021
The outboard corner reflectors are widely used as a countermeasure to radar tracking and detection. Therefore, it is essential to determine the composite time-domain scattering characteristics of the corner reflector and ship against the sea background ...
Ying Luo   +3 more
doaj   +1 more source

A NUFFT Based Step-frequency Chirp Signal High Resolution Imaging Algorithm and Target Recognition Algorithm

open access: yesLeida xuebao, 2015
Radar Automatic Target Recognition (RATR) is the key technique to be breaked through in the fuure development of intelligent weapon system. Compared to the 2-D SAR image target recognition, High Resolution Range Profile (HRRP) target recognition has the ...
Xiang Yin, Zhang Kai, Hu Cheng
doaj   +1 more source

HDT network: A high‐resolution range profile multi‐target detection and tracking method based on neural network

open access: yesIET Radar, Sonar & Navigation, 2023
In radar target detection and tracking tasks, the detection algorithm and data association algorithm are the primary technologies. The accuracy of detection, stability of tracking and processing speed are the key points to accomplishing effective high ...
Lin Sun   +3 more
doaj   +1 more source

Eigenvalue‐based ground target detection in high‐resolution range profiles [PDF]

open access: yesIET Radar, Sonar & Navigation, 2020
In this study, the authors address the problem of range‐distributed target detection in sequential high resolution range profiles (HRRPs). They propose a modified scaled largest eigenvalue detector for static target in homogenous ground clutter. A set of secondary data, which are free of target signal and have the same distribution as the clutter in ...
Yuan Jiang   +3 more
openaire   +1 more source

High Resolution Range Profile Sequence Recognition Based on ARTRBM

open access: yesDEStech Transactions on Computer Science and Engineering, 2018
In this paper, a novel stochastic neural network model named Attention based Recurrent Temporal Restricted Boltzmann Machine (ARTRBM) is proposed for the poor performance of the traditional HRRP recognition methods on high dimensional sequential data and noisy data.
Yi-fan ZHANG   +5 more
openaire   +2 more sources

Establishing an Apheresis Medicine Program in a Resource‐Constrained Setting: A 5‐Year Experience From Lagos, Nigeria

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Establishing a comprehensive apheresis medicine program in a resource‐constrained setting presents significant structural, financial, and logistical challenges. Despite the growing clinical importance of apheresis services globally, published experience from sub‐Saharan Africa remains sparse.
Folasade Adelekan‐Popoola   +4 more
wiley   +1 more source

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