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Method for Changepoint Detection With Sample Size Accumulation During Radio Equipment Operation 无线电设备运行过程中随样本量累积的变化点检测方法
IF 0.7
Electrical Control and Communication Engineering Pub Date : 2020-01-01 DOI: 10.2478/ecce-2020-0004
O. Solomentsev, M. Zaliskyi, T. Herasymenko, Y. Petrova
{"title":"Method for Changepoint Detection With Sample Size Accumulation During Radio Equipment Operation","authors":"O. Solomentsev, M. Zaliskyi, T. Herasymenko, Y. Petrova","doi":"10.2478/ecce-2020-0004","DOIUrl":"https://doi.org/10.2478/ecce-2020-0004","url":null,"abstract":"Abstract The operation system determines the efficiency of the intended use of radio equipment. The operation system includes radio equipment, documentation, operational resources, personnel, processes, data processing algorithms, etc. The operation process is associated with conditions of priori uncertainty of models, parameters, external factors, etc. The main element for monitoring is technical condition of radio equipment. In a general case, this condition can deteriorate. The problems of technical condition deterioration analysis can be considered in terms of changepoint study. The present paper concentrates on the problem of synthesis and analysis of method for changepoint detection during radio equipment operation. The detection algorithm is constructed based on Neyman–Pearson criterion with sample size accumulation. During algorithm synthesis the thresholds were calculated according to Bellman’s approach. The problem of synthesis and analysis was solved by two methods: analytically and using statistical modelling. The efficiency measures for this algorithm are the probability of correct detection and mean time of decision making. The proposed algorithm has advantages in mean time of decision making compared with CUSUM detection method.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"16 1","pages":"23 - 29"},"PeriodicalIF":0.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42601222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Efficient Orthogonal Bicomplex Bilinear DSP Algorithm Design 高效正交双复数双线性DSP算法设计
IF 0.7
Electrical Control and Communication Engineering Pub Date : 2020-01-01 DOI: 10.2478/ecce-2020-0005
Z. Valkova-Jarvis, D. Mihaylova, V. Stoynov
{"title":"Efficient Orthogonal Bicomplex Bilinear DSP Algorithm Design","authors":"Z. Valkova-Jarvis, D. Mihaylova, V. Stoynov","doi":"10.2478/ecce-2020-0005","DOIUrl":"https://doi.org/10.2478/ecce-2020-0005","url":null,"abstract":"Abstract The present paper describes the development of a new technique for designing orthogonal bicomplex Digital Signal Processing (DSP) algorithms. In contrast to those previously reported on, this novel method is of universal application while being unaffected by either the type or the order of the real digital processing algorithm employed as a prototype. The proposed technique builds on Watanabe and Nishihara’s complex orthogonal transformation, and converts real or complex orthogonal transfer functions into bicomplex orthogonal ones. In this study, the new technique is applied to the design and testing of orthogonal bilinear bicomplex filters with a canonical number of elements, the main advantage of which is that they are several times lower in order. In this way, bilinear bicomplex orthogonal transfer functions are made up of real coefficient ones of the fourth-order, thereby reducing the order of the filter by a factor of four. The experiments demonstrate that the properties of the prototype filter are acquired by the bicomplex orthogonal filters, irrespective of the prototype being complex or real in nature.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"16 1","pages":"30 - 36"},"PeriodicalIF":0.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47870049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Design of a Compact CPW-Fed Monopole Antenna With Asymmetrical Hexagonal Slot Loaded Ground Structure for C/X/Ku Band Applications C/X/Ku频段紧凑型CPW馈电单极天线的设计
IF 0.7
Electrical Control and Communication Engineering Pub Date : 2020-01-01 DOI: 10.2478/ecce-2020-0003
A. K. Dwivedi, Brijesh Mishra, Vivek Singh, Pramod Narayan Tripathi, A. Singh
{"title":"Design of a Compact CPW-Fed Monopole Antenna With Asymmetrical Hexagonal Slot Loaded Ground Structure for C/X/Ku Band Applications","authors":"A. K. Dwivedi, Brijesh Mishra, Vivek Singh, Pramod Narayan Tripathi, A. Singh","doi":"10.2478/ecce-2020-0003","DOIUrl":"https://doi.org/10.2478/ecce-2020-0003","url":null,"abstract":"Abstract A novel design of ultra-wideband CPW-fed compact monopole patch antenna is presented in the article. The size of the antenna is 22 × 18 × 1.6 mm and it operates well over an ultra-wideband frequency range 4.86–13.66 GHz (simulated) and 4.93–13.54 GHz (measured) covering C, X and partial Ku band applications. The proposed design consists of a defected ground plane and U-shape radiating patch along with two square shape parasitic patches in order to achieve the ultra-wideband (UWB) operations. The performance matrix is validated through measured results that indicate the wide impedance bandwidth (93.2 %) with maximum gain of 4 dBi with nearly 95 % of maximum radiation efficiency; moreover, the 3D gain pattern manifests approximately omni-directional pattern of the proposed design. The prototype has been modelled using HFSS (High Frequency Structure Simulator-18) by ANSYS, fabricated and tested using vector network analyser E5071C.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"16 1","pages":"15 - 22"},"PeriodicalIF":0.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48231119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
A Novel and Compact Circularly Polarized Antenna for 5G Wireless Local Area Network Application 一种适用于5G无线局域网的新型紧凑圆极化天线
IF 0.7
Electrical Control and Communication Engineering Pub Date : 2020-01-01 DOI: 10.2478/ecce-2020-0007
Swetha Ravikanti, L. Anjaneyulu
{"title":"A Novel and Compact Circularly Polarized Antenna for 5G Wireless Local Area Network Application","authors":"Swetha Ravikanti, L. Anjaneyulu","doi":"10.2478/ecce-2020-0007","DOIUrl":"https://doi.org/10.2478/ecce-2020-0007","url":null,"abstract":"Abstract The research paper presents a novel and compact circularly polarized (CP) antenna for a 5G wireless local area network (WLAN) application. It consists of a circular patch and a coaxial probe feed radiator. Circular polarization (CP) is attained by symmetric semi-circular slits of radius r1 at three edges of a circular path with 90° in direction, and the other semicircular slit is of different radius r2. To improve the impedance bandwidth and axial ratio, the radius of the fourth semicircular slit on circular patch antenna is varied. The design is verified by fabricating a compact antenna of 0.65λ0 × 0.65λ0 × 0.01λ0. The measured 10 dB impedance bandwidth is 3.9 % (5.36–5.56 GHz), 3-dB axial ratio bandwidth is 1.1 % (5.43–5.49 GHz) and gain of 6.6 dBi at resonant frequency of 5.37 GHz is obtained. The authors also describe two-dimensional radiation patterns of azimuth and elevation plane surface current distribution of the CP patch, VSWR < 2. The proposed CP antenna is suitable for the 5G WLAN application. The proposed design is compared with various techniques in literature and tabulated. The measured results are also discussed and they are in good agreement with simulated results.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"16 1","pages":"44 - 50"},"PeriodicalIF":0.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42383991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Wireless Sensor Networks: Towards Resilience Against Weather-Based Disruptions 无线传感器网络:对基于天气的中断的弹性
IF 0.7
Electrical Control and Communication Engineering Pub Date : 2019-12-01 DOI: 10.2478/ecce-2019-0011
Julius Skirelis, A. Patlins, N. Kunicina, A. Romānovs, A. Zabasta
{"title":"Wireless Sensor Networks: Towards Resilience Against Weather-Based Disruptions","authors":"Julius Skirelis, A. Patlins, N. Kunicina, A. Romānovs, A. Zabasta","doi":"10.2478/ecce-2019-0011","DOIUrl":"https://doi.org/10.2478/ecce-2019-0011","url":null,"abstract":"Abstract The article discusses vulnerability of wireless sensors networks to weather-based disruptions considering the opinions of different experts published in a range of scientific materials. The introduction provides a brief overview of wireless signals in real world conditions focusing on how weather affects signals (rain, fog and clouds, snow, hail, lightning, wind, bodies of water, trees and physical obstruction). Information about the effects of weather on wireless sensor networks using Free Space Optical / Radio Frequency (FSO/RF) communication is then provided. Finally, the impact of weather conditions on MANET routing protocols is considered theoretically, and experimental simulations are performed by comparing the sustainability of different protocols to different weather conditions. After analysis of experiment results, ideas on how to decrease vulnerability of wireless networks to weather-based disruptions are discussed.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"15 1","pages":"79 - 87"},"PeriodicalIF":0.7,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45483340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Free and Open Source Software Codes for Antenna Design: Preliminary Numerical Experiments 用于天线设计的自由和开源软件代码：初步数值实验
IF 0.7
Electrical Control and Communication Engineering Pub Date : 2019-12-01 DOI: 10.2478/ecce-2019-0012
A. Fedeli, C. Montecucco, G. Gragnani
{"title":"Free and Open Source Software Codes for Antenna Design: Preliminary Numerical Experiments","authors":"A. Fedeli, C. Montecucco, G. Gragnani","doi":"10.2478/ecce-2019-0012","DOIUrl":"https://doi.org/10.2478/ecce-2019-0012","url":null,"abstract":"Abstract In both industrial and scientific frameworks, free and open source software codes create novel and interesting opportunities in computational electromagnetics. One of the possible applications, which usually requires a large set of numerical tests, is related to antenna design. Despite the well-known advantages offered by open source software, there are several critical points that restrict its practical application. First, the knowledge of the open source programs is often limited. Second, by using open source packages it is sometimes not easy to obtain results with a high level of confidence, and to integrate open source modules in the production workflow. In the paper, a discussion about open source programs for antenna design is carried out. Furthermore, some preliminary numerical tests are presented and discussed, also in comparison with those obtained by means of commercial software. Results are related to the simulation of various typologies of antennas in order to assess the capabilities of open source software in different configurations. The presented comparisons show that, despite the abovementioned limitations, the examined open source packages have similar performance with respect to their commercial counterparts.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"15 1","pages":"88 - 95"},"PeriodicalIF":0.7,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47268883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Real-Time Monitoring & Adaptive Protection of Power Transformer to Enhance Smart Grid Reliability 电力变压器实时监测与自适应保护，提高智能电网可靠性
IF 0.7
Electrical Control and Communication Engineering Pub Date : 2019-12-01 DOI: 10.2478/ecce-2019-0014
M. Raichura, N. Chothani, D. Patel
{"title":"Real-Time Monitoring & Adaptive Protection of Power Transformer to Enhance Smart Grid Reliability","authors":"M. Raichura, N. Chothani, D. Patel","doi":"10.2478/ecce-2019-0014","DOIUrl":"https://doi.org/10.2478/ecce-2019-0014","url":null,"abstract":"Abstract Power transformer is one of the most important pieces of equipment in the grid to reliably and efficiently transmit power to the consumers. Asset management and protection are the best concepts for prolongation of transformer lifespan as well as for the increase of grid reliability. This article presents electrical and non-electrical parameter-based power transformer monitoring and protection. Various data such as core flux, age of asset, heat generation, current harmonics and temperature are monitored in real time and processed accordingly to enhance the working capability of the transformer. The proposed scheme is successfully tested on 15 kVA laboratory transformer using Arm CORTEX-M4 processor. A Fitness Function (Ff) is estimated from the collected data to examine the working condition of the transformer. Moreover, voltage, current and power-based inrush detection as well as Adaptive Power Differential Protection (APDP) are applied to protect the transformer against fault. The hardware implementation and result validation prove the effectiveness of the proposed scheme in enhancing reliability of the distribution grid.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"15 1","pages":"104 - 112"},"PeriodicalIF":0.7,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69199531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Adaptive Traction Drive Control Algorithm for Electrical Energy Consumption Minimisation of Autonomous Unmanned Aerial Vehicle 自主无人机电能消耗最小化的自适应牵引驱动控制算法
IF 0.7
Electrical Control and Communication Engineering Pub Date : 2019-12-01 DOI: 10.2478/ecce-2019-0009
A. Korneyev, M. Gorobetz, Ivars Alps, L. Ribickis
{"title":"Adaptive Traction Drive Control Algorithm for Electrical Energy Consumption Minimisation of Autonomous Unmanned Aerial Vehicle","authors":"A. Korneyev, M. Gorobetz, Ivars Alps, L. Ribickis","doi":"10.2478/ecce-2019-0009","DOIUrl":"https://doi.org/10.2478/ecce-2019-0009","url":null,"abstract":"Abstract The paper aims at researching and developing an adaptive control system algorithm and its implementation and integration in the control system of the existing unmanned aerial vehicle (UAV). The authors describe the mathematical model of UAV and target function for energy consumption minimisation and possible searching algorithms for UAV optimal control from an energy efficiency perspective. There are two main goals: to minimise energy consumption and to develop and investigate an adaptive control algorithm for UAV traction drive in order to increase energy efficiency. The optimal control algorithm is based on two target function values, when comparing and generating corresponding control signals. The main advantage of the proposed algorithm is its unification and usability in any electrical UAV with a different number of traction drives, different or variable mass and other configuration differences without any initial manual setup. Any electric UAV is able to move with maximal energy efficiency using the proposed algorithm.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"15 1","pages":"62 - 70"},"PeriodicalIF":0.7,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46849275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A 79 dBΩ 1.2 GHz Low-Noise Single-Ended CMOS Transimpedance Amplifier for High-Performance OTDR Applications 用于高性能OTDR应用的79 dBΩ 1.2 GHz低噪声单端CMOS跨阻放大器
IF 0.7
Electrical Control and Communication Engineering Pub Date : 2019-12-01 DOI: 10.2478/ecce-2019-0015
A. Romanova, V. Barzdenas
{"title":"A 79 dBΩ 1.2 GHz Low-Noise Single-Ended CMOS Transimpedance Amplifier for High-Performance OTDR Applications","authors":"A. Romanova, V. Barzdenas","doi":"10.2478/ecce-2019-0015","DOIUrl":"https://doi.org/10.2478/ecce-2019-0015","url":null,"abstract":"Abstract The work reports on the design and performance of a low-noise low-cost CMOS transimpedance amplifier (TIA). The proposed circuit shall be employed in optical time-domain reflectometers and is implemented using an affordable 0.18 µm 1.8 V CMOS process. The approach preserves the benefits of a classical feedback structure while addressing the noise problem of conventional feed-forward and resistive feedback architectures via the usage of noise-efficient capacitive feedback. Circuit-level modifications are proposed to mitigate the voltage headroom and DC current issues. The suggested design achieves a total gain of 82 dBΩ (79 dBΩ after the output buffer) within the bandwidth of 1.2 GHz while operating with a total input capacitance of 0.7 pF. The simulated average input-referred noise current density is below 1.8 pA/sqrt(Hz) with the power consumption of the complete amplifier including the output buffer being 21 mW.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"15 1","pages":"113 - 118"},"PeriodicalIF":0.7,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47501422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Generator of a Toy Dataset of Multi-Polygon Monochrome Images for Rapidly Testing and Prototyping Semantic Image Segmentation Networks 用于快速测试和原型语义图像分割网络的多多边形单色图像玩具数据集生成器
IF 0.7
Electrical Control and Communication Engineering Pub Date : 2019-12-01 DOI: 10.2478/ecce-2019-0008
V. Romanuke
{"title":"Generator of a Toy Dataset of Multi-Polygon Monochrome Images for Rapidly Testing and Prototyping Semantic Image Segmentation Networks","authors":"V. Romanuke","doi":"10.2478/ecce-2019-0008","DOIUrl":"https://doi.org/10.2478/ecce-2019-0008","url":null,"abstract":"Abstract In the paper, the problem of building semantic image segmentation networks in a more efficient way is considered. Building a network capable of successfully segmenting real-world images does not require a real semantic image segmentation task. At this stage, called prototyping, a toy dataset can be used. Such a dataset can be artificial and thus may not need augmentation for training. Besides, its entries are images of much smaller size, which allows training and testing the network a way faster. Objects to be segmented are one or few convex polygons in one image. Thus, a toy dataset generator is created whose complexity is regulated by the number of edges in a polygon, the maximal number of polygons in one image, the set of scale factors, and the set of probabilities determining how many polygons in a current image are generated. The dataset capacity and image size are concurrently adjustable, although they are much less influential.","PeriodicalId":42365,"journal":{"name":"Electrical Control and Communication Engineering","volume":"15 1","pages":"54 - 61"},"PeriodicalIF":0.7,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47105919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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