Pub Date : 2018-12-01DOI: 10.1109/ICSEE.2018.8646128
Oz Sorkin, E. Farber, M. Averbukh
The use of low-pass filters for smoothing energy flows in different applications is remarkable. However, in the case of a power (instead of a voltage) source, this circuit becomes non-linear and its transient process is difficult to assess. Such cases are typical for renewable (PV and wind turbine) plants being equipped with DC-AC power converters.Submitted in the presented article is an approximation procedure, which gives a linearization and an efficiently approachable technique to compare real current (voltage) curves with estimated results. As a result, the development of low-pass filter fed by power source becomes relatively simple task.
{"title":"Linear Approximation of Transient Process in R-C Circuit Fed by Power Source","authors":"Oz Sorkin, E. Farber, M. Averbukh","doi":"10.1109/ICSEE.2018.8646128","DOIUrl":"https://doi.org/10.1109/ICSEE.2018.8646128","url":null,"abstract":"The use of low-pass filters for smoothing energy flows in different applications is remarkable. However, in the case of a power (instead of a voltage) source, this circuit becomes non-linear and its transient process is difficult to assess. Such cases are typical for renewable (PV and wind turbine) plants being equipped with DC-AC power converters.Submitted in the presented article is an approximation procedure, which gives a linearization and an efficiently approachable technique to compare real current (voltage) curves with estimated results. As a result, the development of low-pass filter fed by power source becomes relatively simple task.","PeriodicalId":254455,"journal":{"name":"2018 IEEE International Conference on the Science of Electrical Engineering in Israel (ICSEE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115474745","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}
Pub Date : 2018-12-01DOI: 10.1109/ICSEE.2018.8646060
Hua-cheng Zhou, G. Weiss
In this paper we solve the tracking and disturbance rejection problem for an unstable wave equation with reference and disturbance signals that are generated by a linear exosystem whose eigenvalues are located on the imaginary axis. We consider both unmatched disturbance at the boundary and also in the domain, and also matched disturbance at the control boundary. To make the control design more easy, the in-domain disturbance is first shifted to the control boundary by introducing a new variable transformation, and the anti-stable boundary term is then transformed into a dissipative boundary term by constructing a transport equation. We find an ordinary differential equation (ODE) with delay that describes the relationship between the output tracking error and the coupled signals consisting of the disturbance and reference signal, by using Riemann variables. Based on this ODE with delay, we apply the internal model principle to find the dynamic controller that achieves the output regulation while rejecting the disturbances, and uses only the tracking error as input.
{"title":"Internal model based tracking and disturbance rejection for an unstable wave equation","authors":"Hua-cheng Zhou, G. Weiss","doi":"10.1109/ICSEE.2018.8646060","DOIUrl":"https://doi.org/10.1109/ICSEE.2018.8646060","url":null,"abstract":"In this paper we solve the tracking and disturbance rejection problem for an unstable wave equation with reference and disturbance signals that are generated by a linear exosystem whose eigenvalues are located on the imaginary axis. We consider both unmatched disturbance at the boundary and also in the domain, and also matched disturbance at the control boundary. To make the control design more easy, the in-domain disturbance is first shifted to the control boundary by introducing a new variable transformation, and the anti-stable boundary term is then transformed into a dissipative boundary term by constructing a transport equation. We find an ordinary differential equation (ODE) with delay that describes the relationship between the output tracking error and the coupled signals consisting of the disturbance and reference signal, by using Riemann variables. Based on this ODE with delay, we apply the internal model principle to find the dynamic controller that achieves the output regulation while rejecting the disturbances, and uses only the tracking error as input.","PeriodicalId":254455,"journal":{"name":"2018 IEEE International Conference on the Science of Electrical Engineering in Israel (ICSEE)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115548467","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}
Pub Date : 2018-12-01DOI: 10.1109/ICSEE.2018.8646169
Harel Brestel, Z. Zalevsky, A. Karsenty
The expected performances of an Enhanced Optical Tunable Excited Capacitor (EOTEC) have been studied, as part of a large effort to develop optoelectronic high-speed devices for optical communication. The influence of nano/micro-crystal dots, embedded in a thick SiO2 film grown on a silicon substrate, has been studied as a function of several parameters such as the sweep rate, the penetration depth, the dots size and the various materials properties of several elements. We numerically demonstrate capabilities of future faster optoelectronic responsivity. The obtained series of C-V curves enable a good forecast of the possible usage and applications, such as MOSFET, tunable capacitor, memory unit, and Boolean logic element.
{"title":"Enhanced Optical Tunable Excited Capacitor (EOTEC) for Faster Responsivity","authors":"Harel Brestel, Z. Zalevsky, A. Karsenty","doi":"10.1109/ICSEE.2018.8646169","DOIUrl":"https://doi.org/10.1109/ICSEE.2018.8646169","url":null,"abstract":"The expected performances of an Enhanced Optical Tunable Excited Capacitor (EOTEC) have been studied, as part of a large effort to develop optoelectronic high-speed devices for optical communication. The influence of nano/micro-crystal dots, embedded in a thick SiO2 film grown on a silicon substrate, has been studied as a function of several parameters such as the sweep rate, the penetration depth, the dots size and the various materials properties of several elements. We numerically demonstrate capabilities of future faster optoelectronic responsivity. The obtained series of C-V curves enable a good forecast of the possible usage and applications, such as MOSFET, tunable capacitor, memory unit, and Boolean logic element.","PeriodicalId":254455,"journal":{"name":"2018 IEEE International Conference on the Science of Electrical Engineering in Israel (ICSEE)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115703073","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}
Pub Date : 2018-12-01DOI: 10.1109/ICSEE.2018.8646287
Roni Ash, Dolev Ofri, Jonathan Brokman, Idan Friedman, Y. Moshe
Crossing a road is a dangerous activity for pedestrians and therefore pedestrian crossings and intersections often include pedestrian-directed traffic lights. These traffic lights may be accompanied by audio signals to aid the visually impaired. In many cases, when such an audio signal is not available, a visually impaired pedestrian cannot cross the road without help. In this paper, we propose a technique that may help visually impaired people by detecting pedestrian traffic lights and their state (walk/don’t walk) from video taken with a mobile phone camera. The proposed technique consists of two main modules- an object detector that uses a deep convolutional network, and a decision module. We investigate two variants for object detection (Faster R-CNN combined with a KCF tracker, or Tiny YOLOv2) and compare them. For better robustness, we exploit the fact that abrupt switching from red to green or vice versa is unique to traffic lights. The proposed technique aims to operate on a mobile phone in a client-server architecture. It proves to be fast and accurate with running time of 6 ms per frame on a desktop computer with GeForce GTX 1080 GPU and detection accuracy of more than 99%.
{"title":"Real-time Pedestrian Traffic Light Detection","authors":"Roni Ash, Dolev Ofri, Jonathan Brokman, Idan Friedman, Y. Moshe","doi":"10.1109/ICSEE.2018.8646287","DOIUrl":"https://doi.org/10.1109/ICSEE.2018.8646287","url":null,"abstract":"Crossing a road is a dangerous activity for pedestrians and therefore pedestrian crossings and intersections often include pedestrian-directed traffic lights. These traffic lights may be accompanied by audio signals to aid the visually impaired. In many cases, when such an audio signal is not available, a visually impaired pedestrian cannot cross the road without help. In this paper, we propose a technique that may help visually impaired people by detecting pedestrian traffic lights and their state (walk/don’t walk) from video taken with a mobile phone camera. The proposed technique consists of two main modules- an object detector that uses a deep convolutional network, and a decision module. We investigate two variants for object detection (Faster R-CNN combined with a KCF tracker, or Tiny YOLOv2) and compare them. For better robustness, we exploit the fact that abrupt switching from red to green or vice versa is unique to traffic lights. The proposed technique aims to operate on a mobile phone in a client-server architecture. It proves to be fast and accurate with running time of 6 ms per frame on a desktop computer with GeForce GTX 1080 GPU and detection accuracy of more than 99%.","PeriodicalId":254455,"journal":{"name":"2018 IEEE International Conference on the Science of Electrical Engineering in Israel (ICSEE)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124317463","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}
Pub Date : 2018-12-01DOI: 10.1109/ICSEE.2018.8646214
Mohammed Zafar Ali Khan
In many communications and signal processing optimization problems, the water-filling problem plays an important role in resource optimization. In this paper we show that the water-filling problem is equivalent to the classical Knapsack Problem, which is known to be NP-hard. Consequently, using the linear complexity solutions for water-filling problems and the equivalence of Knapsack Problem with water-filling problem, we present new linear time approximate solutions for Knapsack problem.
{"title":"The equivalence of Knapsack and Waterfilling problems","authors":"Mohammed Zafar Ali Khan","doi":"10.1109/ICSEE.2018.8646214","DOIUrl":"https://doi.org/10.1109/ICSEE.2018.8646214","url":null,"abstract":"In many communications and signal processing optimization problems, the water-filling problem plays an important role in resource optimization. In this paper we show that the water-filling problem is equivalent to the classical Knapsack Problem, which is known to be NP-hard. Consequently, using the linear complexity solutions for water-filling problems and the equivalence of Knapsack Problem with water-filling problem, we present new linear time approximate solutions for Knapsack problem.","PeriodicalId":254455,"journal":{"name":"2018 IEEE International Conference on the Science of Electrical Engineering in Israel (ICSEE)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117324028","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}
Pub Date : 2018-12-01DOI: 10.1109/ICSEE.2018.8646090
H. Beit-On, B. Rafaely
Speaker localization in reverberant environments is an important and timely challenge in audio signal processing, with new methods recently developed to meet this challenge. One of these methods is the direct-path dominance (DPD) test showing robustness to both reverberation and noise. However, this method has been developed for processing in the spherical harmonics domain and is restricted to microphone arrays with a spherical configuration. In this paper, we propose a new method for extending the DPD test approach to arrays with arbitrary configuration, by removing the frequency dependence of the steering matrices using local focusing transformations to support frequency-smoothing and robustness to reverberation. A simulation study for evaluating the performance of the method for a binaural array is presented, validating the theoretical developments.
{"title":"Speaker localization using the direct-path dominance test for arbitrary arrays","authors":"H. Beit-On, B. Rafaely","doi":"10.1109/ICSEE.2018.8646090","DOIUrl":"https://doi.org/10.1109/ICSEE.2018.8646090","url":null,"abstract":"Speaker localization in reverberant environments is an important and timely challenge in audio signal processing, with new methods recently developed to meet this challenge. One of these methods is the direct-path dominance (DPD) test showing robustness to both reverberation and noise. However, this method has been developed for processing in the spherical harmonics domain and is restricted to microphone arrays with a spherical configuration. In this paper, we propose a new method for extending the DPD test approach to arrays with arbitrary configuration, by removing the frequency dependence of the steering matrices using local focusing transformations to support frequency-smoothing and robustness to reverberation. A simulation study for evaluating the performance of the method for a binaural array is presented, validating the theoretical developments.","PeriodicalId":254455,"journal":{"name":"2018 IEEE International Conference on the Science of Electrical Engineering in Israel (ICSEE)","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124059709","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}
Pub Date : 2018-12-01DOI: 10.1109/ICSEE.2018.8646078
Y. Birk, Tamir Friedman
RotorNet comprises switches that provide direct all-to-all connectivity among data-center nodes by cycling among all cyclic shift permutations. Combined with two-hop routing, whereby packets traverse the optical network twice, they provide high throughput regardless of the traffic pattern and with no need for centralized control. Although being a circuit-switched optical interconnect intended primarily for latency-insensitive traffic, reducing latency saves energy and buffer space, and is thus important. We show that latency can be reduced by properly timing the transmissions by the sender, and offer insights along with some useful results.
{"title":"Transmission Timing on Optical Data-Center RotorNet for Reduced Cost, Energy and Latency","authors":"Y. Birk, Tamir Friedman","doi":"10.1109/ICSEE.2018.8646078","DOIUrl":"https://doi.org/10.1109/ICSEE.2018.8646078","url":null,"abstract":"RotorNet comprises switches that provide direct all-to-all connectivity among data-center nodes by cycling among all cyclic shift permutations. Combined with two-hop routing, whereby packets traverse the optical network twice, they provide high throughput regardless of the traffic pattern and with no need for centralized control. Although being a circuit-switched optical interconnect intended primarily for latency-insensitive traffic, reducing latency saves energy and buffer space, and is thus important. We show that latency can be reduced by properly timing the transmissions by the sender, and offer insights along with some useful results.","PeriodicalId":254455,"journal":{"name":"2018 IEEE International Conference on the Science of Electrical Engineering in Israel (ICSEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130059159","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}
Pub Date : 2018-12-01DOI: 10.1109/ICSEE.2018.8646186
M. Čerňan, M. Müller, Z. Müller, J. Tlustý, V. Valouch
A model based predictive direct power control with finite set of control variables for the three phase four-switch-based converter B4 connected to an unbalanced grid is introduced. The instantaneous active and non-active powers are outputs of the controlled system. The alternative instantaneous non-active power theory is used that preserves harmonic free grid currents not only for a symmetrical but also unsymmetrical voltage system. Simulation results for the L grid filter are presented and analyzed.
{"title":"Model Predictive Direct Power Control of Four-Switch-Based Inverter Connected to Unbalanced Grid System","authors":"M. Čerňan, M. Müller, Z. Müller, J. Tlustý, V. Valouch","doi":"10.1109/ICSEE.2018.8646186","DOIUrl":"https://doi.org/10.1109/ICSEE.2018.8646186","url":null,"abstract":"A model based predictive direct power control with finite set of control variables for the three phase four-switch-based converter B4 connected to an unbalanced grid is introduced. The instantaneous active and non-active powers are outputs of the controlled system. The alternative instantaneous non-active power theory is used that preserves harmonic free grid currents not only for a symmetrical but also unsymmetrical voltage system. Simulation results for the L grid filter are presented and analyzed.","PeriodicalId":254455,"journal":{"name":"2018 IEEE International Conference on the Science of Electrical Engineering in Israel (ICSEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130844036","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}
Pub Date : 2018-12-01DOI: 10.1109/ICSEE.2018.8646097
P. Busch, Frank Stïpmann, H. Ewald
The paper describes the evaluation of captured 3D-acceleration data from collars of dairy cows regarding the prediction of the state of health. It optimizes an existing algorithm on the subject of the distinction of lying and standing activities of dairy cows. It tests the accuracy of the classifier at different sampling frequencies, window sizes and window step-sizes. A parameter selection is discussed regarding the accuracy and minimizing use of resources, due to restricted processing power and energy resources on the targeted embedded system for the prediction algorithm.
{"title":"Signal processing and behaviour recognition in animal welfare monitoring system","authors":"P. Busch, Frank Stïpmann, H. Ewald","doi":"10.1109/ICSEE.2018.8646097","DOIUrl":"https://doi.org/10.1109/ICSEE.2018.8646097","url":null,"abstract":"The paper describes the evaluation of captured 3D-acceleration data from collars of dairy cows regarding the prediction of the state of health. It optimizes an existing algorithm on the subject of the distinction of lying and standing activities of dairy cows. It tests the accuracy of the classifier at different sampling frequencies, window sizes and window step-sizes. A parameter selection is discussed regarding the accuracy and minimizing use of resources, due to restricted processing power and energy resources on the targeted embedded system for the prediction algorithm.","PeriodicalId":254455,"journal":{"name":"2018 IEEE International Conference on the Science of Electrical Engineering in Israel (ICSEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129186531","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}
Pub Date : 2018-12-01DOI: 10.1109/ICSEE.2018.8646099
Yishai Cohen, I. Lapidot
Short segments speaker clustering has significant importance both for diarization and applications such as short push-to-tatk (PTT) segments clustering. In this paper we present a new way to cluster speech segments by applying a stochastic vector quantization (VQ) with a cosine metric together with a speaker clustering quality estimator based on logistic regression. The VQ is performed on codebooks of different sizes, and the choice of the best clustering result is estimated using logistic regression. The algorithm is tested on a large range of speakers, between 2 to 60. The results are compared to those of the mean-shift clustering method, which was already tested for this task several times. The results are a bit below those of the cosine similarity measure-based mean-shift clustering. The advantage is in the run-time which is approximately 10 times faster.
{"title":"Speakers clustering with stochastic VQ and clustering quality estimator","authors":"Yishai Cohen, I. Lapidot","doi":"10.1109/ICSEE.2018.8646099","DOIUrl":"https://doi.org/10.1109/ICSEE.2018.8646099","url":null,"abstract":"Short segments speaker clustering has significant importance both for diarization and applications such as short push-to-tatk (PTT) segments clustering. In this paper we present a new way to cluster speech segments by applying a stochastic vector quantization (VQ) with a cosine metric together with a speaker clustering quality estimator based on logistic regression. The VQ is performed on codebooks of different sizes, and the choice of the best clustering result is estimated using logistic regression. The algorithm is tested on a large range of speakers, between 2 to 60. The results are compared to those of the mean-shift clustering method, which was already tested for this task several times. The results are a bit below those of the cosine similarity measure-based mean-shift clustering. The advantage is in the run-time which is approximately 10 times faster.","PeriodicalId":254455,"journal":{"name":"2018 IEEE International Conference on the Science of Electrical Engineering in Israel (ICSEE)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123070408","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：