Results 41 to 50 of about 48,680 (55)

Novel distinguisher for SM4 cipher algorithm based on deep learning

open access: yesTongxin xuebao, 2023
A method was proposed to construct a deep learning distinguisher model for large state block ciphers with large-block and long-key in view of the problem of high data complexity, time complexity and storage complexity of large state block cipher ...
Huijiao WANG   +3 more
doaj  

Outage performance analysis of IRS-aided cognitive satellite-terrestrial network

open access: yesTongxin xuebao, 2023
The outage performance of intelligent reflecting surface (IRS) aided cognitive satellite-terrestrial network was analyzed.Firstly, for the scenario where the point beam was enabled at the satellite to serve the earth station, and the IRS and non ...
Min LIN   +5 more
doaj  

Multi-UAV cooperative channel model for emergency communication

open access: yesTongxin xuebao, 2023
To carry out the system design and technology development for emergency communications, and greatly improve our ability of risk prevention and emergency disposal, the research on multi-unmanned aerial vehicle (multi-UAV) cooperative channel model for ...
Lu BAI   +4 more
doaj  

Steganographer identification of JPEG image based on feature selection and graph convolutional representation

open access: yesTongxin xuebao, 2023
Aiming at the problem that the feature dimension of JPEG image steganalysis is too high, which leads to the complexity of distance calculation between users and a decrease in the identification performance of the steganographer, a method for ...
Qianqian ZHANG   +4 more
doaj  

Distributed robust beamforming algorithm for spectral coexistence in satellite and high altitude platform networks

open access: yesTongxin xuebao, 2023
A distributed robust beamforming (BF) algorithm was proposed to improve spectrum efficiency for an integrated satellite and high altitude platform (HAP) network.Specifically, for the scenario where satellite network and HAP network adopted multicast and ...
Zining WANG   +4 more
doaj  

An Improved Jaccard Coefficient-Based Clustering Approach with Application to Diagnosis and RUL Estimation

open access: yesIET Signal Processing
Sample clustering techniques play a crucial role in the data-driven state evaluation of electromechanical equipment, and selecting an appropriate similarity measurement method for sample sets helps improve the clustering performance.
Xiaoqing Li   +4 more
doaj   +1 more source

Localization of Accessory Pathways in Patients with Wolff-Parkinson-White Syndrome Using Cross-Recurrence Plot of Precordial Leads

open access: yesمهندسی مخابرات جنوب
The non-invasive localization of accessory pathway (AP) in patients with Wolff-Parkinson-White (WPW) syndrome is typically performed upon physicians’ diagnoses based on observing their electrocardiogram (ECG) signals, which are not always the same ...
Sakineh Yahyazadeh   +3 more
doaj  

The Crossed-Dipole Antenna with Torang-shaped Parasitic Elements and Circular Polarization for GPS Application

open access: yesمهندسی مخابرات جنوب
This paper presents a circularly polarized (CP) printed crossed-dipole antenna for Global Positioning System (GPS) receptions in the L1 (1575 MHz) band. Its structure consists of two orthogonally printed dipoles, two integrated baluns to feed the dipoles,
Amir Siahcheshm
doaj  

Recombining Features of Frequency Domain and Location for Machine Recognition of Sign Language

open access: yesمهندسی مخابرات جنوب
In this article, a system for recognizing Persian sign language alphabets is presented. This system is able to recognize 32 hand postures for Persian alphabets and translate it into Persian text.
Sirous Tannaz
doaj  

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