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  Subjects -> ELECTRONICS (Total: 207 journals)
Showing 1 - 200 of 277 Journals sorted alphabetically
Acta Electronica Malaysia     Open Access  
Advanced Materials Technologies     Hybrid Journal   (Followers: 3)
Advances in Biosensors and Bioelectronics     Open Access   (Followers: 10)
Advances in Electrical and Electronic Engineering     Open Access   (Followers: 10)
Advances in Electronics     Open Access   (Followers: 101)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 9)
Advances in Microelectronic Engineering     Open Access   (Followers: 13)
Advances in Power Electronics     Open Access   (Followers: 44)
Advancing Microelectronics     Hybrid Journal  
American Journal of Electrical and Electronic Engineering     Open Access   (Followers: 28)
Annals of Telecommunications     Hybrid Journal   (Followers: 9)
APSIPA Transactions on Signal and Information Processing     Open Access   (Followers: 8)
Archives of Electrical Engineering     Open Access   (Followers: 16)
Australian Journal of Electrical and Electronics Engineering     Hybrid Journal  
Batteries     Open Access   (Followers: 9)
Batteries & Supercaps     Hybrid Journal   (Followers: 6)
Bell Labs Technical Journal     Hybrid Journal   (Followers: 30)
Bioelectronics in Medicine     Hybrid Journal  
Biomedical Instrumentation & Technology     Hybrid Journal   (Followers: 5)
BULLETIN of National Technical University of Ukraine. Series RADIOTECHNIQUE. RADIOAPPARATUS BUILDING     Open Access   (Followers: 2)
Bulletin of the Polish Academy of Sciences : Technical Sciences     Open Access   (Followers: 1)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 46)
China Communications     Full-text available via subscription   (Followers: 9)
Chinese Journal of Electronics     Hybrid Journal  
Circuits and Systems     Open Access   (Followers: 17)
Control Systems     Hybrid Journal   (Followers: 315)
ECTI Transactions on Computer and Information Technology (ECTI-CIT)     Open Access  
ECTI Transactions on Electrical Engineering, Electronics, and Communications     Open Access   (Followers: 2)
Edu Elektrika Journal     Open Access   (Followers: 1)
Electrica     Open Access  
Electronic Design     Partially Free   (Followers: 123)
Electronic Markets     Hybrid Journal   (Followers: 7)
Electronic Materials Letters     Hybrid Journal   (Followers: 4)
Electronics     Open Access   (Followers: 111)
Electronics and Communications in Japan     Hybrid Journal   (Followers: 10)
Electronics For You     Partially Free   (Followers: 105)
Electronics Letters     Hybrid Journal   (Followers: 26)
Elektronika ir Elektortechnika     Open Access   (Followers: 6)
Elkha : Jurnal Teknik Elektro     Open Access  
Emitor : Jurnal Teknik Elektro     Open Access   (Followers: 6)
Energy Harvesting and Systems     Hybrid Journal   (Followers: 4)
Energy Storage     Hybrid Journal   (Followers: 2)
Energy Storage Materials     Full-text available via subscription   (Followers: 5)
EPE Journal : European Power Electronics and Drives     Hybrid Journal  
EPJ Quantum Technology     Open Access   (Followers: 1)
EURASIP Journal on Embedded Systems     Open Access   (Followers: 10)
Facta Universitatis, Series : Electronics and Energetics     Open Access  
Foundations and Trends® in Communications and Information Theory     Full-text available via subscription   (Followers: 6)
Foundations and Trends® in Signal Processing     Full-text available via subscription   (Followers: 9)
Frequenz     Hybrid Journal   (Followers: 1)
Frontiers of Optoelectronics     Hybrid Journal   (Followers: 1)
IACR Transactions on Symmetric Cryptology     Open Access   (Followers: 1)
IEEE Antennas and Propagation Magazine     Hybrid Journal   (Followers: 110)
IEEE Antennas and Wireless Propagation Letters     Hybrid Journal   (Followers: 85)
IEEE Embedded Systems Letters     Hybrid Journal   (Followers: 54)
IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology     Hybrid Journal   (Followers: 3)
IEEE Journal of Emerging and Selected Topics in Power Electronics     Hybrid Journal   (Followers: 53)
IEEE Journal of the Electron Devices Society     Open Access   (Followers: 9)
IEEE Journal on Exploratory Solid-State Computational Devices and Circuits     Hybrid Journal   (Followers: 1)
IEEE Letters on Electromagnetic Compatibility Practice and Applications     Hybrid Journal   (Followers: 4)
IEEE Magnetics Letters     Hybrid Journal   (Followers: 7)
IEEE Nanotechnology Magazine     Hybrid Journal   (Followers: 42)
IEEE Open Journal of Circuits and Systems     Open Access   (Followers: 3)
IEEE Open Journal of Industry Applications     Open Access   (Followers: 3)
IEEE Open Journal of the Industrial Electronics Society     Open Access   (Followers: 3)
IEEE Power Electronics Magazine     Full-text available via subscription   (Followers: 80)
IEEE Pulse     Hybrid Journal   (Followers: 5)
IEEE Reviews in Biomedical Engineering     Hybrid Journal   (Followers: 23)
IEEE Solid-State Circuits Letters     Hybrid Journal   (Followers: 3)
IEEE Solid-State Circuits Magazine     Hybrid Journal   (Followers: 13)
IEEE Transactions on Aerospace and Electronic Systems     Hybrid Journal   (Followers: 383)
IEEE Transactions on Antennas and Propagation     Full-text available via subscription   (Followers: 77)
IEEE Transactions on Automatic Control     Hybrid Journal   (Followers: 66)
IEEE Transactions on Autonomous Mental Development     Hybrid Journal   (Followers: 8)
IEEE Transactions on Biomedical Engineering     Hybrid Journal   (Followers: 40)
IEEE Transactions on Broadcasting     Hybrid Journal   (Followers: 13)
IEEE Transactions on Circuits and Systems for Video Technology     Hybrid Journal   (Followers: 27)
IEEE Transactions on Consumer Electronics     Hybrid Journal   (Followers: 45)
IEEE Transactions on Electron Devices     Hybrid Journal   (Followers: 18)
IEEE Transactions on Geoscience and Remote Sensing     Hybrid Journal   (Followers: 232)
IEEE Transactions on Haptics     Hybrid Journal   (Followers: 6)
IEEE Transactions on Industrial Electronics     Hybrid Journal   (Followers: 75)
IEEE Transactions on Industry Applications     Hybrid Journal   (Followers: 46)
IEEE Transactions on Information Theory     Hybrid Journal   (Followers: 27)
IEEE Transactions on Learning Technologies     Full-text available via subscription   (Followers: 12)
IEEE Transactions on Power Electronics     Hybrid Journal   (Followers: 82)
IEEE Transactions on Services Computing     Hybrid Journal   (Followers: 4)
IEEE Transactions on Signal and Information Processing over Networks     Hybrid Journal   (Followers: 14)
IEEE Transactions on Software Engineering     Hybrid Journal   (Followers: 82)
IEEE Women in Engineering Magazine     Hybrid Journal   (Followers: 11)
IEEE/OSA Journal of Optical Communications and Networking     Hybrid Journal   (Followers: 16)
IEICE - Transactions on Electronics     Full-text available via subscription   (Followers: 11)
IEICE - Transactions on Information and Systems     Full-text available via subscription   (Followers: 5)
IET Cyber-Physical Systems : Theory & Applications     Open Access   (Followers: 1)
IET Energy Systems Integration     Open Access   (Followers: 1)
IET Microwaves, Antennas & Propagation     Hybrid Journal   (Followers: 38)
IET Nanodielectrics     Open Access  
IET Power Electronics     Hybrid Journal   (Followers: 62)
IET Smart Grid     Open Access   (Followers: 1)
IET Wireless Sensor Systems     Hybrid Journal   (Followers: 18)
IETE Journal of Education     Open Access   (Followers: 3)
IETE Journal of Research     Open Access   (Followers: 10)
IETE Technical Review     Open Access   (Followers: 12)
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems)     Open Access   (Followers: 3)
Industrial Technology Research Journal Phranakhon Rajabhat University     Open Access  
Informatik-Spektrum     Hybrid Journal   (Followers: 2)
Instabilities in Silicon Devices     Full-text available via subscription   (Followers: 1)
Intelligent Transportation Systems Magazine, IEEE     Full-text available via subscription   (Followers: 14)
International Journal of Advanced Research in Computer Science and Electronics Engineering     Open Access   (Followers: 18)
International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems     Open Access   (Followers: 12)
International Journal of Antennas and Propagation     Open Access   (Followers: 13)
International Journal of Applied Electronics in Physics & Robotics     Open Access   (Followers: 4)
International Journal of Computational Vision and Robotics     Hybrid Journal   (Followers: 5)
International Journal of Control     Hybrid Journal   (Followers: 11)
International Journal of Electronics     Hybrid Journal   (Followers: 6)
International Journal of Electronics and Telecommunications     Open Access   (Followers: 13)
International Journal of Granular Computing, Rough Sets and Intelligent Systems     Hybrid Journal   (Followers: 3)
International Journal of High Speed Electronics and Systems     Hybrid Journal  
International Journal of Hybrid Intelligence     Hybrid Journal  
International Journal of Image, Graphics and Signal Processing     Open Access   (Followers: 17)
International Journal of Microwave and Wireless Technologies     Hybrid Journal   (Followers: 11)
International Journal of Nano Devices, Sensors and Systems     Open Access   (Followers: 14)
International Journal of Nanoscience     Hybrid Journal   (Followers: 1)
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields     Hybrid Journal   (Followers: 4)
International Journal of Power Electronics     Hybrid Journal   (Followers: 26)
International Journal of Review in Electronics & Communication Engineering     Open Access   (Followers: 4)
International Journal of Sensors, Wireless Communications and Control     Hybrid Journal   (Followers: 12)
International Journal of Systems, Control and Communications     Hybrid Journal   (Followers: 4)
International Journal of Wireless and Microwave Technologies     Open Access   (Followers: 8)
International Transaction of Electrical and Computer Engineers System     Open Access   (Followers: 2)
JAREE (Journal on Advanced Research in Electrical Engineering)     Open Access  
Journal of Biosensors & Bioelectronics     Open Access   (Followers: 4)
Journal of Advanced Dielectrics     Open Access   (Followers: 1)
Journal of Artificial Intelligence     Open Access   (Followers: 15)
Journal of Circuits, Systems, and Computers     Hybrid Journal   (Followers: 4)
Journal of Computational Intelligence and Electronic Systems     Full-text available via subscription   (Followers: 1)
Journal of Electrical and Electronics Engineering Research     Open Access   (Followers: 39)
Journal of Electrical Bioimpedance     Open Access   (Followers: 2)
Journal of Electrical Bioimpedance     Open Access  
Journal of Electrical Engineering & Electronic Technology     Hybrid Journal   (Followers: 7)
Journal of Electrical, Electronics and Informatics     Open Access  
Journal of Electromagnetic Analysis and Applications     Open Access   (Followers: 8)
Journal of Electromagnetic Waves and Applications     Hybrid Journal   (Followers: 9)
Journal of Electronic Design Technology     Full-text available via subscription   (Followers: 7)
Journal of Electronic Science and Technology     Open Access   (Followers: 1)
Journal of Electronics (China)     Hybrid Journal   (Followers: 5)
Journal of Energy Storage     Full-text available via subscription   (Followers: 5)
Journal of Engineered Fibers and Fabrics     Open Access   (Followers: 2)
Journal of Field Robotics     Hybrid Journal   (Followers: 5)
Journal of Guidance, Control, and Dynamics     Hybrid Journal   (Followers: 204)
Journal of Information and Telecommunication     Open Access   (Followers: 1)
Journal of Intelligent Procedures in Electrical Technology     Open Access   (Followers: 3)
Journal of Low Power Electronics     Full-text available via subscription   (Followers: 10)
Journal of Low Power Electronics and Applications     Open Access   (Followers: 10)
Journal of Microelectronics and Electronic Packaging     Hybrid Journal   (Followers: 1)
Journal of Microwave Power and Electromagnetic Energy     Hybrid Journal   (Followers: 4)
Journal of Microwaves, Optoelectronics and Electromagnetic Applications     Open Access   (Followers: 10)
Journal of Nuclear Cardiology     Hybrid Journal   (Followers: 1)
Journal of Optoelectronics Engineering     Open Access   (Followers: 4)
Journal of Physics B: Atomic, Molecular and Optical Physics     Hybrid Journal   (Followers: 33)
Journal of Power Electronics     Hybrid Journal   (Followers: 3)
Journal of Power Electronics & Power Systems     Full-text available via subscription   (Followers: 12)
Journal of Semiconductors     Full-text available via subscription   (Followers: 5)
Journal of Sensors     Open Access   (Followers: 27)
Journal of Signal and Information Processing     Open Access   (Followers: 8)
Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer     Open Access  
Jurnal Rekayasa Elektrika     Open Access  
Jurnal Teknik Elektro     Open Access  
Jurnal Teknologi Elektro     Open Access  
Kinetik : Game Technology, Information System, Computer Network, Computing, Electronics, and Control     Open Access   (Followers: 1)
Majalah Ilmiah Teknologi Elektro : Journal of Electrical Technology     Open Access   (Followers: 2)
Metrology and Measurement Systems     Open Access   (Followers: 6)
Microelectronics and Solid State Electronics     Open Access   (Followers: 28)
Nanotechnology, Science and Applications     Open Access   (Followers: 6)
Nature Electronics     Hybrid Journal   (Followers: 2)
Networks: an International Journal     Hybrid Journal   (Followers: 4)
Open Electrical & Electronic Engineering Journal     Open Access  
Open Journal of Antennas and Propagation     Open Access   (Followers: 9)
Paladyn. Journal of Behavioral Robotics     Open Access   (Followers: 1)
Power Electronics and Drives     Open Access   (Followers: 2)
Problemy Peredachi Informatsii     Full-text available via subscription  
Progress in Quantum Electronics     Full-text available via subscription   (Followers: 8)
Radiophysics and Quantum Electronics     Hybrid Journal   (Followers: 2)
Recent Advances in Communications and Networking Technology     Hybrid Journal   (Followers: 3)
Recent Advances in Electrical & Electronic Engineering     Hybrid Journal   (Followers: 11)
Research & Reviews : Journal of Embedded System & Applications     Full-text available via subscription   (Followers: 6)
Revue Méditerranéenne des Télécommunications     Open Access   (Followers: 1)
Security and Communication Networks     Hybrid Journal   (Followers: 2)
Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of     Hybrid Journal   (Followers: 57)
Semiconductors and Semimetals     Full-text available via subscription   (Followers: 1)
Sensing and Imaging : An International Journal     Hybrid Journal   (Followers: 2)
Solid State Electronics Letters     Open Access  
Solid-State Electronics     Hybrid Journal   (Followers: 9)
Superconductor Science and Technology     Hybrid Journal   (Followers: 3)
Synthesis Lectures on Power Electronics     Full-text available via subscription   (Followers: 3)
Technical Report Electronics and Computer Engineering     Open Access  
TELE     Open Access  
Telematique     Open Access  
TELKOMNIKA (Telecommunication, Computing, Electronics and Control)     Open Access   (Followers: 12)
Transactions on Cryptographic Hardware and Embedded Systems     Open Access   (Followers: 4)

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Similar Journals
Journal Cover
International Journal of Electronics and Telecommunications
Journal Prestige (SJR): 0.216
Citation Impact (citeScore): 1
Number of Followers: 13  

  This is an Open Access Journal Open Access journal
ISSN (Print) 0867-6747 - ISSN (Online) 2300-1933
Published by Polska Akademia Nauk Homepage  [10 journals]
  • Detection of Obstructive Sleep Apnea from ECG Signal using SVM based Grid

    • Authors: Valavan Karunakaran, Manoj Saranr, Abishek S, Gokull Vijay T G, Vojaswwin A P, Rolant Gini J, Ramachandran K I
      Pages: 5 - 12
      Abstract: Obstructive Sleep Apnea is one common form of sleep apnea and is now tested by means of a process called Polysomnography which is time-consuming, expensive and also requires a human observer throughout the study of the subject which makes it inconvenient and new detection techniques are now being developed to overcome these difficulties. Heart rate variability has proven to be related to sleep apnea episodes and thus the features from the ECG signal can be used in the detection of sleep apnea. The proposed detection technique uses Support Vector Machines using Grid search algorithm and the classifier is trained using features based on heart rate variability derived from the ECG signal. The developed system is tested using the dataset and the results show that this classification system can recognize the disorder with an accuracy rate of 89%. Further, the use of the grid search algorithm has made this system a reliable and an accurate means for the classification of sleep apnea and can serve as a basis for the future development of its screening.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Design and Analysis of An Improved AODV Protocol Based on Clustering
           Approach for Internet of Vehicles (AODV-CD)

    • Authors: Sahar Ebadinezhad
      Pages: 13 - 22
      Abstract: The Internet of Vehicles (IoVs) has become a vital research area in order to enhance passenger and road safety, increasing traffic efficiency and enhanced reliable connectivity. In this regard, for monitoring and controlling the communication between IoVs, routing protocols are deployed. Frequent changes that occur in the topology often leads to major challenges in IoVs, such as dynamic topology changes, shortest routing paths and also scalability. One of the best solutions for such challenges is “clustering”. This study focuses on IoVs’ stability and to create an efficient routing protocol in dynamic environment. In this context, we proposed a novel algorithm called Cluster-based enhanced AODV for IoVs (AODV-CD) to achieve stable and efficient clustering for simplifying routing and ensuring quality of service (QoS). Our proposed protocol enhances the overall network throughput and delivery ratio, with less routing load and less delay compared to AODV. Thus, extensive simulations are carried out in SUMO and NS2 for evaluating the efficiency of the AODV-CD that is superior to the classic AODV and other recent modified AODV algorithms. 
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Influence of multiple cleaning on the detection capabilities of ISFET

    • Authors: Kinga Kondracka, Piotr Firek, Marta Grodzik, Maciej Szmidt, Ewa Sawosz – Chwalibóg, Jan Szmidt
      Pages: 23 - 28
      Abstract: The method of cleaning the ISFET structures after application of a biological substance was developed. There are few references in the literature to cleaning methods of this type of structure for biological applications, but they are relatively complex and difficult to automate. We decided to use resources commonly available in technological laboratories and methods that could be relatively easily automated, which would enable the full potential of ISFET transistors to be used. During the experiments, both acetone and deionized water were tested. The cleaning method was modified and it was checked whether it is possible to use such a method on one transistor more than once and how it affects the transistor's detection capabilities. We managed to obtain an effective method of cleaning ISFETs from biological substances. This method does not allow for obtaining exactly the same state as the original state of the transistor, but it ensures its correct operation and determining the influence of the tested biological substance on the transistor based on the results.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Performance Comparison of Stacked Dual-Metal Gate Engineered Cylindrical
           Surrounding Double-Gate MOSFET

    • Authors: Abha Dargar, Viranjay M. Srivastava
      Pages: 29 - 34
      Abstract: In this research work, a Cylindrical Surrounding Double-Gate (CSDG) MOSFET design in a stacked-Dual Metal Gate (DMG) architecture has been proposed to incorporate the ability of gate metal variation in channel field formation. Further, the internal gate's threshold voltage (VTH1) could be reduced compared to the external gate (VTH2) by arranging the gate metal work-function in Double Gate devices. Therefore, a device design of CSDG MOSFET has been realized to instigate the effect of Dual Metal Gate (DMG) stack architecture in the CSDG device. The comparison of device simulation shown optimized electric field and surface potential profile. The gradual decrease of metal work function towards the drain also improves the Drain Induced Barrier Lowering (DIBL) and subthreshold characteristics. The physics-based analysis of gate stack CSDG MOSFET that operates in saturation involving the analogy of cylindrical dual metal gates has been considered to evaluate the performance improvements. The insights obtained from the results using the gate-stack dual metal structure of CSDG are quite promising, which can serve as a guide to further reduce the threshold voltage roll-off, suppress the Hot Carrier Effects (HCEs) and Short Channel Effects (SCEs).
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Markov Model of Cyber Attack Life Cycle Triggered by Software

    • Authors: Romuald Hoffmann
      Pages: 35 - 41
      Abstract: Software vulnerability life cycles illustrate changes in detection processes of software vulnerabilities during using computer systems. Unfortunately, the detection can be made by cyber-adversaries and a discovered software vulnerability may be consequently exploited for their own purpose. The vulnerability may be exploited by cyber-criminals at any time while it is not patched. Cyber-attacks on organizations by exploring vulnerabilities are usually conducted through the processes divided into many stages. These cyber-attack processes in literature are called cyber-attack live cycles or cyber kill chains. The both type of cycles have their research reflection in literature but so far, they have been separately considered and modeled. This work addresses this deficiency by proposing a Markov model which combine a cyber-attack life cycle with an idea of software vulnerability life cycles. For modeling is applied homogeneous continuous time Markov chain theory.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Mobility of radars on the today’s battlefield

    • Authors: Stanislaw Czeszejko
      Pages: 43 - 48
      Abstract: Abstract—In this article the author makes an attempt
      to characterize the main factor – mobility – which is to be taken into consideration while designing the ground radar component (passive and active radars) of the Air Defense systems in order to enable them to operate on the contemporary battlefield. He presents the latest theoretical views on the relationship between the usage of anti-radiation missiles and the mobility of the passive and active radars as the key ability to protect them against such weapons. In particular the author emphasizes that the anti-radiation missiles present nowadays the biggest threat for the effective Air Defense systems, which are today characterized by
      a high complexity degree. He also stresses the need to combine
      the radars, both passive and active, into one system allowing for the streamlining of their work parameters and thus ensuring their complex usage. The gaining of those capabilities shall guarantee that the parameters of the air surveillance radar area can be defined effectively.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Linearized 9-Bit Hybrid LBDD PWM Modulator for Digital Class-BD Amplifier

    • Authors: Wojciech Kołodziejski, Stanisław Kuta
      Pages: 49 - 57
      Abstract: The paper presents an original architecture and
      implementation of 9-bit Linearized Pulse Width Modulator
      (LPWM) for Class-BD amplifier, based on the hybrid method
      using STM32 microcontroller and Programmable Tapped Delay
      Line (PTDL). The analog input signals are converted into 12-bit
      PCM signals, then are directly transformed into 32-bit LBDD
      DPWM data of the pulse-edge locations within n-th period of the
      switching frequency, next requantized to the 9-bit digital
      outputs, and finally converted into the two physical trains of 1-bit
      PWM signals, to control the output stage of the Class-BD audio
      amplifier. The hybrid 9-bit quantizer converts 6 MSB bits using
      counter method, based on the peripherals of STM32
      microcontroller, while the remaining 3 LSB bits - using a method
      based on the PTDL. In the paper extensive verification of
      algorithm and circuit operation as well as simulation in
      MATLAB and experimental results of the proposed 9-bit hybrid
      LBDD DPWM circuit have been performed. It allows to attain
      SNR of 80 dB and THD about 0,3% within the audio baseband.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Approaches to evaluating the quality of masking noise interference

    • Authors: Nurzhigit Smailov, Askhat Batyrgaliev, Ainur Akhmediyarova, Nurgul Seilova, Madina Koshkinbayeva, Moldir Baigulbayeva, Ryszard Romaniuk, Maxat Orunbekov, Kabdoldina Assem, Andrzej Kotyra
      Pages: 59 - 64
      Abstract: The paper discusses the characteristics of spatial electromagnetic noise generators, as well as the formation of a broadband noise signal. A number of well-known methods for assessing the quality of masking noise interference and the approaches used in them have been described. Approaches to the measurement of masking noise were also determined in assessing their quality. In conclusion, additional methods are proposed for assessing the quality of masking noises, such as searching for correlation of noise in different frequency sub-bands and using statistical and (or) graphical methods (tests) for randomness.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Developing the system of collecting, storing and processing information
           from solar collectors

    • Authors: Ainur Kozbakova, Waldemar Wojcik, Yedilkhan Yedilhan Amirgaliyev
      Pages: 65 - 70
      Abstract: В данной статье представлена новая методика управления системой сбора, хранения и обработки информации от солнечных коллекторов, которая может применяться для обогрева промышленных и бытовых отсеков для горячего водоснабжения. Наиболее выгодное использование солнечных коллекторов в промышленности - замена помех от человека сетями беспроводных датчиков. Стандартная система солнечного коллектора потребляет в среднем 30% тепла из-за плохого управления и конфигурации. Наша система контроля и управления позволяет повысить производительность обогрева производственных и бытовых помещений с помощью солнечного коллектора для горячего водоснабжения.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Spectrum Aliasing Does not Occur in Case of Ideal Signal Sampling

    • Authors: Andrzej Marek Borys
      Pages: 71 - 77
      Abstract: A new model of ideal signal sampling operation is developed in this paper. This model does not use the Dirac comb in an analytical description of sampled signals in the continuous time domain. Instead, it utilizes functions of a continuous time variable, which are introduced in this paper: a basic Kronecker time function and a Kronecker comb (that exploits the first of them). But, a basic principle behind this model remains the same; that is it also a multiplier which multiplies a signal of a continuous time by a comb. Using a concept of a signal object (or utilizing equivalent arguments) presented elsewhere, it has been possible to find a correct expression describing the spectrum of a sampled signal so modelled. Moreover, the analysis of this expression showed that aliases and folding effects cannot occur in the sampled signal spectrum, provided that the signal sampling is performed ideally.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Spectrum Aliasing Does Occur Only in Case of Non-ideal Signal Sampling

    • Authors: Andrzej Marek Borys
      Pages: 79 - 85
      Abstract: In this paper, it has been shown that the spectrum aliasing and folding effects occur only in the case of non-ideal signal sampling. When the duration of the signal sampling is equal to zero, these effects do not occur at all. In other words, the absolutely necessary condition for their occurrence is just a nonzero value of this time. Periodicity of the sampling process plays a secondary role.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Fault tolerant radiation monitoring system using wireless sensor and actor
           network in a nuclear facility

    • Authors: Mohamed Yehia Habash, Nabil Mohamed Abd Elfatah Ayad, Abd Elhady Abd Elazim Ammar
      Pages: 87 - 93
      Abstract: In nuclear facilities, the reading of the sensors is very important in the assessments of the system state. The existence of an abnormal state could be caused by a failure in the sensor itself instead of a failure in the system. So, being unable to identify the main cause of the “abnormal state” and take proper actions may end in unnecessary shutdown for the nuclear facility that may have expensive economic consequences. That is why, it is extremely important for a supervision and control system to identify the case where the failure in the sensor is the main cause for the existence of an abnormal state. In this paper, a system based on a wireless sensor network is proposed to monitor the radiation levels around and inside a nuclear facility. A new approach for validating the sensor readings is proposed and investigated using the Castalia simulator.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Millimeter Wave Beamforming Training: A Reinforcement Learning Approach

    • Authors: Ehab Mahmoud Mohamed
      Pages: 95 - 102
      Abstract: Beamforming training (BT) is considered as an essential process to accomplish the communications in the millimeter wave (mmWave) band, i.e., 30 ~ 300 GHz. This process aims to find out the best transmit/receive antenna beams to compensate the impairments of the mmWave channel and successfully establish the mmWave link. Typically, the mmWave BT process is highly-time consuming affecting the overall throughput and energy consumption of the mmWave link establishment. In this paper, a machine learning (ML) approach, specifically reinforcement learning (RL), is utilized for enabling the mmWave BT process by modeling it as a multi-armed bandit (MAB) problem with the aim of maximizing the long-term throughput of the constructed mmWave link. Based on this formulation, MAB algorithms such as upper confidence bound (UCB), Thompson sampling (TS), epsilon-greedy (e-greedy), are utilized to address the problem and accomplish the mmWave BT process. Numerical simulations confirm the superior performance of the proposed MAB approach over the existing mmWave BT techniques.     
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Zero-Suppression Trigger Mode for GEM detector measurement system

    • Authors: Piotr Kolasinski, Krzysztof Pozniak, Andrzej Wojenski, Pawel Linczuk, Rafal Krawczyk, Michal Gaska, Wojciech Zabolotny, Grzegorz Kasprowicz, Maryna Chernyshova, Tomasz Czarski
      Pages: 103 - 108
      Abstract: A novel approach to a trigger mode in the Gas
      Electron Multiplier (GEM) detector readout system is presented.
      The system is already installed at WEST tokamak. The article
      briefly describes the architecture of the GEM detector and the
      measurement system. Currently the system can work in two
      trigger modes: Global Trigger and Local Trigger. All trigger processing
      blocks are parts of the Charge Signal Sequencer module
      which is responsible for transferring data to the PC. Therefore,
      the article presents structure of the Sequencer with details about
      basic blocks, theirs functionality and output data configuration.
      The Sequencer with the trigger algorithms is implemented in
      an FPGA chip from Xilinx. Global Trigger, which is a default
      mode for the system, is not efficient and has limitations due to
      storing much data without any information. Local trigger which
      is under tests, removes data redundancy and is constructed to
      send only valid data, but the rest of the software, especially on the
      PC side, is still under development. Therefore authors propose
      the trigger mode which combines functionality of two existing
      modes. The proposed trigger, called Zero Suppression Trigger, is
      compatible with the existing interfaces of the PC software, but
      is also capable to verify and filter incoming signals and transfer
      only recognized events. The results of the implementation and
      simulation are presented.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Soft X-ray diagnostic system upgrades and data quality monitoring features
           for tokamak usage

    • Authors: Andrzej Wojeński, Pawel Linczuk, Piotr Kolasinski, Maryna Chernyshova, Didier Mazon, Grzegorz Kasprowicz, Krzysztof T. Pozniak, Michal Gaska, Tomasz Czarski, Rafal Krawczyk
      Pages: 109 - 114
      Abstract: The validation of the measurements quality after on-site diagnostic system installation is necessary in order to provide reliable data and output results. This topic is often neglected or not discussed in detail regarding measurement systems. In the paper recently installed system for soft X-ray measurements is described in introduction. The system is based on multichannel GEM detector and the data is collected and sent in special format to PC unit for further postprocessing. The unique feature of the system is the ability to compute final data based on raw data only. The raw data is selected upon algorithms by FPGA units. The FPGAs are connected to the analog front-end of the system and able to register all of the signals and collect the useful data. The interface used for data streaming is PCIe Gen2 x4 for each FPGA, therefore high throughput of the system is ensured. The paper then discusses the properties of the installation environment of the system and basic functionality mode. New features are described, both in theoretical and practical approach. New modes correspond to the data quality monitoring features implemented for the system, that provide extra information to the postprocessing stage and final algorithms. In the article is described also additional mode to perform hardware simulation of signals in a tokamak-like environment using FPGAs. The summary describes the implemented features of the data quality monitoring features and additional modes of the system.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Measurement capabilities upgrade of GEM soft X-ray measurement system for
           hot plasma diagnostics

    • Authors: Paweł Linczuk, Andrzej Wojeński, Piotr Kolasiński, Rafał Krawczyk, Wojciech Zabołotny, Krzystof Poźniak, Maryna Chernyshova, Tomasz Czarski, Michał Gąska, Grzegorz Kasprowicz, Karol Malinowski
      Pages: 115 - 120
      Abstract: The paper presents improvements of the developed system for hot plasma radiation measurement in the soft X-ray range based on a Gas Electron Multiplier (GEM) detector. Scope of work consists of a new solution for handling hardware time-synchronization with tokamak systems needed for better synchronization with other diagnostics and measurement quality. The paper describes the support of new modes of triggering on PC-side. There are communication and data path overview in the system. The new API is described, which provide separate channels for data and control and is more robust than the earlier solution. Work concentrates on stability and usability improvements of the implemented device providing better usage for end-user.

      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Design of sparse FIR filters with low group delay

    • Authors: Jacek Konopacki
      Pages: 121 - 126
      Abstract: The aim of the work is to present the method for designing sparse FIR filters with very low group delay and approximately linear-phase in the passband. Significant reduction of the group delay, e.g. several times in relation to the linear phase filter, may cause the occurrence of undesirable overshoot in the magnitude frequency response. The method proposed in this work consists of two stages. In the first stage, FIR filter with low group delay is designed using minimax constrained optimization that provides overshoot elimination. In the second stage, the same process is applied iteratively to reach sparse solution. Design examples demonstrate the effectiveness of the proposed method.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Development and analysis of symmetric encryption algorithm Qamal based on
           a substitution-permutation network

    • Authors: Rustem G. Biyashev, Nursulu A. Kapalova, Dilmuhanbet S. Dyusenbayev, Kunbolat T. Algazy, waldemar Wójcik, Andrzej Smolarz
      Pages: 127 - 132
      Abstract: This paper represents a developed cryptographic information protection algorithm based on an substitution-permutation network. We describe the cryptographic transformations used in the developed algorithm. One of the features of the algorithm is the simplicity of its modification with regard to different security levels. The algorithm uses a pre-developed S-box tested against differential and linear cryptanalysis. The S-box is consistent with the one of known standards AES and GOST R 34.12-2015. We provide the findings of an avalanche-effect investigation and statistical properties of cipher texts. The algorithm actually meets the avalanche-effect criterion even after the first round.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
  • Measurement of linear parameters of dielectric filaments based on the
           corona discharge

    • Authors: Aliya Sovetzhanovna Tergeussizova, Shabden Abuovich Bakhtaev, Bekmurza Husainovich Aitchanov, Gulzada Dauletbekovna Mussapirova, Aynur Zhumakhanovna Toigozhinova, Waldemar Wójcik, Ryszard Romaniuk
      Pages: 133 - 138
      Abstract: On the basis of a unipolar corona discharge, a method of non-contact and continuous measurement of linear parameters of thin and ultra-thin dielectric fibres and optical fibres (10 to 125 microns) in the process of their manufacture was developed. The measurement method differs from the commonly known methods by high accuracy and reliability of measurement and resistance to changes in the electrical characteristics of the discharge gap and the state of ambient air.
      PubDate: 2021-01-31
      Issue No: Vol. 67, No. 1 (2021)
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