Pub Date : 2015-05-21DOI: 10.1109/SIBCON.2015.7147165
V. N. Ovcharuk
This paper describes the research methods of registration of acoustic emission signals for condition monitoring of industrial facilities. The description of the hardware-software complex engineered on the basis of the equipment company National Instruments. The paper substantiates the use of methods of spectral analysis. Described information-measuring system that provides noise immunity and implements methods of identification of acoustic emission signals.
{"title":"Concept of acoustic emission multifunctional information and measuring systems series «EMIS»","authors":"V. N. Ovcharuk","doi":"10.1109/SIBCON.2015.7147165","DOIUrl":"https://doi.org/10.1109/SIBCON.2015.7147165","url":null,"abstract":"This paper describes the research methods of registration of acoustic emission signals for condition monitoring of industrial facilities. The description of the hardware-software complex engineered on the basis of the equipment company National Instruments. The paper substantiates the use of methods of spectral analysis. Described information-measuring system that provides noise immunity and implements methods of identification of acoustic emission signals.","PeriodicalId":395729,"journal":{"name":"2015 International Siberian Conference on Control and Communications (SIBCON)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114266335","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 : 2015-05-21DOI: 10.1109/SIBCON.2015.7147055
E. Erofeev, V. Kagadei, A. Kazimirov, I. V. Fedin
AlGaN/GaN HEMT is one of attractive candidates for next generation high power devices because of high carrier mobility in 2DEG channels and high breakdown voltage due high critical electric field. In order to apply the AlGaN/GaN HEMTs for power switching applications the normally off operation is required. Enhancement type behavior of GaN HEMT transistors is obtained by using p-type Mg-doped GaN gate structures. The optimized epitaxial designs enable threshold voltage close to +2V. In present work, it is shown that atomic hydrogen treatment of the Mg doped p-GaN before gate metal evaporation can increase the threshold voltage up to +3.5V. It can be caused by the hydrogen-induced dipole layer formation at the p-GaN semiconductor interface after atomic hydrogen treatment. Further increase of treatment time lead to reduce the threshold voltage by form neutral complexes. Neutral complexes reduce the Mg doping level of p-GaN layer. There was no visible parameters degradation after thermal annealing at T = 300 °C for t = 30 min in vacuum environment. It can be caused by the formation thermally stable Mg-H complexes in the p-GaN layer after hydrogenation.
{"title":"High threshold voltage p-gate GaN transistors","authors":"E. Erofeev, V. Kagadei, A. Kazimirov, I. V. Fedin","doi":"10.1109/SIBCON.2015.7147055","DOIUrl":"https://doi.org/10.1109/SIBCON.2015.7147055","url":null,"abstract":"AlGaN/GaN HEMT is one of attractive candidates for next generation high power devices because of high carrier mobility in 2DEG channels and high breakdown voltage due high critical electric field. In order to apply the AlGaN/GaN HEMTs for power switching applications the normally off operation is required. Enhancement type behavior of GaN HEMT transistors is obtained by using p-type Mg-doped GaN gate structures. The optimized epitaxial designs enable threshold voltage close to +2V. In present work, it is shown that atomic hydrogen treatment of the Mg doped p-GaN before gate metal evaporation can increase the threshold voltage up to +3.5V. It can be caused by the hydrogen-induced dipole layer formation at the p-GaN semiconductor interface after atomic hydrogen treatment. Further increase of treatment time lead to reduce the threshold voltage by form neutral complexes. Neutral complexes reduce the Mg doping level of p-GaN layer. There was no visible parameters degradation after thermal annealing at T = 300 °C for t = 30 min in vacuum environment. It can be caused by the formation thermally stable Mg-H complexes in the p-GaN layer after hydrogenation.","PeriodicalId":395729,"journal":{"name":"2015 International Siberian Conference on Control and Communications (SIBCON)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114446486","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 : 2015-05-21DOI: 10.1109/SIBCON.2015.7147133
I. Lvovich, A. Preobrazhenskiy, O. Choporov, K. V. Kaydakova
The purpose of the research is the application of parallel computations when solving the problems of estimating the characteristics on the subject is complex within the framework of the method of edge waves. The mathematical model of calculation is considered in detail. With using the developed application the effectiveness of parallel computing was assessed for some objects.
{"title":"The analysis of scattering electromagnetic waves with use of paraller computing","authors":"I. Lvovich, A. Preobrazhenskiy, O. Choporov, K. V. Kaydakova","doi":"10.1109/SIBCON.2015.7147133","DOIUrl":"https://doi.org/10.1109/SIBCON.2015.7147133","url":null,"abstract":"The purpose of the research is the application of parallel computations when solving the problems of estimating the characteristics on the subject is complex within the framework of the method of edge waves. The mathematical model of calculation is considered in detail. With using the developed application the effectiveness of parallel computing was assessed for some objects.","PeriodicalId":395729,"journal":{"name":"2015 International Siberian Conference on Control and Communications (SIBCON)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116855840","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 : 2015-05-21DOI: 10.1109/SIBCON.2015.7147093
D. Kachan, E. Siemens, V. Shuvalov
The knowledge about available bandwidth (avband) on a data path between two hosts can be widely used for almost any telecommunication issues. It is important for streaming applications, for verification of quality of service in a network, for selection of the best server for providing improved service and, for sure, it could give a significant positive impact on development of congestion control algorithms for reliable data transfer protocols. There are many algorithms and implemented tools, which provide capabilities for measuring avband. This paper focuses on the improvement of calibrated pahtload algorithm for avband measurements. During this research a new tool for avband measurement called Kite has been developed. The main improvements pertain to evaluation of the optimal amount of probe samples for available bandwidth estimation on high-speed paths up to 10 Gbps as well as to the calculation of probe rate for following iterations of measurements - selection of the next rate depends on variation of jitter from previous iteration.
{"title":"Available bandwidth measurement for 10 Gbps networks","authors":"D. Kachan, E. Siemens, V. Shuvalov","doi":"10.1109/SIBCON.2015.7147093","DOIUrl":"https://doi.org/10.1109/SIBCON.2015.7147093","url":null,"abstract":"The knowledge about available bandwidth (avband) on a data path between two hosts can be widely used for almost any telecommunication issues. It is important for streaming applications, for verification of quality of service in a network, for selection of the best server for providing improved service and, for sure, it could give a significant positive impact on development of congestion control algorithms for reliable data transfer protocols. There are many algorithms and implemented tools, which provide capabilities for measuring avband. This paper focuses on the improvement of calibrated pahtload algorithm for avband measurements. During this research a new tool for avband measurement called Kite has been developed. The main improvements pertain to evaluation of the optimal amount of probe samples for available bandwidth estimation on high-speed paths up to 10 Gbps as well as to the calculation of probe rate for following iterations of measurements - selection of the next rate depends on variation of jitter from previous iteration.","PeriodicalId":395729,"journal":{"name":"2015 International Siberian Conference on Control and Communications (SIBCON)","volume":"29 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129610028","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 : 2015-05-21DOI: 10.1109/SIBCON.2015.7147292
E. Shcherba
The paper describes an approach to modeling telecommunication systems and processes of data transmission based on Boolean-valued networks. Models to address two specific problems of network security are offered. It is possible to adapt existing algorithms of graph theory to apply them in this approach. Thus, it becomes possible to take into account not only quantitative but also qualitative measure of information in solving urgent network problems. A definition of a maximum flow in Boolean-valued networks and an algorithm to find this flow were proposed. Two examples to demonstrate the described models and algorithms are also presented in the paper.
{"title":"Boolean-valued models of telecommunication systems in some problems of network security","authors":"E. Shcherba","doi":"10.1109/SIBCON.2015.7147292","DOIUrl":"https://doi.org/10.1109/SIBCON.2015.7147292","url":null,"abstract":"The paper describes an approach to modeling telecommunication systems and processes of data transmission based on Boolean-valued networks. Models to address two specific problems of network security are offered. It is possible to adapt existing algorithms of graph theory to apply them in this approach. Thus, it becomes possible to take into account not only quantitative but also qualitative measure of information in solving urgent network problems. A definition of a maximum flow in Boolean-valued networks and an algorithm to find this flow were proposed. Two examples to demonstrate the described models and algorithms are also presented in the paper.","PeriodicalId":395729,"journal":{"name":"2015 International Siberian Conference on Control and Communications (SIBCON)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129623316","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 : 2015-05-21DOI: 10.1109/SIBCON.2015.7147106
L. Aleksandr, K. Anatoly, F. Ruslan
This article discusses the method of determining the lower limit of the noise level of precision crystal oscillators based on the calculation of the crystal's maximum excitation power. Power limit is determined by the limiting values of the mechanical stresses arising from the excitation of the thickness-shear waves, and takes into account the design parameters of the resonator, such as natural frequency, the number of mechanical harmonic, curvature radius of the lens surface of the piezoelectric element, and the radius of the electrodes. In this paper we derive formulas for practical calculation of the lower noise level resonators of AT - cut.
{"title":"Evaluation of the lower limit of crystal oscillator noise through the resonator's design parameters","authors":"L. Aleksandr, K. Anatoly, F. Ruslan","doi":"10.1109/SIBCON.2015.7147106","DOIUrl":"https://doi.org/10.1109/SIBCON.2015.7147106","url":null,"abstract":"This article discusses the method of determining the lower limit of the noise level of precision crystal oscillators based on the calculation of the crystal's maximum excitation power. Power limit is determined by the limiting values of the mechanical stresses arising from the excitation of the thickness-shear waves, and takes into account the design parameters of the resonator, such as natural frequency, the number of mechanical harmonic, curvature radius of the lens surface of the piezoelectric element, and the radius of the electrodes. In this paper we derive formulas for practical calculation of the lower noise level resonators of AT - cut.","PeriodicalId":395729,"journal":{"name":"2015 International Siberian Conference on Control and Communications (SIBCON)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128416201","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 : 2015-05-21DOI: 10.1109/SIBCON.2015.7146962
O. Stukach, V. S. Panko
On behalf of members of the Scientific and Technical Program Committees, Omsk State Technical University it is an honor and pleasure to invite you to participate in the 2015 International Siberian Conference on Control and Communications. We believe the SIBCON is so special for Siberia among these premier-class international conferences, because it is biannually providing opportunities for exchanging information and ideas in control and communications.
{"title":"Welcome message from the technical chairs","authors":"O. Stukach, V. S. Panko","doi":"10.1109/SIBCON.2015.7146962","DOIUrl":"https://doi.org/10.1109/SIBCON.2015.7146962","url":null,"abstract":"On behalf of members of the Scientific and Technical Program Committees, Omsk State Technical University it is an honor and pleasure to invite you to participate in the 2015 International Siberian Conference on Control and Communications. We believe the SIBCON is so special for Siberia among these premier-class international conferences, because it is biannually providing opportunities for exchanging information and ideas in control and communications.","PeriodicalId":395729,"journal":{"name":"2015 International Siberian Conference on Control and Communications (SIBCON)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129154268","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 : 2015-05-21DOI: 10.1109/SIBCON.2015.7147329
D. Shaykhutdinov, N. Gorbatenko, S. Akhmedov, R. Leukhin
The article discusses the creation of new device based on the platform SbRIO-9636, used for measuring the magnetic characteristics of electrical steel with alternating current up to magnetic saturation of the test area of the sample. The device using original transducer of magnetic flux in the electrical steel during its tests. This transducer is integrated with a magnetizing part and is overlaid that provides high-speed measurements of steel - up to 15 seconds. Developed software with LabVIEW allows you to set the magnetization reversal mode, remove the dependence of the magnetic induction of the magnetic field in the form of dynamic magnetization curve and define them the most informative parameters of the sample: the maximum differential permeability and maximum flux density. A distinctive feature of the device is the possibility of carrying out measurements on an arbitrary shape and size.
{"title":"Device for control of magnetic properties of electrical steel for industrial production management system","authors":"D. Shaykhutdinov, N. Gorbatenko, S. Akhmedov, R. Leukhin","doi":"10.1109/SIBCON.2015.7147329","DOIUrl":"https://doi.org/10.1109/SIBCON.2015.7147329","url":null,"abstract":"The article discusses the creation of new device based on the platform SbRIO-9636, used for measuring the magnetic characteristics of electrical steel with alternating current up to magnetic saturation of the test area of the sample. The device using original transducer of magnetic flux in the electrical steel during its tests. This transducer is integrated with a magnetizing part and is overlaid that provides high-speed measurements of steel - up to 15 seconds. Developed software with LabVIEW allows you to set the magnetization reversal mode, remove the dependence of the magnetic induction of the magnetic field in the form of dynamic magnetization curve and define them the most informative parameters of the sample: the maximum differential permeability and maximum flux density. A distinctive feature of the device is the possibility of carrying out measurements on an arbitrary shape and size.","PeriodicalId":395729,"journal":{"name":"2015 International Siberian Conference on Control and Communications (SIBCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130416841","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 : 2015-05-21DOI: 10.1109/SIBCON.2015.7147156
I. Radionov, A. Mushenko
The problem of locomotive traction formation remains as one of the most important problems of railway transport. This is due to a random component in the friction coefficient describing wage wheels adhesion with the rail surface. The coefficient of adhesion varies depending on several factors: weather conditions, railway surface quality, speed, etc. Formation of the traction are often performed by automatic systems with use of a linear dependences. Fall of adhesion is determined by the derivative of angular velocity of wage wheels rotation or by comparing rotation speeds of several wage wheels. The follow-up traction decrease is usually implemented as a corrective measure. This approach has some obvious disadvantages. In the paper we propose a system of adhesion moment estimation in contact point if “wheel-railway”. For problem solution we use methods and principles of synergetic control theory. As a means for observer design we use methods and principles of the synergetic control theory. In the theory of synergetic control the set of criteria for the control system is usually expressed in the form of an appropriate system of invariants. Invariants act as control objectives, they deliver intended technological problem, but a synergistic design procedure is reduced to finding control laws under which these invariants are satisfied. The availability of information about current adhesion conditions will allow to construct a high-precision adaptive control systems for locomotive electrical drives.
{"title":"The method of estimation of adhesion at “wheel-railway” contact point","authors":"I. Radionov, A. Mushenko","doi":"10.1109/SIBCON.2015.7147156","DOIUrl":"https://doi.org/10.1109/SIBCON.2015.7147156","url":null,"abstract":"The problem of locomotive traction formation remains as one of the most important problems of railway transport. This is due to a random component in the friction coefficient describing wage wheels adhesion with the rail surface. The coefficient of adhesion varies depending on several factors: weather conditions, railway surface quality, speed, etc. Formation of the traction are often performed by automatic systems with use of a linear dependences. Fall of adhesion is determined by the derivative of angular velocity of wage wheels rotation or by comparing rotation speeds of several wage wheels. The follow-up traction decrease is usually implemented as a corrective measure. This approach has some obvious disadvantages. In the paper we propose a system of adhesion moment estimation in contact point if “wheel-railway”. For problem solution we use methods and principles of synergetic control theory. As a means for observer design we use methods and principles of the synergetic control theory. In the theory of synergetic control the set of criteria for the control system is usually expressed in the form of an appropriate system of invariants. Invariants act as control objectives, they deliver intended technological problem, but a synergistic design procedure is reduced to finding control laws under which these invariants are satisfied. The availability of information about current adhesion conditions will allow to construct a high-precision adaptive control systems for locomotive electrical drives.","PeriodicalId":395729,"journal":{"name":"2015 International Siberian Conference on Control and Communications (SIBCON)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130508208","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 : 2015-05-21DOI: 10.1109/SIBCON.2015.7147082
A. Kalachikov, N. S. Shelkunov
This paper addresses wireless MIMO channel sounding method and channel capacity estimation based on this measurement in urban environment. Channel capacity gain in dependence of signal to noise ratio for various antenna configuration is presented. Measured channel capacity CDF curves are presented.
{"title":"Measurement of wireless MIMO channel parameters at 2.3 GHz","authors":"A. Kalachikov, N. S. Shelkunov","doi":"10.1109/SIBCON.2015.7147082","DOIUrl":"https://doi.org/10.1109/SIBCON.2015.7147082","url":null,"abstract":"This paper addresses wireless MIMO channel sounding method and channel capacity estimation based on this measurement in urban environment. Channel capacity gain in dependence of signal to noise ratio for various antenna configuration is presented. Measured channel capacity CDF curves are presented.","PeriodicalId":395729,"journal":{"name":"2015 International Siberian Conference on Control and Communications (SIBCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130559108","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}
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