发布求助
文献互助 智能选刊 最新文献

2006 IEEE GCC Conference (GCC)最新文献

筛选
英文 中文
Modelling of acoustic signals from Partial discharge activity 部分放电活动声信号的建模
2006 IEEE GCC Conference (GCC) Pub Date : 2006-03-20 DOI: 10.1109/IEEEGCC.2006.5686251
S. Ashraf, B. Stewart, Chengke Zhou, J. M. Jahabar
{"title":"Modelling of acoustic signals from Partial discharge activity","authors":"S. Ashraf, B. Stewart, Chengke Zhou, J. M. Jahabar","doi":"10.1109/IEEEGCC.2006.5686251","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2006.5686251","url":null,"abstract":"This paper presents an initial simulation study of the propagation of Partial discharge (PD) Acoustic Emission (AE) signals from high voltage equipment. The paper helps to investigate the propagation behaviour of the AE waves at the interface of two different media namely oil and steel. Reflection, refraction and scattering of the PD shock waves are simulated and displayed. The initial results show that the signals as expected can alter significantly based on the properties of the oil and the steel. The Partial Differential Equations (PDE) describing the signals have been solved using Finite Element Analysis (FEA). Through studying the theoretical aspects of PD AE signals, researchers and practitioners will better understand the properties and characteristic of PD experimental and practical high voltage equipment signatures e.g. power transformers.","PeriodicalId":433452,"journal":{"name":"2006 IEEE GCC Conference (GCC)","volume":"258 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121482758","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
Comparative performance of embedded coders at high quality 高质量嵌入式编码器的比较性能
2006 IEEE GCC Conference (GCC) Pub Date : 2006-03-20 DOI: 10.1109/IEEEGCC.2006.5686254
S. Djamel, B. Mouldi
{"title":"Comparative performance of embedded coders at high quality","authors":"S. Djamel, B. Mouldi","doi":"10.1109/IEEEGCC.2006.5686254","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2006.5686254","url":null,"abstract":"Embedded Zerotree Wavelet (EZW) coder has become very popular in image compression applications, owing to its simplicity and high coding efficiency. In this paper, we first illustrate the Shapiro algorithm (EZW). In second, we combine the discrete cosine transform (DCT) with an embedded zerotree quantizer in order to obtain the Xiong et al. algorithm (EZDCT). Our aim is to improve the bit rate gotten by EZDCT algorithm while changing the resolution level and to make a comparison with the EZW algorithm. The experiments show that the DCT-based embedded image coder gives higher peak signal-to-noise (PSNR) than Joint Photographic Expert Group (JPEG) and almost similar than Shapiro's EZW coder. Likewise, our contribution also gave an improvement to the results gotten by Zhao et al.","PeriodicalId":433452,"journal":{"name":"2006 IEEE GCC Conference (GCC)","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132277010","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 and torque optimisation of switched reluctance motor 开关磁阻电机分析及转矩优化
2006 IEEE GCC Conference (GCC) Pub Date : 2006-03-20 DOI: 10.1109/IEEEGCC.2006.5686182
W. Aljaism, M. Nagrial, J. Rizk
{"title":"Analysis and torque optimisation of switched reluctance motor","authors":"W. Aljaism, M. Nagrial, J. Rizk","doi":"10.1109/IEEEGCC.2006.5686182","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2006.5686182","url":null,"abstract":"This paper shows the developed torque of a 4 phase 8/6 poles switched reluctance motor by simulation tests. The analysis for the torque is computed by finite element method. The torque optimisation is investigated by changing the pole arc/pole pitch ratio (γ) of the stator, rotor and yoke dimensions.","PeriodicalId":433452,"journal":{"name":"2006 IEEE GCC Conference (GCC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132199786","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
A performance comparison of two time diversity systems using OS-CFAR detection for partially correlated chi-square targets and multiple target situations 使用OS-CFAR检测的两种时分集系统在部分相关卡方目标和多目标情况下的性能比较
2006 IEEE GCC Conference (GCC) Pub Date : 2006-03-20 DOI: 10.1109/IEEEGCC.2006.5686236
T. Laroussi, M. Barkat
{"title":"A performance comparison of two time diversity systems using OS-CFAR detection for partially correlated chi-square targets and multiple target situations","authors":"T. Laroussi, M. Barkat","doi":"10.1109/IEEEGCC.2006.5686236","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2006.5686236","url":null,"abstract":"In radar systems, detection performance is always related to target models and background environments. In time diversity systems, the probability of detection is shown to be sensitive to the degree of correlation among the target echoes. In this paper, we derive exact expressions for the probabilities of false alarm and detection of a pulse-to-pulse partially correlated target with 2K degrees of freedom for the Order Statistics Constant False Alarm Rate (OS-CFAR) detector. The analysis is carried out for the \"non conventional time diversity system\" (NCTDS) and multiple target situations. The obtained results are compared with the \"conventional time diversity system\" (CTDS).","PeriodicalId":433452,"journal":{"name":"2006 IEEE GCC Conference (GCC)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133270478","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
A proposed design for the broadband microwave distributed amplifiers 提出了一种宽带微波分布式放大器的设计方案
2006 IEEE GCC Conference (GCC) Pub Date : 2006-03-20 DOI: 10.1109/IEEEGCC.2006.5686206
A. Ali, A. Kareem
{"title":"A proposed design for the broadband microwave distributed amplifiers","authors":"A. Ali, A. Kareem","doi":"10.1109/IEEEGCC.2006.5686206","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2006.5686206","url":null,"abstract":"In this paper, a new method for the design of the broadband RF/microwave amplifiers employing distributed amplification is presented. It proposes to use stages with asymmetric lumped elements (inductances and capacitances) in the gate and drain circuits of the amplifier instead of symmetric elements in order to control the frequency response and to achieve a flat gain over a large bandwidth. The need for impedance matching problems is also solved. Simulation result obtained demonstrates that the new design gives better frequency response as compared to the conventional distributed amplifiers even without optimization.","PeriodicalId":433452,"journal":{"name":"2006 IEEE GCC Conference (GCC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115959269","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
Radiation of slotted circular or elliptical antenna coated with Isorefractive metamaterials layer 包覆等折射率超材料层的开槽圆形或椭圆天线的辐射
2006 IEEE GCC Conference (GCC) Pub Date : 2006-03-20 DOI: 10.1109/IEEEGCC.2006.5686231
A. Hamid, M. Hussein
{"title":"Radiation of slotted circular or elliptical antenna coated with Isorefractive metamaterials layer","authors":"A. Hamid, M. Hussein","doi":"10.1109/IEEEGCC.2006.5686231","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2006.5686231","url":null,"abstract":"Exact solution to the electromagnetic radiation from a conducting slotted circular or elliptical cylinder coated by an Isorefractive metamaterials is derived by using the separation of variables technique. The fields inside and outside the dielectric layer are expressed in terms of Mathieu functions. No matrix inversion is required after obtaining expressions for the radiated field expansion coefficients by imposing the appropriate boundary conditions. Numerical results ar e plotted for the radiation pattern, aperture conductance and antenna gain. The results show that slotted antenna coated with Isorefractive metamaterials has more directive beam and lower side-lobes compared to that coated with conventional dielectric or metamaterials.","PeriodicalId":433452,"journal":{"name":"2006 IEEE GCC Conference (GCC)","volume":"76 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116290014","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
MSE and BER performances of LMMN receiver in DS-CDMA over frequency-selective slow Rayleigh fading channels 频率选择慢瑞利衰落信道下DS-CDMA LMMN接收机的MSE和BER性能
2006 IEEE GCC Conference (GCC) Pub Date : 2006-03-20 DOI: 10.1109/IEEEGCC.2006.5686255
S. Jimaa, M. E. Jadah
{"title":"MSE and BER performances of LMMN receiver in DS-CDMA over frequency-selective slow Rayleigh fading channels","authors":"S. Jimaa, M. E. Jadah","doi":"10.1109/IEEEGCC.2006.5686255","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2006.5686255","url":null,"abstract":"This paper investigates the performance of using the Least-Mean-Mixed-Norm algorithm (LMMN) in the adaptation of asynchronous DS-CDMA slow fading, non-linear receiver. The investigations study the effect of using various mixing parameter (λ) and step-size (μ) on the performance of the proposed algorithm in terms of mean-square error (MSE) and bit-error-rate (BER). Computer simulation results indicate that LMMN with lamda (K) equals 0.9 and step-size (μ) equals 5×10-3 give the best performance. Moreover it is demonstrated that non-linear receivers adapted by the proposed algorithm have faster convergence rate and similar BER performance, in comparison with the NLMS adaptive receiver.","PeriodicalId":433452,"journal":{"name":"2006 IEEE GCC Conference (GCC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116997257","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
An enhanced forward-link scheduling algorithm for cdma2000 1× EV-DO cdma2000 1x EV-DO的前向链路调度算法
2006 IEEE GCC Conference (GCC) Pub Date : 2006-03-20 DOI: 10.1109/IEEEGCC.2006.5686194
Qu Yajiang
{"title":"An enhanced forward-link scheduling algorithm for cdma2000 1× EV-DO","authors":"Qu Yajiang","doi":"10.1109/IEEEGCC.2006.5686194","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2006.5686194","url":null,"abstract":"cdma2000 1× EV-DO system is originally designed to support high date rate services, but with the development of demand, it is expected to serve some other traffic such as VoIP which belong to conversational QoS class and interactive games. In traditional EV-DO system forward link scheduling, proportional fair (PF) algorithm is used, which doesn't consider QoS like delay and loss, so it can't work when different QoS requirement users are waiting to be served by the same AN(Access Network). To solve this problem, in the latest release of EV-DO specification, a Multi-User packet (MUP) scheme is introduced. Security layer Packets from different ATs (Access Terminal) can be packed into a same MAC layer packet and then be transmitted to the physical layer, however, when should AN use MUP and how to schedule different users to fill this MUP is a problem. A proper scheduling algorithm must be used to optimize system performance. In this paper, we propose a forward link scheduling algorithm supporting the MUP scheme and show performance of EV-DO system under this scheduler.","PeriodicalId":433452,"journal":{"name":"2006 IEEE GCC Conference (GCC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117203609","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
Looking for the best spectral resolution in automatic speaker recognition 寻找最佳的光谱分辨率在自动扬声器识别
2006 IEEE GCC Conference (GCC) Pub Date : 2006-03-20 DOI: 10.1109/IEEEGCC.2006.5686247
H. Sayoud, S. Ouamour
{"title":"Looking for the best spectral resolution in automatic speaker recognition","authors":"H. Sayoud, S. Ouamour","doi":"10.1109/IEEEGCC.2006.5686247","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2006.5686247","url":null,"abstract":"In this research work we look for the optimal spectral resolution for speaker authentication in quiet and noisy environment, using the speech signal (microphonic and telephonic bandwidths). This problem is investigated according to several conditions. For this purpose, we investigated the effect of the spectral resolution in speaker identification performance. During this research work, we implemented a statistical approach based on second order statistical measures and using the normalised Mel-spectral energies (MFSC). In order to find the optimal spectral resolution, in microphonic and telephonic bandwidth, we tested several dimensions for the MFSC vector (Normalised Mel energies) ranging from 12 to 60 and several types of additive noise (white noise, car noise and racket noise) at several SNR ratios. Results show that the optimal spectral dimension depends on the experimental conditions. So, we noticed the importance of the high spectral resolution of 60 coefficients / 8 kHz for the [0-8 kHz] bandwidth and the resolution of 48 coefficients / 8 kHz for the [0.3-3.4 kHz] bandwidth (especially in noisy environment), whereas the actual works have always favoured resolutions less than 24 coefficients in such tasks. For example, we note an improvement of about 11% in the recognition score, since we increase the resolution from 24 to 48 MFSC for the telephonic bandwidth.","PeriodicalId":433452,"journal":{"name":"2006 IEEE GCC Conference (GCC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126900438","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
AGC of a hydrothermal system with SMES unit 带SMES装置的水热系统AGC
2006 IEEE GCC Conference (GCC) Pub Date : 2006-03-20 DOI: 10.1109/IEEEGCC.2006.5686181
R. J. Abraham, D. Das, A. Patra
{"title":"AGC of a hydrothermal system with SMES unit","authors":"R. J. Abraham, D. Das, A. Patra","doi":"10.1109/IEEEGCC.2006.5686181","DOIUrl":"https://doi.org/10.1109/IEEEGCC.2006.5686181","url":null,"abstract":"In this paper, the AGC improvement of a two area interconnected hydrothermal system along with a Superconducting Magnetic Energy Storage is proposed. Generation Rate Constraints are also considered. Integral Squared Error technique is used to obtain the optimum values of the integral gain settings. Analysis reveals that the dynamic responses are considerably improved in the presence of the SMES unit. A comparison and analysis of the dynamic performances without and with SMES unit in the presence of GRC brings out the superior performance of the SMES unit in suppressing the frequency and inter-area tie-power deviations from their nominal values followed by a step load perturbation.","PeriodicalId":433452,"journal":{"name":"2006 IEEE GCC Conference (GCC)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126172168","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
首页 上一页 下一页 尾页
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：481959085
Book学术官方微信