发布求助
文献互助 智能选刊 最新文献

2009 3rd International Conference on Signals, Circuits and Systems (SCS)最新文献

筛选
英文 中文
Wavelet-based ECG signals compression using SPIHT technique and VKTP coder 基于SPIHT技术和VKTP编码器的小波心电信号压缩
2009 3rd International Conference on Signals, Circuits and Systems (SCS) Pub Date : 2009-11-01 DOI: 10.1109/ICSCS.2009.5412584
N. Boukhennoufa, K. Benmahammed, M. Abdi, F. Djeffal
{"title":"Wavelet-based ECG signals compression using SPIHT technique and VKTP coder","authors":"N. Boukhennoufa, K. Benmahammed, M. Abdi, F. Djeffal","doi":"10.1109/ICSCS.2009.5412584","DOIUrl":"https://doi.org/10.1109/ICSCS.2009.5412584","url":null,"abstract":"In this paper, an efficient Electrocardiogram (ECG) signal compression method based on wavelet transform is presented. The proposed method combines the adapted SPIHT (Set Partitioning In Hierarchical Trees) method with VKTP (Vector K-Tree Partitioning) coder. The SPIHT method is based on the use of wavelet transform which is very well suited to locate the energy of the signal in fewer coefficients. Using the VKTP algorithm, to encode the generated bit stream of SPIHT algorithm, we achieve high compression performances. The tests of this lossy compression/ decompression technique are performed on many ECG records from Arrhythmia Database. The obtained results illustrate the capabilities of the proposed approach to improve the compression ratio while maintaining a good signal quality.","PeriodicalId":126072,"journal":{"name":"2009 3rd International Conference on Signals, Circuits and Systems (SCS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127619582","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: 16
Predictive approach for OFDMA resource allocation over fixed wireless channels 无线固定信道OFDMA资源分配的预测方法
2009 3rd International Conference on Signals, Circuits and Systems (SCS) Pub Date : 2009-11-01 DOI: 10.1109/ICSCS.2009.5413884
S. Najeh, Hichem Besbes, A. Bouallègue
{"title":"Predictive approach for OFDMA resource allocation over fixed wireless channels","authors":"S. Najeh, Hichem Besbes, A. Bouallègue","doi":"10.1109/ICSCS.2009.5413884","DOIUrl":"https://doi.org/10.1109/ICSCS.2009.5413884","url":null,"abstract":"WiMAX is a broadband wireless technology that supports fixed, nomadic, portable and mobile access. For the fixed or portable applications, the channel can be considered as a static. In this paper, we propose to use channel prediction in order to improve the performances of resource allocation algorithms, in term of outage probability and average throughput. Moreover, for a dynamic OFDMA system, when different traffics are offered at each time slot, a good scheduling of the available resources among the users is necessarily. We propose an algorithm of resource allocation based on both the prediction of the channel and the traffic in order to overcome the buffer overflow. For a Constant Bit Rate (CBR), we show that the channel prediction yields a significant average throughput.","PeriodicalId":126072,"journal":{"name":"2009 3rd International Conference on Signals, Circuits and Systems (SCS)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125469279","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
Multisensor cooperation in military surveillance systems 军事监视系统中的多传感器合作
2009 3rd International Conference on Signals, Circuits and Systems (SCS) Pub Date : 2009-11-01 DOI: 10.1109/ICSCS.2009.5412286
A. Benaskeur, A. Khamis, H. Irandoust
{"title":"Multisensor cooperation in military surveillance systems","authors":"A. Benaskeur, A. Khamis, H. Irandoust","doi":"10.1109/ICSCS.2009.5412286","DOIUrl":"https://doi.org/10.1109/ICSCS.2009.5412286","url":null,"abstract":"Surveillance operations include the timely detection, localization, recognition and identification of objects and events, their relationships, activities, and plans, in a given Volume Of Interest (VOI). Distributed sensors when properly managed can cooperatively provide a complete, accurate, and timely information about the presence and activity of all objects or events within a VOI. This paper presents a holonic sensor management approach that can be used to handle cooperative tasks such as target cueing and handoff in military surveillance operations.","PeriodicalId":126072,"journal":{"name":"2009 3rd International Conference on Signals, Circuits and Systems (SCS)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127026556","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: 9
Improving TCP throughput stability in wireless multi-hop Ad hoc networks 提高无线多跳Ad hoc网络中TCP吞吐量的稳定性
2009 3rd International Conference on Signals, Circuits and Systems (SCS) Pub Date : 2009-11-01 DOI: 10.1109/ICSCS.2009.5412688
Yahya M. Omar, H. Sigiuk, H. B. Salem, Tamir T. M. Hamdan
{"title":"Improving TCP throughput stability in wireless multi-hop Ad hoc networks","authors":"Yahya M. Omar, H. Sigiuk, H. B. Salem, Tamir T. M. Hamdan","doi":"10.1109/ICSCS.2009.5412688","DOIUrl":"https://doi.org/10.1109/ICSCS.2009.5412688","url":null,"abstract":"To enable seamless integration of ad hoc networks with other Infrastructure LANs and to the Internet, TCP seems to be the natural choice for users of ad hoc networks that want to communicate reliably with each other and with the Internet. It is well-known that due to the nature of multi-hop wireless Ad hoc network applications, TCP throughput instability can have a devastating impact on the QoS requirements and is regarded as one of the main TCP problems. In this paper, we first illustrate the TCP throughput instability simulation results for a chain-topology network that uses the IEEE 802.11 medium access control protocol and ad hoc routing protocol. We then discuss why the performance of TCP is poor in this scenario. A simple solution is proposed that enables the DSR routing protocol to reduce its trigger of unnecessary route error process due to MAC collisions which interrupts and affects the TCP link operation, and forces the TCP congestion window to enter the slow start phase leading to deteriorated and unstable TCP throughput. Our proposed solution enforces the TCP sender to recover packet losses of data by fast retransmit / fast recovery TCP mechanism without resorting to the coarse grained Retransmission Time Out (RTO), which is often detrimental to throughput. It is shown that our modification in DSR has caused significant improvement in TCP throughput stability for the chain, grid, and random mobile topologies compared to TCPs over standard DSR.","PeriodicalId":126072,"journal":{"name":"2009 3rd International Conference on Signals, Circuits and Systems (SCS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130056957","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
CMOS RF powering system for cochlear implant 人工耳蜗CMOS射频供电系统
2009 3rd International Conference on Signals, Circuits and Systems (SCS) Pub Date : 2009-11-01 DOI: 10.1109/ICSCS.2009.5412266
M. Ghorbel, A. Hamida, J. Tomas
{"title":"CMOS RF powering system for cochlear implant","authors":"M. Ghorbel, A. Hamida, J. Tomas","doi":"10.1109/ICSCS.2009.5412266","DOIUrl":"https://doi.org/10.1109/ICSCS.2009.5412266","url":null,"abstract":"In this paper we present a wireless RF powering system dedicated to a cochlear implant. Most current systems use discrete components to achieve the back telemetry power supply. In order to achieve an efficient power consumption and a minimum size of the implant, our RF powering system is conceived with MOS transistors in order to have an integrated system. Using the signal recovered by the inductive link, the system generates a regulated 3.3 V voltage which is used to generate power supply for the entire implanted device. The system is designed in AMS 0.35µm standard CMOS technology.","PeriodicalId":126072,"journal":{"name":"2009 3rd International Conference on Signals, Circuits and Systems (SCS)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131108292","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
Rapid design of specific MPSoC prototype within FPGA 在FPGA内快速设计特定的MPSoC原型
2009 3rd International Conference on Signals, Circuits and Systems (SCS) Pub Date : 2009-11-01 DOI: 10.1109/ICSCS.2009.5412331
Emna Kallel, Y. Aoudni, M. Abid
{"title":"Rapid design of specific MPSoC prototype within FPGA","authors":"Emna Kallel, Y. Aoudni, M. Abid","doi":"10.1109/ICSCS.2009.5412331","DOIUrl":"https://doi.org/10.1109/ICSCS.2009.5412331","url":null,"abstract":"This paper presents an idea of automatic generation of SoC architecture from a functional specification. Starting from an application task graph, C code will be generated automatically. Then the user can add the specific code of each task. Compilation rules are used in order to have a correct task graph and c code. Finally, an automatic generation of hardware and software SoC architecture will be down to get a new model prototype of the FPGA based SOC platform. We demonstrate the effectiveness of the proposed idea by the implementation of CAGT software tool which can generate efficient and correct C code from a task graph. The generated code is compliant to the ANSI C standard thus can be accepted by most compilers.","PeriodicalId":126072,"journal":{"name":"2009 3rd International Conference on Signals, Circuits and Systems (SCS)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128610902","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
Actuartor fault reconstruction for linear uncertain systems using sliding mode observer 基于滑模观测器的线性不确定系统执行器故障重构
2009 3rd International Conference on Signals, Circuits and Systems (SCS) Pub Date : 2009-11-01 DOI: 10.1109/ICSCS.2009.5412526
S. Dhahri, F. B. Hmida, A. Sellami, M. Gossa
{"title":"Actuartor fault reconstruction for linear uncertain systems using sliding mode observer","authors":"S. Dhahri, F. B. Hmida, A. Sellami, M. Gossa","doi":"10.1109/ICSCS.2009.5412526","DOIUrl":"https://doi.org/10.1109/ICSCS.2009.5412526","url":null,"abstract":"In this paper, we propose a new approach for the analysis and design of sliding-mode observer (SMO) under some matching conditions for a class of for a class of linear uncertain systems. We derive existence conditions sliding mode observers in terms of constrained Linear Matrix Inequalities (LMIs) guaranteeing a stable sliding motion on the switching surface. The gain matrices of the sliding-mode observer are characterized using the solution of the LMI existence condition. The generation of sliding modes permits the reconstruction of faults using the equivalent output injection which based on the available plant input/output information and can be calculated with on-line method. A scale crane example taken from the fault detection literature is used to demonstrate the method and its effectiveness.","PeriodicalId":126072,"journal":{"name":"2009 3rd International Conference on Signals, Circuits and Systems (SCS)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128778031","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
Steam turbine diagnostic system based on a domain ontology implemented using J2EE technology 基于领域本体的汽轮机诊断系统采用J2EE技术实现
2009 3rd International Conference on Signals, Circuits and Systems (SCS) Pub Date : 2009-11-01 DOI: 10.1109/ICSCS.2009.5412694
Klai Sihem, Khadir M. Tarek, J. Ringwood
{"title":"Steam turbine diagnostic system based on a domain ontology implemented using J2EE technology","authors":"Klai Sihem, Khadir M. Tarek, J. Ringwood","doi":"10.1109/ICSCS.2009.5412694","DOIUrl":"https://doi.org/10.1109/ICSCS.2009.5412694","url":null,"abstract":"This paper describes the design and the implementation of an aided diagnostic system based on a domain ontology and an expert system. A mono ontology obtained from multiple CCOs (Canonical Conceptual Ontologies) constitutes the knowledge base of the Expert System. The NCCO (Non Canonical Conceptual Ontology) are defined and used for realising inter-CCO mapping and to express the relationships between the COO. An expert system JESS (Java Expert System Shell) is integrated with the ontology. Knowledge inference is then possible to solve maintenance cases by given adequate diagnoses to given symptoms. The second aspect of the paper focuses on the possible enhancement and evolution of the developed ontology in order to take into account new maintenance cases. The complete system is developed following a J2EE (Java 2 Enterprise Edition) architecture.","PeriodicalId":126072,"journal":{"name":"2009 3rd International Conference on Signals, Circuits and Systems (SCS)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129015919","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
Human walker's detection and localization 人体行走检测与定位
2009 3rd International Conference on Signals, Circuits and Systems (SCS) Pub Date : 2009-11-01 DOI: 10.1109/ICSCS.2009.5412217
Boudour Ammar Cherif, N. Rokbani, A. Alimi, M. B. Ben Khelifa
{"title":"Human walker's detection and localization","authors":"Boudour Ammar Cherif, N. Rokbani, A. Alimi, M. B. Ben Khelifa","doi":"10.1109/ICSCS.2009.5412217","DOIUrl":"https://doi.org/10.1109/ICSCS.2009.5412217","url":null,"abstract":"Vision based Human Robot Interaction (HRI) is one of main interest in our research. The aim of this paper is the detection and localization of a human walker. Our system detects the human walking by tracking the skin, locating the head and the lower part of the body and determination of joints motion. We combine two approaches: skin colour detection and leg motion by the gradient method for gesture recognition. Experimental results have been extracted for a set of sequences in different environments.","PeriodicalId":126072,"journal":{"name":"2009 3rd International Conference on Signals, Circuits and Systems (SCS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132083940","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
Investigation of zirconium oxide based high-k dielectrics for future memory applications 基于氧化锆的高k电介质在未来存储器中的应用研究
2009 3rd International Conference on Signals, Circuits and Systems (SCS) Pub Date : 2009-11-01 DOI: 10.1109/ICSCS.2009.5412231
M. Grube, Dominik Martin, W. Weber, O. Bierwagen, L. Geelhaar, H. Riechert
{"title":"Investigation of zirconium oxide based high-k dielectrics for future memory applications","authors":"M. Grube, Dominik Martin, W. Weber, O. Bierwagen, L. Geelhaar, H. Riechert","doi":"10.1109/ICSCS.2009.5412231","DOIUrl":"https://doi.org/10.1109/ICSCS.2009.5412231","url":null,"abstract":"Zirconium oxide based high-k dielectrics are studied for their possible future integration in Dynamic Random Access Memory (DRAM) Metal-Insulator-Metal (MIM) capacitors. To better understand their electrical properties a combined study is presented considering both their macroscopic and mesoscopic electrical behavior. Molecular beam deposition is used to deposit thin films of ZrO2 as well as (ZrO2) x(Al2O3)1−x. Three different ZrO2 deposition methods are compared and evaluated by capacitance voltage (CV) and current voltage (IV) measurements. These deliver valuable information for benchmarking. To further understand the leakage current mechanism in nanometer thin zirconate based films conductive atomic force microscopy is performed. IV curves are taken with high spatial resolution enabling a detailed comparison between the leakage paths at crystallites and in the amorphous matrix. Through this method the evolution of the leakage path formation can be traced.","PeriodicalId":126072,"journal":{"name":"2009 3rd International Conference on Signals, Circuits and Systems (SCS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129230244","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
首页 上一页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信
小红书