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International Multi-Conference on Systems, Sygnals & Devices最新文献

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Comparison of IGCT and IGBT for the use in the modular multilevel converter for HVDC applications 高压直流应用中模块化多电平变换器中IGCT和IGBT的比较
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6198118
M. Buschendorf, J. Weber, S. Bernet
{"title":"Comparison of IGCT and IGBT for the use in the modular multilevel converter for HVDC applications","authors":"M. Buschendorf, J. Weber, S. Bernet","doi":"10.1109/SSD.2012.6198118","DOIUrl":"https://doi.org/10.1109/SSD.2012.6198118","url":null,"abstract":"This paper describes briefly the modeling of the modular multilevel converter, which was introduced by Rainer Marquardt [1]. The mathematical model is used to calculate the average losses and junction temperature of the semiconductor devices in dependence on the converter output power. The junction temperature, the semiconductor losses and their several components are shown in order to compare a converter with IGCTs and a converter with IGBTs as switches. The comparison is made to show in which operating point the one or the other has its advantages.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114896073","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: 46
Design of wideband beamforming using particle swarm optimization 基于粒子群优化的宽带波束形成设计
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6198015
M. K. Khawaldeh, D. Abu-Al-Nadi
{"title":"Design of wideband beamforming using particle swarm optimization","authors":"M. K. Khawaldeh, D. Abu-Al-Nadi","doi":"10.1109/SSD.2012.6198015","DOIUrl":"https://doi.org/10.1109/SSD.2012.6198015","url":null,"abstract":"Beamforming is a signal processing technique by which an array of receivers sensitive to signals from all directions can be processed to form one larger more sensitive receiver that can identify which direction signals originate. In this paper the wideband beamforming using Tapped delay line will be investigated. Some applications in wireless communication systems need to design beamformer with a specified response like a sidelobe level less than threshold level or forming a null response points in interference direction or jamming frequency. So, we need to design optimal beamforming using optimization technique to achieve a desired response. In this paper, an evolutionary optimization technique, in specific, particle swarm optimization (PSO) will be used to design different examples on wideband beamforming.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123455781","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
Mobile-free driving with Android phones: System design and performance evaluation Android手机无移动驾驶:系统设计与性能评估
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6198003
Rawan T. Khalil, A. Khalifeh, Khalid A. Darabkh
{"title":"Mobile-free driving with Android phones: System design and performance evaluation","authors":"Rawan T. Khalil, A. Khalifeh, Khalid A. Darabkh","doi":"10.1109/SSD.2012.6198003","DOIUrl":"https://doi.org/10.1109/SSD.2012.6198003","url":null,"abstract":"Texting while driving is becoming a major problem in many countries worldwide, which if not handled properly can cause serious accidents. In this paper, we present our proposed system for a voiced based text messaging system utilizing Android phones empowered by Google voice recognition engine. We also present some of the software engineering challenges encountered during implementation. Utilizing our software, the user can issue voice commands to his mobile phone which in turn will send the text message on his behalf. Furthermore, we tested the performance of our system with different people that have different English accents, and under different background noise. Our performance analysis showed that there is a need to develop and enhance the current Google API voice recognition engine to better support people with different English accents. Moreover, the current APIs should allow the developer to add some signal processing functionalities to eliminate the effect of the background noise that the user may encounter while driving.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123653644","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: 13
Independent speed sensorless control of dual parallel PMSM based on Five-Leg Inverter 基于五腿逆变器的双并联永磁同步电机独立无速度传感器控制
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6198021
Z. Ibrahim, J. M. Lazi, M. Sulaiman
{"title":"Independent speed sensorless control of dual parallel PMSM based on Five-Leg Inverter","authors":"Z. Ibrahim, J. M. Lazi, M. Sulaiman","doi":"10.1109/SSD.2012.6198021","DOIUrl":"https://doi.org/10.1109/SSD.2012.6198021","url":null,"abstract":"This paper introduces a sensorless technique to drive independently dual Permanent Magnet Synchronous Motors (PMSM) based on Five-Leg Inverter (FLI). The main purpose of the proposed method is to eliminate the usage of speed sensor and to reduce the number of inverter switches from twelve to ten switches in the case of dual three-phase PMSMs drives. Despite the needs of speed sensor as the speed feedback for the dual PMSMs drives, there are no research done using sensorless technique in order to control independently dual three-phase PMSMs. A FLI contents ten switches which two switches represent as on e leg. For the five legs available, one leg is commonly connected to both PMSMs. The drive is simulated by using MATLAB/Simulink. The simulation results of the performance for Dual PMSMs fed by a FLI at rated speed are successfully achieved and offer potential result for hardware implementation. The applied technique shows good speed regulation and proves that Dual PMSMs can independently control at different speed operation either in forward or reverse operating conditions as well as for load disturbance.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128447612","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
A method for evaluating shading losses involved in a GC-BIPV using real data 一种利用实际数据评估GC-BIPV中遮阳损失的方法
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6198070
M. Drif, P. Pérez-Higueras, J. Aguilera, A. Mellit
{"title":"A method for evaluating shading losses involved in a GC-BIPV using real data","authors":"M. Drif, P. Pérez-Higueras, J. Aguilera, A. Mellit","doi":"10.1109/SSD.2012.6198070","DOIUrl":"https://doi.org/10.1109/SSD.2012.6198070","url":null,"abstract":"This paper presents a simplified method for evaluating the energy loss involved in a grid connected building integrated photovoltaic (GC-BIPV) system due to partial shading. The method consists in the comparison of the monthly theoretical curve (for un-shaded PV generator) and real fitted curve (deducted from monitoring data) of the maximum energy produced by the PV generator.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128692092","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
Influences on the indoor positioning accuracy of narrowband TDoA signals 窄带TDoA信号对室内定位精度的影响
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6198074
J. Renner, H. Zöllner, Till Böhnke, Burkart Vob
{"title":"Influences on the indoor positioning accuracy of narrowband TDoA signals","authors":"J. Renner, H. Zöllner, Till Böhnke, Burkart Vob","doi":"10.1109/SSD.2012.6198074","DOIUrl":"https://doi.org/10.1109/SSD.2012.6198074","url":null,"abstract":"Our research project deals with indoor positioning of non-cooperative, low-bandwidth mobile 2G phones using a distributed sensor network. In contrast to most existing geolocation approaches that basically rely on received signal strength (RSS) information, we try to exploit signal propagation delays to locate the mobile transmitter. Hence, estimation accuracy is influenced by various properties like signal modulation and bandwidth, multipath propagation, noise and interference which had to be identified. In this paper we present our time difference of arrival (TDoA) localization method, we show simulation results of some exemplary impairments and finally demonstrate the feasibility of our method by presenting the results of our measurement campaign.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128588930","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
Energy profile analysis by simulation for the design of energy harvesting systems 能量收集系统设计中的能量分布仿真分析
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6198079
C. Viehweger, M. Baldauf, T. Keutel, O. Kanoun
{"title":"Energy profile analysis by simulation for the design of energy harvesting systems","authors":"C. Viehweger, M. Baldauf, T. Keutel, O. Kanoun","doi":"10.1109/SSD.2012.6198079","DOIUrl":"https://doi.org/10.1109/SSD.2012.6198079","url":null,"abstract":"For the design of energy harvesting applications a detailed knowledge about the conditions at the planned operating place, especially the expected output, is required. The more informations are known, the better a system can be adapted. In addition to the available energy also the requirements of the load are needed to plan operating states and working intervals. Within this contribution different power profiles of a solar cell for indoor energy harvesting solutions have been recorded over one year. A simulation program has been developed, which compares available and required energy to make assertions for the supply of a defined load. A typical wireless transmitter has been used to test the program.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"2014 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127420679","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
The impact of transceiver distortions on the spectral properties of random CDMA with constant envelope 收发信机失真对随机恒包络CDMA频谱特性的影响
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6197953
A. Lampe, R. Müller
{"title":"The impact of transceiver distortions on the spectral properties of random CDMA with constant envelope","authors":"A. Lampe, R. Müller","doi":"10.1109/SSD.2012.6197953","DOIUrl":"https://doi.org/10.1109/SSD.2012.6197953","url":null,"abstract":"This paper studies the robustness of spreading sequences designed for random code-division multiple-access (CDMA) schemes with continuous-time constant envelope (CE) against transmitter impairments. It is shown that by taking into account the impairments of a real implementation the investigated design algorithm finds a set of spreading waveforms with exactly constant envelope which would even satisfy the transmit signal spectrum requirements of the 3rd generation Universal Mobile Telecommunications System (UMTS) standard. This shows that CE CDMA is compatible with linear CDMA while achieving higher power efficiency and supporting the usage of standard linear multiuser detection algorithms.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127422952","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
Improved power allocation in parallel Poisson channels 改进了平行泊松信道的功率分配
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6197919
Razgar Rahimi, G. Dadashzadeh
{"title":"Improved power allocation in parallel Poisson channels","authors":"Razgar Rahimi, G. Dadashzadeh","doi":"10.1109/SSD.2012.6197919","DOIUrl":"https://doi.org/10.1109/SSD.2012.6197919","url":null,"abstract":"The optimum power allocation for parallel Poisson channels which can minimize average power for obtaining maximum capacity is considered. In this paper a new power allocation scheme that outperforms previous schemes for more than enough powers is presented. Since in Poisson channels unbounded channel feeding with input power do not lead to a better utilization of the channel capacity, in the presented scheme extra powers that are more than required power for achieving maximum capacity are not used or if power dissipation is not possible, the extra power can be allocated in a new way which shows an improvement in the channel capacity. This approach is applied to the 2-fold parallel Poisson channels and is generalized to n-fold.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129116861","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
End-of-line testing and formation process in Li-ion battery assembly lines 锂离子电池装配线的生产线末端测试和成型工艺
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6198092
M. Wolter, G. Fauser, C. Bretthauer, M. Roscher
{"title":"End-of-line testing and formation process in Li-ion battery assembly lines","authors":"M. Wolter, G. Fauser, C. Bretthauer, M. Roscher","doi":"10.1109/SSD.2012.6198092","DOIUrl":"https://doi.org/10.1109/SSD.2012.6198092","url":null,"abstract":"The large-scale production of large-format Li-ion batteries is a challenging topic for suppliers of materials and components as well as for manufacturers of battery cells. Particularly, the formation and electrical testing of individual battery cells - the last steps of the production line - are identified as a significant bottleneck for mass production. Thus, detailed studies on end-of-line testing and formation were carried out to develop efficient test procedures and parameter extraction regarding cell quality monitoring.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130735999","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: 21
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