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2014 14th Biennial Baltic Electronic Conference (BEC)最新文献

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Enhanced semitransparent monocrystalline silicon solar cell structure 增强型半透明单晶硅太阳能电池结构
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-11-04 DOI: 10.1109/BEC.2014.7320548
E. Bándy, M. Rencz
{"title":"Enhanced semitransparent monocrystalline silicon solar cell structure","authors":"E. Bándy, M. Rencz","doi":"10.1109/BEC.2014.7320548","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320548","url":null,"abstract":"This paper presents the technology optimization and the characterisation of an improved semitransparent solar cell structure that can be used for building integrated applications. Through-holes can be etched using ammonium persulfate doped 5 wt.% tetramethylammonium hydroxide (TMAH) solution that ensures a stable 1.52 μm/min etching rate maintained over the entire process. Diluted TMAH surface texturing combined with RF sputtered silicon nitride reduces the average surface reflectance to 2.50%. The efficiency of the anisotropically etched test structure device is 9% including grid contact and silicon through-hole areas, the reached transparency is 6.7%.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133398820","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
ADS-B in space: Decoder implementation and first results from the GATOSS mission 太空中的ADS-B:解码实现和GATOSS任务的第一个结果
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-11-04 DOI: 10.1109/BEC.2014.7320555
Bjarke Gosvig Knudsen, Morten Jensen, Alex A. Birklykke, P. Koch, J. Christiansen, K. Laursen, Lars K. Alminde, Y. Le Moullec
{"title":"ADS-B in space: Decoder implementation and first results from the GATOSS mission","authors":"Bjarke Gosvig Knudsen, Morten Jensen, Alex A. Birklykke, P. Koch, J. Christiansen, K. Laursen, Lars K. Alminde, Y. Le Moullec","doi":"10.1109/BEC.2014.7320555","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320555","url":null,"abstract":"ADS-B is increasingly used for air traffic control in areas covered by terrestrial receivers; however, its limited range makes it unsuitable for other areas such as the oceans. To overcome this limitation, it has been proposed to receive ADS-B signals from low earth orbit nano-satellites and relay them to the terrestrial receivers. This paper gives an overview of the GATOSS mission and of its highly-sensitive ADS-B software-defined radio receiver payload. Details of the design and implementation of the receiver's decoder are introduced. The first real-life, space-based results show that ADS-B signals are indeed successfully received in space and retransmitted to a terrestrial station by the GATOSS nano-satellite orbiting at 700+ km altitudes, thus showing that GATOSS is capable of tracking flights, including transoceanic ones, from space.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"352 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115976137","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: 7
Alternatives of measurement of electrical bioimpedance of the body with the aim to determine the cardiac and respiratory activity 测量人体电生物阻抗的替代方法，目的是确定心脏和呼吸活动
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320590
M. Metshein
{"title":"Alternatives of measurement of electrical bioimpedance of the body with the aim to determine the cardiac and respiratory activity","authors":"M. Metshein","doi":"10.1109/BEC.2014.7320590","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320590","url":null,"abstract":"In this paper the measurement of breathing and pulse signals from the human body by using the electrical bioimpedance is discussed. The results of using contact and capacitive electrodes are compared. The influence of motion artifacts and parasitic circuit elements as relevant phenomena are discussed. The conclusions are made concerning the influence of motion artifacts to the measurement of vital signs.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116773367","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
Numerical aspects of the development of Quantum Cascade Laser simulation software 数值方面的量子级联激光仿真软件的开发
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320550
R. Reeder, A. Udal, E. Velmre, A. Valavanis, J. Cooper, A. Grier, P. Harrison
{"title":"Numerical aspects of the development of Quantum Cascade Laser simulation software","authors":"R. Reeder, A. Udal, E. Velmre, A. Valavanis, J. Cooper, A. Grier, P. Harrison","doi":"10.1109/BEC.2014.7320550","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320550","url":null,"abstract":"One of the most efficient device producing coherent high power radiation in terahertz range in electromagnetic spectrum is Quantum Cascade Laser (QCL). During over a decade of history, together with intensive development of terahertz quantum cascade lasers, respecting simulation software tools has been developed too. The process of development of simulation software is a sophisticated task, because many fields of science meet there - quantum electronics, computing technologies, software development etc. The progress in computing power have made simulation tools much more handy, as calculations of non-complex quantum well heterostructures can be run on a personal computer during a considerable time. Simulation of Quantum Cascade Lasers with complex structures can still be very time-consuming. In this paper few strategies on how to improve and optimize QWWAD software tools are analysed, implemented and corresponding results presented. Improvement of eigenvalue problem solution gave 20 times faster algorithm in solving Schrödinger equation. Other ideas did not give remarkable success.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128275135","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
Comparison of two approaches to improve functional BIST fault coverage 两种提高功能性BIST故障覆盖率的方法的比较
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320567
S. Kostin, R. Ubar, M. Gorev, Gunnar Magi
{"title":"Comparison of two approaches to improve functional BIST fault coverage","authors":"S. Kostin, R. Ubar, M. Gorev, Gunnar Magi","doi":"10.1109/BEC.2014.7320567","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320567","url":null,"abstract":"Two approaches to improve the fault coverage of functional logic BIST in digital circuits are proposed and investigated. The first approach is based on introducing of additional test points. An experimental tool set is developed for fast evaluation of the number of control points that is needed to achieve 100% fault coverage for the given functional test sequence. A novel algorithm is proposed to minimize the number of control points. The second approach is based on complementing the functional test with additional deterministic test patterns. The pros and cons of both approaches are highlighted and discussed.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129458497","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
Optimization of filtering scheme for reduction of loudspeaker frequency distortions 降低扬声器频率失真的滤波方案优化
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320570
R. Shavelis, K. Ozols, M. Greitans
{"title":"Optimization of filtering scheme for reduction of loudspeaker frequency distortions","authors":"R. Shavelis, K. Ozols, M. Greitans","doi":"10.1109/BEC.2014.7320570","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320570","url":null,"abstract":"In this paper an investigation is carried out on how to decrease the length of the FIR filter which is used for equalization of the loudspeaker distortions. It is shown that instead of one high-order filter, two FIR filters of lower order can be used by considering that an audio signal is split into two separate frequency bands by a digital crossover network. The expressions of the filters and a comparison of the resources required for implementation of the filtering schemes are provided.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121929198","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
Effect of the resistance of open and short faults on the production testing of MCML gates 断路和短路故障电阻对MCML栅极生产试验的影响
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320561
R. M. El-Din, A. S. Emara, S. Amer, M. M. Fouad, A. Madian, H. Amer, M. B. Abdelhalim, H. H. Draz
{"title":"Effect of the resistance of open and short faults on the production testing of MCML gates","authors":"R. M. El-Din, A. S. Emara, S. Amer, M. M. Fouad, A. Madian, H. Amer, M. B. Abdelhalim, H. H. Draz","doi":"10.1109/BEC.2014.7320561","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320561","url":null,"abstract":"This paper focuses on the production testing of MOS Current Mode Logic (MCML) gates based on 45nm MOS technology. The effect of the resistance value of open faults in an NAND/AND gate is investigated. It is shown that the test speed is determined by the characteristics of the pull up load. Open faults in other transistors are not affected by test speed. Also, it is proven that only three ordered test vectors are needed to detect all open as well as short resistive faults in the gate. Finally, the effect of the resistance of short faults is studied and it is found that the value of the resistance of the short does not affect the ability of vectors to detect faults in the 45nm technology while this is not the case for the 90nm MCML or the 45nm CMOS technologies.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133545622","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
Redesign of passive balancing battery management system to active balancing with integrated charger converter 将无源平衡蓄电池管理系统重新设计为集成充电转换器的主动平衡蓄电池
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320601
K. Vītols
{"title":"Redesign of passive balancing battery management system to active balancing with integrated charger converter","authors":"K. Vītols","doi":"10.1109/BEC.2014.7320601","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320601","url":null,"abstract":"The use of high power high efficiency battery systems is increasing as the fields of personal electric vehicles and other fields requiring DC energy storage elements are growing. A typical battery pack consists of series connected cells that need to be monitored and controlled to achieve optimal performance. In this article the author previous work regarding passive balancing circuit is described and the performance of a passive balancing circuit is given and drawbacks are discussed. Another method of active balancing is proposed. The new method combines an active balancing method and a charger topology to develop an integrated charger-balancer solution. The basic calculations of the converter are given. To evaluate the operation of the system a three supercapacitor cell charger circuit was developed and tested with three different capacitor initial voltages. The obtained results and system performance is discussed.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117029860","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: 11
Experimental studies of analog signal digital representing based on a high performance Event Timer 基于高性能事件定时器的模拟信号数字表示实验研究
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320583
Armands Mezerins
{"title":"Experimental studies of analog signal digital representing based on a high performance Event Timer","authors":"Armands Mezerins","doi":"10.1109/BEC.2014.7320583","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320583","url":null,"abstract":"Experimental studies of analog signal digitizing, performed on the basis of precise specific event forming and timing, are discussed. Some suggestions are given how to improve designs of the next converter versions, in particular, how to get information essential for precise signal reconstruction, for instance, the estimates of the reference sine-wave phase angle.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117262968","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
Bidirectional operation of the single-phase neutral-point-clamped quasi-Z-source inverter 单相中性点箝位准z源逆变器的双向工作
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320596
O. Husev, J. Zakis, D. Vinnikov, O. Savenko
{"title":"Bidirectional operation of the single-phase neutral-point-clamped quasi-Z-source inverter","authors":"O. Husev, J. Zakis, D. Vinnikov, O. Savenko","doi":"10.1109/BEC.2014.7320596","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320596","url":null,"abstract":"This paper shows the bidirectional operation possibility of the single phase three-level neutral-point-clamped quasi-Z-source grid connected inverter. The simple traditional control system for three-level grid connected rectifier was implemented. Simulation results confirmed bidirectional operation capability of the discussed topology.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127216151","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
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