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2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA)最新文献

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Effects of quantization on Golay sequence based channel estimation 量化对基于Golay序列信道估计的影响
2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2017-04-01 DOI: 10.1109/RADIOELEK.2017.7936645
Márton Kovács, B. Csuka, Z. Kollár
{"title":"Effects of quantization on Golay sequence based channel estimation","authors":"Márton Kovács, B. Csuka, Z. Kollár","doi":"10.1109/RADIOELEK.2017.7936645","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2017.7936645","url":null,"abstract":"In this paper we investigate a widely adapted complementary Golay sequences which are used for channel estimation in digital data transmission systems. The performance of the Golay correlator based and the fast Fourier transform based channel estimation methods are evaluated. The effects of quantization on the estimation of the channel impulse response is compared through simulations.","PeriodicalId":160577,"journal":{"name":"2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133786711","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
Matrix pencil design approach towards fractional-order PI, PD and PID regulators 分数阶PI、PD和PID调节器的矩阵铅笔设计方法
2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2017-04-01 DOI: 10.1109/RADIOELEK.2017.7936653
J. Petrzela
{"title":"Matrix pencil design approach towards fractional-order PI, PD and PID regulators","authors":"J. Petrzela","doi":"10.1109/RADIOELEK.2017.7936653","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2017.7936653","url":null,"abstract":"Synthesis method and its application leading to few derived network structures of the fractional-order PI controllers is proposed in this brief paper. It is based on algorithm originally developed for analysis of the linearized circuits widely known as matrix method of unknown nodal voltages (MMUNV); approach is only reversed. PI<sup>α</sup>, PD<sup>α</sup> regulators where α is a decimal-step fractions between zero and unity are discovered systematically by using prescribed voltage transfer function. Since MMUNV has significant degree of freedom derived networks are electronically reconfigurable. Approach leading to PI<sup>α</sup>D, PID<sup>α</sup>, PI<sup>1−α</sup>D<sup>α</sup> as well as PI<sup>α</sup>D<sup>1−α</sup> with single grounded constant phase element (CPE) is briefly discussed. Proposed concept is verified by considering few designed lumped analog circuits and verified by Orcad Pspice circuit simulations, both as time response to step signal and in the frequency domain. CPE as basic and required building block are implemented as two-terminal devices using known passive ladder topology. Frequency limitations of constructed controllers caused by valid approximation of CPE are mentioned; also in the context of parasitic properties of the active devices.","PeriodicalId":160577,"journal":{"name":"2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116725622","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
Visual design environment of dynamic load balancing in software defined networks 软件定义网络中动态负载均衡的可视化设计环境
2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2017-04-01 DOI: 10.1109/RADIOELEK.2017.7936643
D. Perepelkin, V. Byshov
{"title":"Visual design environment of dynamic load balancing in software defined networks","authors":"D. Perepelkin, V. Byshov","doi":"10.1109/RADIOELEK.2017.7936643","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2017.7936643","url":null,"abstract":"Currently the number of the network devices realizing transfer of huge volumes of different data types has been increased. Therefore the computer networks (CN) type has been changed that leads to excessively complex management of various flows and doesn't allow to provide the required quality of service (QoS). Emergence of essentially new approach to construction of computer networks - the software defined networks (SDN) which the response to crisis of CN have been become. The purpose of the work is development visual design environment of dynamic load balancing in software defined networks. In work we focused on indicator of jitter optimization between the paved paths and a deviation value of reserve routes from an optimal route taking into account various QoS. Contrastive analysis of different approaches to dynamic load balancing and also modeling on various topologies of SDN has been carried out.","PeriodicalId":160577,"journal":{"name":"2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116857007","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: 10
Mobile wireless sensor networks coverage maximization by firefly algorithm 移动无线传感器网络覆盖最大化的萤火虫算法
2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2017-04-01 DOI: 10.1109/RADIOELEK.2017.7937592
Eva Tuba, M. Tuba, M. Beko
{"title":"Mobile wireless sensor networks coverage maximization by firefly algorithm","authors":"Eva Tuba, M. Tuba, M. Beko","doi":"10.1109/RADIOELEK.2017.7937592","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2017.7937592","url":null,"abstract":"Wireless sensor networks have many applications and accordingly represent an active research area. Coverage maximization of the area of interest by sensors that have limited sensing radius is an important hard optimization problem. Since sensors are initially often deployed randomly one way of solving maximal coverage problem is by using mobile sensors that move to optimal positions. Since power in sensor nodes is limited, minimization of the sensor nodes movement is secondary optimization goal. In this paper we propose use of recent swarm intelligence algorithm, firefly algorithm, for optimization of that hard multiobjective problem. We tested our approach on standard benchmark data and compared results with other techniques from literature. Our proposed approach was better considering all quality measures: coverage, energy consumption, robustness and convergence speed.","PeriodicalId":160577,"journal":{"name":"2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130789858","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: 29
Characteristics of SPI drivers in RTOS environment RTOS环境下SPI驱动的特性
2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2017-04-01 DOI: 10.1109/RADIOELEK.2017.7937586
Marian Cingel, Marek Novák, T. Fryza
{"title":"Characteristics of SPI drivers in RTOS environment","authors":"Marian Cingel, Marek Novák, T. Fryza","doi":"10.1109/RADIOELEK.2017.7937586","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2017.7937586","url":null,"abstract":"The article describes different types of SPI (Serial Peripheral Interface) drivers in RTOS (Real-Time Operating System) environment. Each driver can be appraised from various perspectives e.g. throughput, CPU usage, etc. which result in different characteristics. The advantage of dissimilarities can be used to effectively satisfy software application requirements. The article presents drivers from throughput and idle time points of view. Analysis and data is related with PK22FN512 microcontroller and FreeRTOS.","PeriodicalId":160577,"journal":{"name":"2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127569224","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
Positive envelope feedback for linearity improvement in RFIC PAs 正包络反馈用于改善RFIC PAs的线性度
2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2017-04-01 DOI: 10.1109/RADIOELEK.2017.7936642
Smarjeet Sharma, N. Constantin, Y. Soliman
{"title":"Positive envelope feedback for linearity improvement in RFIC PAs","authors":"Smarjeet Sharma, N. Constantin, Y. Soliman","doi":"10.1109/RADIOELEK.2017.7936642","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2017.7936642","url":null,"abstract":"This paper introduces a dynamic biasing technique intended for Radio Frequency Integrated Circuit (RFIC) power amplifiers (PAs), using positive envelope feedback based on the instantaneous envelope signal at the output of the PA, for linearity improvement. Through the simulation, design and implementation of a 5.4 GHz SOI-CMOS PA, we demonstrate that the proposed positive envelope feedback technique allows extending the output 1 dB compression (P1dB) point by 1.7 dB while meeting stability and noise requirements for a PA with P1dB of 19.5 dB m. As a result, the same linearity performance is met at a higher power level, without resorting to device size increase and the associated current increase. Hence, the technique improves the efficiency/linearity trade-off. Moreover, the described technique requires negligible additional quiescent current, minimum additional chip area and has the potential for wide bandwidths, which makes it attractive for RFIC PAs.","PeriodicalId":160577,"journal":{"name":"2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"221 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133659078","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
Analysis of DVB-T2 signal for exploitation by Passive Coherent Location system 无源相干定位系统利用DVB-T2信号的分析
2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2017-04-01 DOI: 10.1109/RADIOELEK.2017.7937599
J. Pidanic, Karel Juryca
{"title":"Analysis of DVB-T2 signal for exploitation by Passive Coherent Location system","authors":"J. Pidanic, Karel Juryca","doi":"10.1109/RADIOELEK.2017.7937599","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2017.7937599","url":null,"abstract":"The paper describes basic analysis and research of actual topics dedicated to exploitation of DVB-T2 transmitters by a Passive Coherent Location system (PCL system). The PCL system is based on bistatic radars. The target detection in bistatic radar is solved by computation of the Cross Ambiguity function. The paper focuses on description of structure and various parameters of the DVB-T2 signal and its influence on the shape of Cross Ambiguity Function.","PeriodicalId":160577,"journal":{"name":"2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132422871","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: 5
An FEM based framework to simulate semiconductor devices using streamline upwind Petrov-Galerkin stabilization technique 基于有限元的流线迎风彼得罗夫-伽辽金稳定技术半导体器件模拟框架
2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2017-04-01 DOI: 10.1109/RADIOELEK.2017.7936644
G. Kumar, Mandeep Singh, Ashok Ray, G. Trivedi
{"title":"An FEM based framework to simulate semiconductor devices using streamline upwind Petrov-Galerkin stabilization technique","authors":"G. Kumar, Mandeep Singh, Ashok Ray, G. Trivedi","doi":"10.1109/RADIOELEK.2017.7936644","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2017.7936644","url":null,"abstract":"In this paper, a Continuous Galerkin Finite Element Method has been used to build a suitable framework to numerically analyse semiconductor devices for various applications in electronics industry. Streamline upwind Petrov-Galerkin (SUPG) stabilization technique has been utilized to calculate the flux (flow of charge) in the device effectively. SUPG stabilization technique has been proved to be better than the classical Scharfetter-Gummel method to solve a advection-diffusion equation. We have implemented semi-classical Drift-Diffusion model to simulate semiconductor devices, incorporating different models for carrier generation-recombination and mobility. SUPG technique enables the use of coarse unstructured mesh to get accurate results which effectively reduces simulation time as well. Simulation results for a PN junction diode and MOSFET have been presented to validate effectiveness of the method.","PeriodicalId":160577,"journal":{"name":"2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134602361","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
Parallelizing boundary surface computation of Chua's circuit 蔡氏电路边界面的并行计算
2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2017-04-01 DOI: 10.1109/RADIOELEK.2017.7937582
Z. Rácz, B. Sobota, M. Guzan
{"title":"Parallelizing boundary surface computation of Chua's circuit","authors":"Z. Rácz, B. Sobota, M. Guzan","doi":"10.1109/RADIOELEK.2017.7937582","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2017.7937582","url":null,"abstract":"This paper introduces a method for performing parallel computations of the boundary surface of Chua's circuit. The presented approach could be characterized as a SIMD method which is based on the utilization of all available CPU cores. Performance comparisons between single and parallelized calculations on different computer systems are included in a table at the end of the article. The best results were observed using the highest compiler optimisation options on 64 bit architecture and using Intel i7 CPUs.","PeriodicalId":160577,"journal":{"name":"2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"344 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133830651","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: 5
Control of triangular wave quadrature oscillator 三角波正交振荡器的控制
2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2017-04-01 DOI: 10.1109/RADIOELEK.2017.7936639
M. Stork
{"title":"Control of triangular wave quadrature oscillator","authors":"M. Stork","doi":"10.1109/RADIOELEK.2017.7936639","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2017.7936639","url":null,"abstract":"Oscillators are an important electronic system that is included in almost every electronic device. Usually the frequency and amplitude stability is important. There are oscillators with different type of output signal e.g. sinusoidal, square etc. In this paper the quadrature oscillator with triangular output signal and amplitude stabilization is described. The quadrature output can be relevant for some applications. The output signal amplitude stabilization is derived from state space equations. Of course the control of amplitude and frequency is possible.","PeriodicalId":160577,"journal":{"name":"2017 27th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128794738","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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