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Carpathian Journal of Electronic and Computer Engineering最新文献

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Realization of a Long-haul Optical Link with Erbium Doped Fiber Amplifier 用掺铒光纤放大器实现长距离光链路
Carpathian Journal of Electronic and Computer Engineering Pub Date : 2018-12-01 DOI: 10.2478/cjece-2018-0018
Tomás Huszaník, J. Turán, Ľ. Ovseník
{"title":"Realization of a Long-haul Optical Link with Erbium Doped Fiber Amplifier","authors":"Tomás Huszaník, J. Turán, Ľ. Ovseník","doi":"10.2478/cjece-2018-0018","DOIUrl":"https://doi.org/10.2478/cjece-2018-0018","url":null,"abstract":"Abstract The need for high capacity and bandwidth in broadband communication systems increased rapidly in a few past years. Optical fiber is now the major transmission medium for fast and reliable communication replacing the old copper-based connections. However, with the deployment of optical networks, number of problems arise. The main problem of optical networks is the amplification in the long-distance transmission. Erbium doped fiber amplifier (EDFA) is the leading technology in the field of optical amplifiers. It uses erbium doped fiber to amplify optical signal. The importance of amplification in optical domain is relevant in long-haul and high-speed transmission systems. In this paper the study of the EDFA is presented. Based on an analytical study, the simulation model of the EDFA is created. The main aim is to determine the optimal parameters of the EDFA for a long-haul 16-channel DWDM (Dense Wavelength Division Multiplexing) system. The performance of the proposed DWDM system is mathematically analyzed using BER (Bit Error Rate) and Q factor.","PeriodicalId":30888,"journal":{"name":"Carpathian Journal of Electronic and Computer Engineering","volume":"11 1","pages":"44 - 49"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46249628","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
Estimation of Power and Delay in CMOS Circuits using Leakage Control Transistor 用泄漏控制晶体管估算CMOS电路的功率和延迟
Carpathian Journal of Electronic and Computer Engineering Pub Date : 2018-12-01 DOI: 10.2478/cjece-2018-0014
Aylapogu Pramod Kumar, B. Aditya, G. Sony, C. Prasanna, A. Satish
{"title":"Estimation of Power and Delay in CMOS Circuits using Leakage Control Transistor","authors":"Aylapogu Pramod Kumar, B. Aditya, G. Sony, C. Prasanna, A. Satish","doi":"10.2478/cjece-2018-0014","DOIUrl":"https://doi.org/10.2478/cjece-2018-0014","url":null,"abstract":"Abstract With a rapid growth in semiconductor Industry, complex applications are being implemented using small size chips, with the use of Complementary Metal Oxide Semi-Conductors (CMOS). With the introduction of new Integrated Circuit (IC) technology, the speed of the circuits has been increased by around 30%. But it was observed that for every two years, the power dissipation of a circuit doubles. The main reason for this power dissipation is leakage currents in the circuit. To reduce these leakage currents, we can reduce the width of the device. In addition to this, we can use lector techniques that use Leakage Control Transistors (LCT) and High Threshold Leakage Control Transistors (HTLCT).In this paper; we present a circuit technique that uses 130 nano-meter CMOS VLSI circuits that use two extra transistors to mitigate the leakage currents. The proposed technique overcomes the limitations posed by the existing methods for leakage reductions an average leakage reductions is 82.5%.The estimation of power and delay will be discussed using LCT’s and HTLCT’s.","PeriodicalId":30888,"journal":{"name":"Carpathian Journal of Electronic and Computer Engineering","volume":"11 1","pages":"25 - 28"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49322063","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: 0
A comparative study between four-level NSVM and three-level NSVM technique for a DFIG-based WECSs controlled by indirect vector control 间接矢量控制下基于dfig的wcs的4级和3级NSVM技术的比较研究
Carpathian Journal of Electronic and Computer Engineering Pub Date : 2018-12-01 DOI: 10.2478/cjece-2018-0012
H. Benbouhenni, Z. Boudjema, A. Belaidi
{"title":"A comparative study between four-level NSVM and three-level NSVM technique for a DFIG-based WECSs controlled by indirect vector control","authors":"H. Benbouhenni, Z. Boudjema, A. Belaidi","doi":"10.2478/cjece-2018-0012","DOIUrl":"https://doi.org/10.2478/cjece-2018-0012","url":null,"abstract":"Abstract In this work, we present a comparative study between four-level neural space vector modulation (4L-NSVM) and three-level neural space vector modulation (3L-NSVM) technique in indirect vector control (IVC) of reactive and active power control of a doubly fed induction generator (DFIG) for wind energy conversion systems (WECSs). Two controls techniques using IVC-4L-NSVM and IVC-3L-NSVM are proposed and compared. The validity of the proposed control schemes is verified by simulation tests of a DFIG-based wind turbine system (WTSs). The stator active power, stator reactive power and rotor current is determined and compared in the above strategies. The obtained results showed that the proposed IVC with 4L-NSVM technique have reactive and stator active power with low powers ripples and low rotor current harmonic distortion than 3L-NSVM technique.","PeriodicalId":30888,"journal":{"name":"Carpathian Journal of Electronic and Computer Engineering","volume":"11 1","pages":"13 - 19"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46726385","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: 14
Real Time Operating System Options in Connected Embedded Equipment for Distributed Data Acquisition 用于分布式数据采集的嵌入式互联设备中的实时操作系统选项
Carpathian Journal of Electronic and Computer Engineering Pub Date : 2018-12-01 DOI: 10.2478/cjece-2018-0016
Teodor Sumalan, E. Lupu, R. Arsinte
{"title":"Real Time Operating System Options in Connected Embedded Equipment for Distributed Data Acquisition","authors":"Teodor Sumalan, E. Lupu, R. Arsinte","doi":"10.2478/cjece-2018-0016","DOIUrl":"https://doi.org/10.2478/cjece-2018-0016","url":null,"abstract":"Abstract The purpose of the work described in this paper is to compare more configurations belonging to portables real-time operating systems for embedded devices based on Raspberry Pi board. The developed application in this work can monitor the status in a greenhouse: irrigation, heating, ventilation, humidification, closing/opening panels etc. following weather conditions. Our target is to choose an efficient, minimal operating system optimized for the desired application. Other targets are high flexibility, optimal modularity, high readability and maintainability of the source code.","PeriodicalId":30888,"journal":{"name":"Carpathian Journal of Electronic and Computer Engineering","volume":"11 1","pages":"35 - 58"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46041078","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
Design of Helix Antenna for 9.2GHz in FEKO for FSO/RF Hybrid System Focused on Height of Helix 基于螺旋高度的FSO/RF混合系统FEKO中9.2GHz螺旋天线的设计
Carpathian Journal of Electronic and Computer Engineering Pub Date : 2018-12-01 DOI: 10.2478/cjece-2018-0010
M. Márton, Ľ. Ovseník, J. Turán, M. Spes, J. Urbanský
{"title":"Design of Helix Antenna for 9.2GHz in FEKO for FSO/RF Hybrid System Focused on Height of Helix","authors":"M. Márton, Ľ. Ovseník, J. Turán, M. Spes, J. Urbanský","doi":"10.2478/cjece-2018-0010","DOIUrl":"https://doi.org/10.2478/cjece-2018-0010","url":null,"abstract":"Abstract Nowadays we are living in the ages of expansion of communication. The young generation depends on the online communications with other. Each of the devices is purposed to communication. Cloud data storage systems are available only with stable connection. Requirements are growing up to date. The answer on these requirements: the high speed of transmission, high level of security and wide bandwidth are optical communication systems. This system offers comparable features as optical system with physical optical fibers. But it has one big drawback. It is sensitivity to weather changes. We have to make backup link for case of outages. One part of design FSO/RF system in our case contains selection of appropriate type of RF antenna. We are looking for appropriate candidate. This paper is focused on analysis of helix antenna operating in non-licensed frequency range on 9.2GHz. The point of this paper is the examination of the impact of the height of helix designed antenna.","PeriodicalId":30888,"journal":{"name":"Carpathian Journal of Electronic and Computer Engineering","volume":"11 1","pages":"3 - 7"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42419228","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: 0
Adaptive Nonlinear Control of A Synchronous Generator 同步发电机的自适应非线性控制
Carpathian Journal of Electronic and Computer Engineering Pub Date : 2018-12-01 DOI: 10.2478/cjece-2018-0017
Moulay Fatima, Habbatti Assia, Hamdaoui Habib
{"title":"Adaptive Nonlinear Control of A Synchronous Generator","authors":"Moulay Fatima, Habbatti Assia, Hamdaoui Habib","doi":"10.2478/cjece-2018-0017","DOIUrl":"https://doi.org/10.2478/cjece-2018-0017","url":null,"abstract":"Abstract In this work, an adaptive nonlinear control method, was applied to a synchronous generator and we give some initial results on the adaptive control of nonlinear systems which are exactly input-output linearizable by state feedback. Parameters adaptation is used as a technique to robustify the exact cancelation of nonlinear terms, which is called for the linearization technique. The performance of the proposed adaptive nonlinear control scheme is demonstrated by simulation results. These results show that the proposed method achieves the same high dynamic performance as vector control.","PeriodicalId":30888,"journal":{"name":"Carpathian Journal of Electronic and Computer Engineering","volume":"11 1","pages":"39 - 43"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43066878","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
Acoustic Sensor for Detecting Intruders in Wild Environments 用于探测野生环境中入侵者的声学传感器
Carpathian Journal of Electronic and Computer Engineering Pub Date : 2018-12-01 DOI: 10.2478/cjece-2018-0020
O. Pop, C. Rusu, L. Grama
{"title":"Acoustic Sensor for Detecting Intruders in Wild Environments","authors":"O. Pop, C. Rusu, L. Grama","doi":"10.2478/cjece-2018-0020","DOIUrl":"https://doi.org/10.2478/cjece-2018-0020","url":null,"abstract":"Abstract The aim of this work is to develop a device capable to record multiple audio signals (in our case 4 audio signals from 4 microphones of the area) and transmit the information through a network for acoustic source localization. We briefly discuss the first two versions, then the HRTF (Head Related Transfer Function) version of the acoustic sensors is detailed. Experimental results for identifying sound sources are also presented.","PeriodicalId":30888,"journal":{"name":"Carpathian Journal of Electronic and Computer Engineering","volume":"11 1","pages":"56 - 59"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47954186","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
Processing EEG signals acquired from a consumer grade BCI device 处理从消费级脑机接口设备获取的脑电图信号
Carpathian Journal of Electronic and Computer Engineering Pub Date : 2018-12-01 DOI: 10.2478/cjece-2018-0015
Fanny Monori, S. Oniga
{"title":"Processing EEG signals acquired from a consumer grade BCI device","authors":"Fanny Monori, S. Oniga","doi":"10.2478/cjece-2018-0015","DOIUrl":"https://doi.org/10.2478/cjece-2018-0015","url":null,"abstract":"Abstract BCI (Brain-Computer Interface) is a technology which goal is to create and manage a connection between the human brain and a computer with the help of EEG signals. In the last decade consumer-grade BCI devices became available thus giving opportunity to develop BCI applications outside of clinical settings. In this paper we use a device called NeuroSky MindWave Mobile. We investigate what type of information can be deducted from the data acquired from this device, and we evaluate whether it can help us in BCI applications. Our methods of processing the data involves feature extraction methods, and neural networks. Specifically, we make experiments with finding patterns in the data by binary and multiclass classification. With these methods we could detect sharp changes in the signal such as blinking patterns, but we could not extract more complex information successfully.","PeriodicalId":30888,"journal":{"name":"Carpathian Journal of Electronic and Computer Engineering","volume":"11 1","pages":"29 - 34"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44226242","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: 8
An Image Encryption Algorithm with Total Diffusion 一种全扩散图像加密算法
Carpathian Journal of Electronic and Computer Engineering Pub Date : 2018-09-01 DOI: 10.2478/cjece-2018-0004
Jakub Oravec, J. Turán, Ľ. Ovseník
{"title":"An Image Encryption Algorithm with Total Diffusion","authors":"Jakub Oravec, J. Turán, Ľ. Ovseník","doi":"10.2478/cjece-2018-0004","DOIUrl":"https://doi.org/10.2478/cjece-2018-0004","url":null,"abstract":"Abstract This paper proposes an image encryption algorithm which uses four scans of an image during the diffusion stage in order to achieve total diffusion between intensities of image pixels. The condition of total diffusion is fulfilled by a suitable combination of techniques of ciphertext chaining and plaintext related diffusion. The proposed encryption algorithm uses two stages which utilize chaotic logistic map for generation of pseudo-random sequences. The paper also briefly analyzes approaches described by other researchers and evaluates experimental results of the proposed solution by means of commonly used measures. Properties of our proposal regarding modifications of plain images prior to encryption or modifications of encrypted images prior to decryption are illustrated by two additional experiments. The obtained numeric results are compared with those achieved by other proposals and briefly discussed.","PeriodicalId":30888,"journal":{"name":"Carpathian Journal of Electronic and Computer Engineering","volume":"11 1","pages":"15 - 25"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46999585","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: 0
Stability study of the neural network at particle physics detectors 粒子物理探测器上神经网络的稳定性研究
Carpathian Journal of Electronic and Computer Engineering Pub Date : 2018-09-01 DOI: 10.2478/cjece-2018-0009
T. Majoros, B. Ujvari
{"title":"Stability study of the neural network at particle physics detectors","authors":"T. Majoros, B. Ujvari","doi":"10.2478/cjece-2018-0009","DOIUrl":"https://doi.org/10.2478/cjece-2018-0009","url":null,"abstract":"Abstract Neural networks are used as triggers at highenergy physics detectors. These triggers can separate the event that must be saved for later analysis from the other events or noises. Using the raw data of the detector, the signal and the background can be separated offline. After separation, sets of signals and backgrounds can be used to train the neural network. A gas-filled detector (multiwire proportional chamber) was used to study the trigger at different noise levels to find the most stable neural network that tolerates the random hits. The ratio of the recognized and the unrecognized signal and background events is used for the measurement. Its stability is part of the systematical uncertainty.","PeriodicalId":30888,"journal":{"name":"Carpathian Journal of Electronic and Computer Engineering","volume":"11 1","pages":"48 - 52"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44241911","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
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