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2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel最新文献

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Recognition of objects in video images using the segmentation algorithm 利用分割算法识别视频图像中的物体
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377113
B. Żak, J. Garus
{"title":"Recognition of objects in video images using the segmentation algorithm","authors":"B. Żak, J. Garus","doi":"10.1109/EEEI.2012.6377113","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377113","url":null,"abstract":"This paper attempts to develop a segmentation algorithm applicable to the issue of recognizing objects in video images. The paper presents the steps of the algorithm with a discussion of techniques used in mathematical morphology, filtration and gradient methods. Also there were presented examples of the results of a verification researches.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133002753","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
Energy efficient addition by two-sided carry-reverse computation 通过双向逆向计算的节能加法
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377135
S. Wimer, A. Stanislavsky, A. Kolodny
{"title":"Energy efficient addition by two-sided carry-reverse computation","authors":"S. Wimer, A. Stanislavsky, A. Kolodny","doi":"10.1109/EEEI.2012.6377135","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377135","url":null,"abstract":"This paper shows how addition can be accelerated by considering the carry as being propagating from LSB and from MSB towards a midpoint. A closed form expression for the optimal midpoint is derived. The acceleration is used to reduce the energy consumed by the adder. A 64 bit adder targeting 500MHz clock frequency, designed in 65 nanometers, consumed 18% less energy and area compared to adder generated by state-of-the-art EDA synthesis tool.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129234762","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
Reed Solomon coding for DECT 里德·所罗门为DECT编码
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376978
A. Reichman, Roy Glikman, Liran Naftaly, Alon Eilam, Moshe Haiut
{"title":"Reed Solomon coding for DECT","authors":"A. Reichman, Roy Glikman, Liran Naftaly, Alon Eilam, Moshe Haiut","doi":"10.1109/EEEI.2012.6376978","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376978","url":null,"abstract":"In order to increase the range of operation of DECT terminals for data transmission, two slots are used per user and Reed Solomon code is proposed with hard decision decoding as well as with erasure decoding. The performances are presented and compared with uncoded transmission using Monte Carlo simulation or AWGN channel without fading and with log-normal fading.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123282895","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
Polyphase guided TEM waves 多相导TEM波
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377001
R. Ianconescu
{"title":"Polyphase guided TEM waves","authors":"R. Ianconescu","doi":"10.1109/EEEI.2012.6377001","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377001","url":null,"abstract":"Guided TEM waves have been usually investigated between 2 conductors. There are several circumstances when one encounters TEM waves guided by multiple conductors, like in flat cables, high frequency polyphase transmission lines, etc. In this work we develop a methodology for multiconductor TEM waves, as follows. The two dimensional Laplace equation for the scalar potential is solved for the given cross section geometr y, having N+1 conductors. Then an N×N elastance matrix is derived, and from it a characteristic impedance matrix, defining the connection between the voltages and the currents of a forward moving wave. From the impedance matrix one calculates the values of N(N+1)/2 resistors network that consist the matched load for the given geometry.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126279889","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
Implementation of quasi-maximum-likelihood detection based on semidefinite relaxation and linear programming 基于半定松弛和线性规划的拟极大似然检测实现
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376987
L. Rapoport, Zeng Yanxing, V. Ivanov, Shen Jianqiang
{"title":"Implementation of quasi-maximum-likelihood detection based on semidefinite relaxation and linear programming","authors":"L. Rapoport, Zeng Yanxing, V. Ivanov, Shen Jianqiang","doi":"10.1109/EEEI.2012.6376987","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376987","url":null,"abstract":"In this paper, a new numerical method is proposed for fast signal detection in large scale MIMO systems. Semidefinite relaxation (SDR) approach is utilized. The SDR problem is further reduced to the sequential linear programming by adding new form of cutting planes and column generation method. Bit error rate (BER) performance results conclude the paper. BER performance is compared with other MIMO detection algorithms. Performance of the new scheme practically identical to performance of the maximum-likelihood detection, while complexity is much less and does not depend on the conditioning number of the channel matrix.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122188334","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
High resolution time-to-space imaging of ultra-short pulses at 1.55μm by non-degenerate SFG in PPLN crystal PPLN晶体中非简并SFG对1.55μm超短脉冲的高分辨率时空成像
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376971
D. Shayovitz, D. Marom, H. Herrmann, W. Sohler, R. Ricken, C. Silberhorn
{"title":"High resolution time-to-space imaging of ultra-short pulses at 1.55μm by non-degenerate SFG in PPLN crystal","authors":"D. Shayovitz, D. Marom, H. Herrmann, W. Sohler, R. Ricken, C. Silberhorn","doi":"10.1109/EEEI.2012.6376971","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376971","url":null,"abstract":"We demonstrate high resolution and increased efficiency background-free time-to-space conversion using spectrally resolved non-degenerate and collinear SFG in a bulk PPLN crystal. A serial-to-parallel resolution factor of 95 and a time window of 42 ps were achieved. A 60-fold increase in conversion efficiency slope compared with our previous work using a BBO crystal [5] was recorded. Finally the measured 40 GHz narrow linewidth of the output SFG signal implies the possibility to extract phase information by employing coherent detection techniques.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126617074","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
The Quasi Lorentz Transformation for rotating objects 旋转物体的拟洛伦兹变换
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377053
D. Censor
{"title":"The Quasi Lorentz Transformation for rotating objects","authors":"D. Censor","doi":"10.1109/EEEI.2012.6377053","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377053","url":null,"abstract":"The Quasi Lorentz Transformation (QLT) introduced recently is a differential first order v/c approximation to the Lorentz Transformation (LT), facilitating the analysis of Electromagnetic (EM) problems involving non-uniform motion. Presently the QLT is applied to Rotating Systems (RS), using the slip-shells model. It is shown that an observer rotating relative to a monochromatic plane wave will measure a Bessel series type frequency spectrum. Scattering by concentric rotating circular cylinders is analyzed. As expected, the scattered wave in the initial frame shows no Doppler frequency shifts. For material cylinders, radiation pattern and scattering coefficients show velocity effects. Moreover, these effects depend on the sense of rotation. Due to the frequency spectrum in the cylinder's rest frame, dispersion effects will be displayed. Unlike the instantaneous velocity approximation model, based on the Minkowski Constitutive Relations (MCR), the present model has the potential of dealing with non axially symmetric rotating scatterers.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120976772","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
Multi beam antennas for cellular networks 用于蜂窝网络的多波束天线
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376959
R. Marino, H. Matzner, E. Levine
{"title":"Multi beam antennas for cellular networks","authors":"R. Marino, H. Matzner, E. Levine","doi":"10.1109/EEEI.2012.6376959","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376959","url":null,"abstract":"Multi-Beam antenna arrays, made by H-plane waveguides with 4, 8 and 12 elements are proposed for cellular base stations. Simulated and experimental results show the beam directions, the gains, the side lobes and the overlapping between close elements, within the requirements for such products (very low loss, high power capability and flexibility in dimensions, in side lobes and in overlapping levels).","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121046736","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
Phase estimation in speech enhancement — Unimportant, important, or impossible? 语音增强中的相位估计——不重要、重要还是不可能?
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376931
Timo Gerkmann, M. Krawczyk, R. Rehr
{"title":"Phase estimation in speech enhancement — Unimportant, important, or impossible?","authors":"Timo Gerkmann, M. Krawczyk, R. Rehr","doi":"10.1109/EEEI.2012.6376931","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376931","url":null,"abstract":"In recent years, research in the field of single channel speech enhancement has focused on the enhancement of spectral amplitudes while the noisy spectral phase was left unchanged. In this paper we review the motivation for neglecting phase estimation in the past, and why recent publications imply that the estimation of the clean speech phase may be beneficial after all. Further, we present an algorithm for blindly estimating the clean speech spectral phase from the noisy observation and show that the application of this phase estimate improves the predicted speech quality.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121605777","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: 29
A new 65nm LP metastability measurment test circuit 一种新型65nm LP亚稳态测量测试电路
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377044
S. Beer, R. Ginosar
{"title":"A new 65nm LP metastability measurment test circuit","authors":"S. Beer, R. Ginosar","doi":"10.1109/EEEI.2012.6377044","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377044","url":null,"abstract":"Recent synchronizer metastability measurements indicate degradation of MTBF with technology scaling, calling for measurement and calibration circuits in 65nm and beyond. Degradation of parameters can be even worse if the system is operated at extreme supply voltages and temperature conditions. In this work we study the behavior of synchronizers in a broad range of supply voltage and temperature corners. A digital on-chip measurement system is presented that helps to characterize synchronizers in future technologies and a new calibrating system to account for supply voltage and temperature changes is shown. Measurements are compared to simulations for a fabricated 65nm bulk CMOS circuit build.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125127519","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
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