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

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Wireless body-area network for detection of sleep disorders 用于检测睡眠障碍的无线体域网络
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377041
Abed Nassir, O. Barnea
{"title":"Wireless body-area network for detection of sleep disorders","authors":"Abed Nassir, O. Barnea","doi":"10.1109/EEEI.2012.6377041","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377041","url":null,"abstract":"Sleep disorders are presently detected using multi-sensor wired system. The Polysomnography (PSG) system, a comprehensive system for recording physiological signals during sleep, monitors the body functions during sleep. Measurements include EEG, EOG, muscle activity or skeletal muscle activation (EMG), heart rhythm (ECG) and breathing functions such as respiratory airflow and respiratory effort. The test is conducted in sleep laboratories or in the patient's home using wired sensors that affect the quality of sleep and thereby affect the quality of the test. A system that is intended to free the patient from the cumbersome cables was developed: a distributed wireless system with 8 channels of physiological sleep measurement signals. The signals at each body area are amplified, filtered, sampled and partially processed locally at the measurement site using TI MSP430 processors. Each group of adjacent sensors is connected to a local processor and the data is transmitted to a central switchboard unit using SimpliciTI technology. The center unit further arranges the data and forwards it to a Bluetooth transceiver (EZ430-RF2560). The Bluetooth transceiver is A Universal Asynchronous Receiver/Transmitter, UART. We use the UART to communicate between two peripheral device serial ports. The Bluetooth transceiver transmits the data to the end-device: a personal computer or a tablet. Data is presented on the end-device in real time and is analyzed to validate quality of measurement according to known signal statistics. At the end of the measurement session, the data is further analyzed to detect sleep stages and respiration abnormalities This system will allow measurements of respiratory effort that will be compared with actual air-flow and arterial blood oxygen saturation. The long term goal is to develop a minimal set of physiological measurements that will reliably assess sleep apnea.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"19 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":"126485356","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
Comparison of supervised and semi-supervised beamformers using real audio recordings 使用真实录音的监督和半监督波束形成器的比较
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376965
F. Heese, M. Schafer, P. Vary, E. Hadad, S. M. Golan, S. Gannot
{"title":"Comparison of supervised and semi-supervised beamformers using real audio recordings","authors":"F. Heese, M. Schafer, P. Vary, E. Hadad, S. M. Golan, S. Gannot","doi":"10.1109/EEEI.2012.6376965","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376965","url":null,"abstract":"In this contribution two different disciplines for designing microphone array beamformers are explored. On the one hand a fixed beamformer based on numerical near field optimization is employed. On the other hand an adaptive beamformer algorithm based on the linearly constrained minimum variance (LCMV) method is applied. For the evaluation, an audio-database for microphone array impulse responses and audio recordings (speech and noise) was created. Different acoustic scenarios were constructed, consisting of various audio sources (desired speaker, interfering speaker and directional noise) distributed around the microphone array at different angles and distances. The algorithms were compared based on both objective measure (signal-to-noise, signal-to-interference and speech distortion, and subjective tests (assessment of sonograms and informal listening tests).","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"46 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":"132122434","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
An extended metastability simulation method; Extended node short simulation (ENSS) 一种扩展亚稳态模拟方法;扩展节点短仿真(ENSS)
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377013
S. Beer, R. Ginosar
{"title":"An extended metastability simulation method; Extended node short simulation (ENSS)","authors":"S. Beer, R. Ginosar","doi":"10.1109/EEEI.2012.6377013","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377013","url":null,"abstract":"Synchronizers play a key role in multi-clock domain systems on chip. One of the essential points in designing reliable synchronizers is to estimate and evaluate synchronizer parameters and Typically, evaluation of these parameters has been done by empirical rules of thumb or simple circuit simulations to ensure that the synchronizer MTBF is sufficiently long. This paper shows that those rules of thumb and some common simulation method are unable to predict correct synchronizer parameters in deep sub-micron technologies. We propose a new simulation method to estimate synchronizer characteristics more reliably and compare the results obtained with other state of the art simulation methods. Simulation results for each of the analyzed methods are compared with measurements of a 65nm LP CMOS test-chip.","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":"130183117","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
FPGA-based data compressor based on prediction by partial matching 基于部分匹配预测的fpga数据压缩器
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377120
Joel Ratsaby, V. Sirota
{"title":"FPGA-based data compressor based on prediction by partial matching","authors":"Joel Ratsaby, V. Sirota","doi":"10.1109/EEEI.2012.6377120","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377120","url":null,"abstract":"We design and develop a data compression engine on a single FPGA chip that is used as part of a text-classification application. The implementation of the prediction by partial matching algorithm and arithmetic coding data compression is totally in hardware without any software code. Our design implements a dynamic data structure to store the symbol frequency counts up to maximal order of 2. The computation of the tag-interval that encodes the data sequence in arithmetic coding is done in a parallel architecture that achieves a high speedup factor. Even with a relatively slow 50 Mhz clock our hardware engine performs more than 70 times faster than a software-based implementation in C on a CPU running on a 3 Ghz clock.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"24 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":"130424507","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
On channels with asynchronous state information at the transmitter 在发送端具有异步状态信息的信道上
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377017
M. Yemini, A. Somekh-Baruch, Amir Leshem
{"title":"On channels with asynchronous state information at the transmitter","authors":"M. Yemini, A. Somekh-Baruch, Amir Leshem","doi":"10.1109/EEEI.2012.6377017","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377017","url":null,"abstract":"A state dependent channel with asynchronous side information at the transmitter is introduced. It is assumed that the state information sequence is a possibly delayed version of the state sequence. The encoder and the decoder are aware of the fact that the state information might be delayed, and an upper bound on the delay is also known, but other than that, they are ignorant of the actual delay. We consider both the causal and the non-causal cases and present achievable rates for these channels, and the corresponding coding schemes. In the non-causal case, the coding scheme is based on an adaptation of the Gelfand-Pinsker binning scheme. In the causal case, we present a coding scheme whose structure depends on the values the delay may take. We further study the special case of the binary symmetric asynchronous state dependent channel with non-causal side information at the transmitter. Additionally, we find the capacity of the asynchronous Gelfand-Pinsker channel with feedback.","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":"134238448","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
New approach to estimation of harmonic signal with unknown frequency 未知频率谐波信号估计的新方法
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376928
I. Rusnak, L. Peled-Eitan
{"title":"New approach to estimation of harmonic signal with unknown frequency","authors":"I. Rusnak, L. Peled-Eitan","doi":"10.1109/EEEI.2012.6376928","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376928","url":null,"abstract":"The problem of estimation of harmonic signal parameters - the frequency, amplitude and phase is dealt with. The existing approaches for constant unknown frequency are reviewed. The fact that a harmonic signal can be represented as a rotating two dimensional vector is exploited. This can be intuitively seen when harmonic signal is represented by I and Q components, i.e. it is a two dimensional signal that embodies a circle in the two dimensional plane as a rotating vector. A novel approach for estimation is presented. This approach is motivated by the problem of tracking and estimating a maneuvering target. It is based on the equations of motion of a rotating vector. The equivalence between these two problems is elaborated. Simulations demonstrate the vitality of the approach.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"13 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":"133619424","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
Frequency dependent negative resistor based on differential-input buffered and transconductance amplifier 基于差分输入缓冲和跨导放大器的频率相关负电阻器
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377062
J. Vavra, J. Bajer, D. Biolek
{"title":"Frequency dependent negative resistor based on differential-input buffered and transconductance amplifier","authors":"J. Vavra, J. Bajer, D. Biolek","doi":"10.1109/EEEI.2012.6377062","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377062","url":null,"abstract":"The purpose of the paper is to introduce a novel application of the modern active building block, namely Differential-input Buffered and Transconductance Amplifier (DBTA). The circuit proposed is a Frequency Dependent Negative Resistor (FDNR), which requires one DBTA and only two grounded capacitors. These features make it suitable for full integration on a chip. For the purpose of experimental verification, the proposed circuit was implemented using commercially available components and properly tested in an application of ladder filter. Experimental results are in a full agreement with theoretical expectations as well as PSpice simulation.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"38 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":"133690375","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
Accelerating Particle filter using multiscale methods 多尺度加速粒子滤波方法
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377009
Y. Shmueli, G. Shabat, A. Bermanis, A. Averbuch
{"title":"Accelerating Particle filter using multiscale methods","authors":"Y. Shmueli, G. Shabat, A. Bermanis, A. Averbuch","doi":"10.1109/EEEI.2012.6377009","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377009","url":null,"abstract":"We present a method that accelerates the Particle Filter computation. Particle Filter is a powerful method for tracking the state of a target based on non-linear observations. Unlike the conventional way of calculating weights over all particles in each run, we sample a small subset of the particles using matrix decomposition methods, followed by a novel function extension algorithm to recover the density function of all particles. This significantly reduces the computational load where the measurement computation is substantial, as often happens, for example, when tracking targets in videos. We demonstrate our method on both simulated data and real data (videos).","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"51 2 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":"124213312","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
Time-dependent coupled mode analysis of advanced photonic micro devices 先进光子微器件的时变耦合模分析
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376922
E. Smith, V. Shteeman, A. Hardy
{"title":"Time-dependent coupled mode analysis of advanced photonic micro devices","authors":"E. Smith, V. Shteeman, A. Hardy","doi":"10.1109/EEEI.2012.6376922","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376922","url":null,"abstract":"Coupled Mode Theory (CMT) is a well-established formalism widely used in the analysis of propagation and interaction of electromagnetic modes in arrays of parallel waveguides, coupled resonator optical waveguides (CROWs), phase-locked arrays of VCSELs etc. So far, CMT analysis considered only situations where both the dielectric function and the input optical signal were assumed to be time-independent. In this work, we extended the CMT analysis to Time-Dependent CMT (TD CMT) in order to include photonic devices with temporal variations of the dielectric function as well as alternating input optical signals. We found TD CMT shows a strong advantage in time and resources consumption over traditional computational techniques in the analysis and design of photonic devices.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"41 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":"114493025","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
An adaptive up/down transceiver-power control methodology for IEEE 802.15.4a UWB ranging in multi-path environments 多径环境下IEEE 802.15.4a超宽带测距的自适应上/下收发器功率控制方法
2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376937
Tingcong Ye, M. Walsh, B. O’flynn, C. O'Mathúna
{"title":"An adaptive up/down transceiver-power control methodology for IEEE 802.15.4a UWB ranging in multi-path environments","authors":"Tingcong Ye, M. Walsh, B. O’flynn, C. O'Mathúna","doi":"10.1109/EEEI.2012.6376937","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376937","url":null,"abstract":"This paper presents an experimental analysis for low Signal to Noise Ratio, 802.15.4a UWB based ranging problem in multi-path environment. The benefits of transceiver-power control methodology are considered at two levels: (1) active management of the ranging performance at the base station; (2) a power control loop is presented at the mobile node where the effects of multi-path propagation on the uplink between mobile node and the base station are the major factors influencing the ranging performance. The UWB ranging capabilities of the system employing the adaptive up/down transceiver-power control methodology are examined in detail and practically validated in a multi-path environment. A comparison is then made with the pre-existing non-power control method which uses maximum transmit-power of FCC limits only. Significant channel stability and accuracy improvements are highlighted for the proposed transceiver-power control paradigm.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"41 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":"116882373","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
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