2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel最新文献_第8页

Machine-learning-based circuit synthesis 基于机器学习的电路合成

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377134

L. Rokach, Meir Kalech, G. Provan, A. Feldman

引用次数: 6

Disproof of the Shamai-Laroia conjecture Shamai-Laroia猜想的反证

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377098

Y. Carmon, S. Shamai, T. Weissman

引用次数: 5

The Jacobi MIMO channel: Achieving the no-outage promise 雅可比MIMO信道:实现无中断的承诺

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376939

R. Dar, M. Feder, M. Shtaif

引用次数: 2

PID autotuning using relay feedback PID自整定采用继电器反馈

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377118

S. Levy, S. Korotkin, K. Hadad, A. Ellenbogen, M. Arad, Y. Kadmon

{"title":"PID autotuning using relay feedback","authors":"S. Levy, S. Korotkin, K. Hadad, A. Ellenbogen, M. Arad, Y. Kadmon","doi":"10.1109/EEEI.2012.6377118","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377118","url":null,"abstract":"PID autotuning algorithms based on relay feedback are used to identify different points of the process frequency response before performing the actual tuning procedure. These algorithms require minimal amount of priori information about the controlled process, they are also insensitive to modeling errirs and disturbances. In this paper, a PID autotuning procedure implementation based on Åström and Hägglund's method (1984) is presented. The procedure is based on the estimation of the ultimate gain and ultimate frequency using a relay test signal in closed loop. This signal, which is generated automatically, forces the controlled process variable to oscillate at the ultimate frequency with limited amplitude. The only design parameter to be set is the relay amplitude which is inherently relatively small. The PID parameters are calculated using the Ziegler-Nichols tuning rules. In the case where the system is completely unknown, an initial tuning is required before the system can reach the set point, afterwards, a more accurate estimation is made. In case of linear systems, the ultimate gain and the ultimate frequency extracted from the initial tuning are expected to be similar to those extracted from the fine tuning. In case of non-linear systems, estimation should be conducted for each change of the set point. Furthermore, the PID parameters extracted in the procedure can be used either for initialization of other advanced optimization algorithms or for calibrating complicated adaptive regulators.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"40 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":"128089070","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: 12

On distortion-yes PAPR reduction methods 关于扭曲-是的PAPR减少方法

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377092

I. Iofedov, I. Gutman, D. Wulich

引用次数: 0

Wireless range measurement and positioning using multicarrier techniques 使用多载波技术的无线距离测量和定位

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376906

A. Bensky

引用次数: 0

Non-intrusive regularization for least-squares multichannel equalization for speech dereverberation 语音去噪最小二乘多通道均衡的非侵入式正则化

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376964

I. Kodrasi, S. Doclo, Stefan Goetze

{"title":"Non-intrusive regularization for least-squares multichannel equalization for speech dereverberation","authors":"I. Kodrasi, S. Doclo, Stefan Goetze","doi":"10.1109/EEEI.2012.6376964","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376964","url":null,"abstract":"Acoustic multichannel equalization techniques for speech dereverberation are known to be highly sensitive to estimation errors of the room impulse responses. In order to increase robustness, it has been proposed to incorporate regularization. However, the optimal regularization parameter which yields the highest perceptual speech quality has generally been determined intrusively, limiting the practical applicability. In this paper, we propose an automatic non-intrusive procedure for determining the regularization parameter based on the L-curve. Experimental results show that using such an automatic non-intrusive regularization parameter in a recently proposed partial multichannel equalization technique (P-MINT) leads to a very similar performance as using the intrusively determined optimal regularization parameter. Furthermore, it is shown that the automatically regularized P-MINT technique outperforms state-of-the-art multichannel equalization techniques such as channel shortening and relaxed multichannel least-squares, both in terms of reverberant tail suppression and perceptual speech quality.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"158 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":"123449345","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

Entropy-coded quantization of periodic nonuniform samples 周期性非均匀样本的熵编码量化

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376953

A. Mashiach, R. Zamir

引用次数: 2

Broadcasting with mixed delay demands 具有混合延迟需求的广播

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377116

K. Cohen, A. Steiner, S. Shamai

引用次数: 1

Characterization of single and three phase power rectifiers with passive and active loads 无源负载和有源负载下单相和三相功率整流器的特性

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376918

R. Rabinovici, M. Avital, K. J. Dagan

{"title":"Characterization of single and three phase power rectifiers with passive and active loads","authors":"R. Rabinovici, M. Avital, K. J. Dagan","doi":"10.1109/EEEI.2012.6376918","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376918","url":null,"abstract":"We formulate a new approach to the characterization of general power rectifiers with either passive or active loads. We introduce 3-D manifolds of an input current THD and an output ripple. We define the axes of these manifolds as normalized (no source frequency dependent) time-constants of the rectifier, which we found to be the most appropriate to a rectifier characterization. The x-axis is one time-constant of the rectifier which is related to the circuit resonance (caused by the input inductance - L and the capacitive load - C), and the y-axis is the other time-constant of the rectifier which is related to the output ripple (caused by the resistive-capacitive load - RC). In addition, we formulate a new characterization for the mentioned parameters, when an active load (e.g. inverter) is connected. In this case, inter-harmonics caused by the active load, must be considered when characterizing the THD of its input current and output ripple. We introduce 3-D (THD) manifolds of an input current with the new defined axes, when the z-axis is defined as one of the inter-modulation harmonics, caused by the active load. Theoretical results are validated through simulations and lab experiments. Experimental results show high correlation to theoretical analysis. These findings could serve as a simple, useful and quick way for a rectifier characterization.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"46 44 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":"131273892","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