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Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference最新文献

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Design and implementation of a low-complexity RAKE receiver and Channel Estimator for DS-UWB DS-UWB低复杂度RAKE接收机和信道估计器的设计与实现
Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference Pub Date : 2010-04-26 DOI: 10.1109/MELCON.2010.5476334
C. Thomos, C. Papadopoulos, G. Kalivas
{"title":"Design and implementation of a low-complexity RAKE receiver and Channel Estimator for DS-UWB","authors":"C. Thomos, C. Papadopoulos, G. Kalivas","doi":"10.1109/MELCON.2010.5476334","DOIUrl":"https://doi.org/10.1109/MELCON.2010.5476334","url":null,"abstract":"In this paper, the design and implementation of a low complexity Direct Sequence Ultra-Wideband (DS-UWB) receiver subsystem which incorporates a Channel Estimator (CE) and a novel hybrid Partial/Selective (HPS) RAKE Receiver (RR) using maximal ratio combining (MRC) is presented. The proposed architecture demonstrates the tradeoff between energy capture, performance and receiver complexity by combining the benefits of both partial and selective RAKE receiver algorithms. We focus our work on a highly parallel, modular, synthesizable design which is based on FPGA technology and it is optimized for high performance.","PeriodicalId":256057,"journal":{"name":"Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130251153","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
Experimental study of a phase modulator using an active interferometric device 有源干涉式相位调制器的实验研究
Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference Pub Date : 2010-04-26 DOI: 10.1109/MELCON.2010.5476364
R. Dionisio, C. Reis, P. André, R. Nogueira, A. Teixeira
{"title":"Experimental study of a phase modulator using an active interferometric device","authors":"R. Dionisio, C. Reis, P. André, R. Nogueira, A. Teixeira","doi":"10.1109/MELCON.2010.5476364","DOIUrl":"https://doi.org/10.1109/MELCON.2010.5476364","url":null,"abstract":"A novel architecture for an optical phase modulator is presented and experimentally demonstrated. This approach relies on a commercially available integrated Mach-Zehnder interferometer structure with Semiconductor Optical Amplifiers (MZI-SOA) and it is based in cross-phase modulation effect (XPM). The feasibility of the proposed optical phase modulator is experimentally investigated using different scenarios of input power and bit rates.","PeriodicalId":256057,"journal":{"name":"Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129387686","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
Time invariant control of MIMO systems under random transient failures 随机暂态故障下MIMO系统的时不变控制
Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference Pub Date : 2010-04-26 DOI: 10.1109/MELCON.2010.5475934
A. Gonzalez, A. Sala, P. Albertos
{"title":"Time invariant control of MIMO systems under random transient failures","authors":"A. Gonzalez, A. Sala, P. Albertos","doi":"10.1109/MELCON.2010.5475934","DOIUrl":"https://doi.org/10.1109/MELCON.2010.5475934","url":null,"abstract":"This paper investigates a control design methodology to achieve a stable controller for a multivariable system inside the fault tolerance framework. The main goal consists of designing a time invariant controller that guarantees stability even with a certain performance in terms of decay rate subject to random transient failures both in sensors and actuators. LMI, BMI, and other possible solutions are pursued for this objective. The most general case of fault tolerant including internal failures is also discussed. Finally a numerical example is shown to illustrate the proposed control design method.","PeriodicalId":256057,"journal":{"name":"Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129576061","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
Improving the automatic measurement of plant root growth 改进植物根系生长的自动测量
Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference Pub Date : 2010-04-26 DOI: 10.1109/MELCON.2010.5476261
P. Blanchfield, X. L. Chen
{"title":"Improving the automatic measurement of plant root growth","authors":"P. Blanchfield, X. L. Chen","doi":"10.1109/MELCON.2010.5476261","DOIUrl":"https://doi.org/10.1109/MELCON.2010.5476261","url":null,"abstract":"The measurement of plant root growth is important in gauging the effect of experimental changes (nutrients, illumination, orientation, etc) made to plants. The most commonly used software is a combination of the common optical flow measurement method of Horn and Shunk with a ruggedized backward forward block matching method. The best results for this method show a low reliability for the optic flow measurement (less than 5%) and mostly rely on the ruggedized backwards forwards block matching. The current paper demonstrates that by correct tuning of the aperture a scale space based optical flow measurement can produce a higher reliability than the former tensor method. In addition, when the output of the scale space optical flow measurements are used to constrain the search space of the block matching method a still higher reliability is achievable. Systematic errors introduced by the forward backward matching with a non-optimally constrained search space are also eliminated.","PeriodicalId":256057,"journal":{"name":"Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128504551","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
Buffer length impact to crosspoint queued crossbar switch performance 缓冲区长度对交叉点排队交叉开关性能的影响
Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference Pub Date : 2010-04-26 DOI: 10.1109/MELCON.2010.5476326
M. Radonjić, I. Radusinović
{"title":"Buffer length impact to crosspoint queued crossbar switch performance","authors":"M. Radonjić, I. Radusinović","doi":"10.1109/MELCON.2010.5476326","DOIUrl":"https://doi.org/10.1109/MELCON.2010.5476326","url":null,"abstract":"Performance analysis of two crosspoint queued switches, with four and sixteen ports, is presented in this paper. Crosspoint queued switch architecture has been recently actualized, since it is now not a problem to implement large buffers in crosspoints using modern technology any more. An advantage of this type of solution is the absence of control communication between linecards and schedulers. Four algorithms are used to implement a scheduler: longest queue first, round-robin, frame based round robin matching and random. Throughput, average cell latency and loss probability, are evaluated under uniform and various nonuniform traffic patterns. Results will show that the longest queue first algorithm has the best performance in most simulated cases. It will also be shown that an implemented algorithm does not have any influence on switch performance if the buffers are long enough.","PeriodicalId":256057,"journal":{"name":"Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124621017","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
A fault tolerant communication architecture supporting critical monitoring with Wireless Sensor Networks 一种容错通信架构，支持无线传感器网络的关键监控
Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference Pub Date : 2010-04-26 DOI: 10.1109/MELCON.2010.5476037
Luca Bencini, G. Collodi, Davide Di Palma, A. Manes, G. Manes
{"title":"A fault tolerant communication architecture supporting critical monitoring with Wireless Sensor Networks","authors":"Luca Bencini, G. Collodi, Davide Di Palma, A. Manes, G. Manes","doi":"10.1109/MELCON.2010.5476037","DOIUrl":"https://doi.org/10.1109/MELCON.2010.5476037","url":null,"abstract":"This paper deals with an integrated MAC and Routing protocol, able to manage faults occurring in Wireless Sensor Network (WSN). To this end, the protocol design has been inspired by the cross-layer principle to minimize both the signaling overhead and power consumption. After an accurate functional characterization, the performance is presented for the most relevant figures (recovering efficiency and latency, as well as the length of established end-to-end paths). The satisfactory results suggest the application to more complex scenarios where the nodes mobility is allowed.","PeriodicalId":256057,"journal":{"name":"Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130548339","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
Cross standard network management for the first responder's application 针对第一响应者应用的跨标准网络管理
Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference Pub Date : 2010-04-26 DOI: 10.1109/MELCON.2010.5475989
A. Zvikhachevskaya, L. Mihaylova
{"title":"Cross standard network management for the first responder's application","authors":"A. Zvikhachevskaya, L. Mihaylova","doi":"10.1109/MELCON.2010.5475989","DOIUrl":"https://doi.org/10.1109/MELCON.2010.5475989","url":null,"abstract":"In this paper the effectiveness of the networking existing data links to provide a robust and resilient network for the first responder's application is analysed. Methodology and an algorithm that can assist the internetworking different standards are presented. A cross standard scenario is simulated and results are explained.","PeriodicalId":256057,"journal":{"name":"Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130185390","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
Performance of an embedded monopole antenna array in a UAV wing structure 嵌入式单极天线阵列在无人机机翼结构中的性能研究
Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference Pub Date : 2010-04-26 DOI: 10.1109/MELCON.2010.5475956
M. Sharawi, O. Rawashdeh, D. Aloi
{"title":"Performance of an embedded monopole antenna array in a UAV wing structure","authors":"M. Sharawi, O. Rawashdeh, D. Aloi","doi":"10.1109/MELCON.2010.5475956","DOIUrl":"https://doi.org/10.1109/MELCON.2010.5475956","url":null,"abstract":"In this work we present a small size, printed monopole antenna embedded within the wing structure of a small Unmanned Aerial Vehicle (UAV) and operating in the 2.4 GHz ISM band. Integration of antenna elements within UAV structures will reduce the weight and cost. Also, the use of embedded antenna arrays will increase the communication range and data throughput. 4-element and 8-element embedded uniform linear antenna arrays are modeled, simulated and studied. Simulation and measurement results for the resonant frequency of the basic element were performed. Results showing the HPBW and SLL of the simulation models for different excitations for the wing structure antenna array are presented and compared.","PeriodicalId":256057,"journal":{"name":"Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130221852","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
Assessment of VoIP quality using Bayesian networks 基于贝叶斯网络的VoIP质量评估
Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference Pub Date : 2010-04-26 DOI: 10.1109/MELCON.2010.5476011
Z. Gaspar, Izabella Gócza
{"title":"Assessment of VoIP quality using Bayesian networks","authors":"Z. Gaspar, Izabella Gócza","doi":"10.1109/MELCON.2010.5476011","DOIUrl":"https://doi.org/10.1109/MELCON.2010.5476011","url":null,"abstract":"This paper presents a novel method for VoIP quality assessment by means of a Bayesian network. Current quality assessment methods are mainly based on voice stream analysis, their main drawback being the large computing power requirements. This novel method relies on call detail records, fact that substantially reduces the processing power requirements. An analysis of real life data, consisting of 460000 answered calls and 371 customer complaints, was done showing that more than 75% of customer complaints can be identified using this method.","PeriodicalId":256057,"journal":{"name":"Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127612513","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 concept of Q-varying digital IIR narrow bandpass filter with improved dynamic behavior 改进动态特性的变q数字IIR窄带通滤波器的概念
Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference Pub Date : 2010-04-26 DOI: 10.1109/MELCON.2010.5476020
J. Piskorowski, R. Kaszynski
{"title":"A concept of Q-varying digital IIR narrow bandpass filter with improved dynamic behavior","authors":"J. Piskorowski, R. Kaszynski","doi":"10.1109/MELCON.2010.5476020","DOIUrl":"https://doi.org/10.1109/MELCON.2010.5476020","url":null,"abstract":"Many applications require narrow (single-frequency) bandpass filters (NBPFs) which possess both a very selective magnitude response (i.e. high quality factor Q) and a transient response of short duration. However, increasing the quality factor also increases the duration of the transient process in the filter after the action of the excitation. This paper presents a concept of digital IIR narrow bandpass filters whose quality factor changes with time. Owing to a temporary change in the value of the quality factor, the transient can be considerably reduced. Simulations verifying the effectiveness of the proposed Q-varying bandpass filter are presented and compared to the performance of the traditional Q-constant filter.","PeriodicalId":256057,"journal":{"name":"Melecon 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115957191","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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