Pub Date : 2016-04-19DOI: 10.1109/RADIOELEK.2016.7477374
S. Doan, J. Veselý, P. Janu, P. Hubáček, Xuan Luong Tran
Phase ambiguity and phase error in interferometric method are important problems that have to be solved to determine angle of arrival (AOA) of signal. This paper proposes fast algorithm for ambiguity resolution of long baseline interferometric system, which was configured by three- and four-antenna array. In addition, the algorithm also provides information of allowable maximal error in phase measurement. The proposed algorithm also enables to configure a phase interferometric system. The algorithm was tested and verified by experimental results.
{"title":"Algorithm for obtaining high accurate phase interferometer","authors":"S. Doan, J. Veselý, P. Janu, P. Hubáček, Xuan Luong Tran","doi":"10.1109/RADIOELEK.2016.7477374","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2016.7477374","url":null,"abstract":"Phase ambiguity and phase error in interferometric method are important problems that have to be solved to determine angle of arrival (AOA) of signal. This paper proposes fast algorithm for ambiguity resolution of long baseline interferometric system, which was configured by three- and four-antenna array. In addition, the algorithm also provides information of allowable maximal error in phase measurement. The proposed algorithm also enables to configure a phase interferometric system. The algorithm was tested and verified by experimental results.","PeriodicalId":159747,"journal":{"name":"2016 26th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131494723","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 : 2016-04-19DOI: 10.1109/RADIOELEK.2016.7477369
Tayfun Unuk, R. Arslanalp
In this study, a new electronically tunable differential difference current conveyor with translinear circuit principle is proposed. A Capacitance multiplier circuit is used to show functionality of the proposed active block. The designed circuit is simulated by using PSpice program. According to the results of simulation, validation of proposed active block and applied circuit are verified.
{"title":"Design of BJT based electronically tunable differential difference current conveyor and its application","authors":"Tayfun Unuk, R. Arslanalp","doi":"10.1109/RADIOELEK.2016.7477369","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2016.7477369","url":null,"abstract":"In this study, a new electronically tunable differential difference current conveyor with translinear circuit principle is proposed. A Capacitance multiplier circuit is used to show functionality of the proposed active block. The designed circuit is simulated by using PSpice program. According to the results of simulation, validation of proposed active block and applied circuit are verified.","PeriodicalId":159747,"journal":{"name":"2016 26th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131748161","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 : 2016-04-19DOI: 10.1109/RADIOELEK.2016.7477363
J. C̆erven̆ová, M. Kamensky, E. Králiková
The paper describes a new system for remote measurement experiment. Set of cooperating applications is designed in LabVIEW environment. The system has a novel modular structure, when two modules called GO and DO module are matched for remote operation. The GO module distributes measured data over a network. The workplace is managed by a DO module. The designer of a new workplace develops only the DO module. Hence our modular system simplifies and unifies design of remote accessed workplaces with higher level of software security. A test application is presented for remote measuring of real current-voltage characteristics of bipolar components over internet.
{"title":"Modular remote access system for real experiments","authors":"J. C̆erven̆ová, M. Kamensky, E. Králiková","doi":"10.1109/RADIOELEK.2016.7477363","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2016.7477363","url":null,"abstract":"The paper describes a new system for remote measurement experiment. Set of cooperating applications is designed in LabVIEW environment. The system has a novel modular structure, when two modules called GO and DO module are matched for remote operation. The GO module distributes measured data over a network. The workplace is managed by a DO module. The designer of a new workplace develops only the DO module. Hence our modular system simplifies and unifies design of remote accessed workplaces with higher level of software security. A test application is presented for remote measuring of real current-voltage characteristics of bipolar components over internet.","PeriodicalId":159747,"journal":{"name":"2016 26th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"25 14","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133042321","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 : 2016-04-19DOI: 10.1109/RADIOELEK.2016.7477445
S. Rapuano
Analog-to-Information Converters (AICs) represent the implementation of the Compressed Sensing theory in practice. An AIC is a device that takes as input an analog signal and, unlike traditional ADCs, gives as output a digitized and compressed version of the input. In the literature, some AIC architectures have been proposed. Although the topic is relatively new several efforts have been made in the research community to propose AIC architectures and schemes. In order to identify the possible future application scenarios of such devices their characterization and standardization issues need to be analyzed too. This paper provides: (i) a short introduction to compressed sensing, (ii) basic information about Analog-to-Information Converters, (iii) an overview of the main applications of AICs and their current implementations, the research trends and some open issues focusing on their characterization and standardization.
{"title":"Analog-to-Information Converters: research trends and open problems","authors":"S. Rapuano","doi":"10.1109/RADIOELEK.2016.7477445","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2016.7477445","url":null,"abstract":"Analog-to-Information Converters (AICs) represent the implementation of the Compressed Sensing theory in practice. An AIC is a device that takes as input an analog signal and, unlike traditional ADCs, gives as output a digitized and compressed version of the input. In the literature, some AIC architectures have been proposed. Although the topic is relatively new several efforts have been made in the research community to propose AIC architectures and schemes. In order to identify the possible future application scenarios of such devices their characterization and standardization issues need to be analyzed too. This paper provides: (i) a short introduction to compressed sensing, (ii) basic information about Analog-to-Information Converters, (iii) an overview of the main applications of AICs and their current implementations, the research trends and some open issues focusing on their characterization and standardization.","PeriodicalId":159747,"journal":{"name":"2016 26th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114581309","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 : 2016-04-19DOI: 10.1109/RADIOELEK.2016.7477347
M. Cupal, Z. Raida
The substrate integrated waveguide (SIW) technology allows us to construct several types of low-profile antennas. One of these antennas is h-plane SIW horn antenna. However, this antenna shows constraints if thickness of the substrate is smaller than λ/10. A modified h-plane horn antenna to be used close to conducting and dielectric surfaces is presented in this paper. Attention is paid to the decrease of the elevation angle of the main beam in E-plane. The antenna has been developed for wireless links of on body communication or wireless power transfer along conductive materials like metallic roofs of cars, buses or airplanes.
{"title":"H-plane SIW horn antenna for on-body communication","authors":"M. Cupal, Z. Raida","doi":"10.1109/RADIOELEK.2016.7477347","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2016.7477347","url":null,"abstract":"The substrate integrated waveguide (SIW) technology allows us to construct several types of low-profile antennas. One of these antennas is h-plane SIW horn antenna. However, this antenna shows constraints if thickness of the substrate is smaller than λ/10. A modified h-plane horn antenna to be used close to conducting and dielectric surfaces is presented in this paper. Attention is paid to the decrease of the elevation angle of the main beam in E-plane. The antenna has been developed for wireless links of on body communication or wireless power transfer along conductive materials like metallic roofs of cars, buses or airplanes.","PeriodicalId":159747,"journal":{"name":"2016 26th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128919924","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 : 2016-04-19DOI: 10.1109/RADIOELEK.2016.7477361
M. Stork
Chaos theory deals with nonlinear things that are effectively impossible to predict or control, like turbulence, weather, the stock market, our brain states, and so on. These phenomena are often described by fractal mathematics, which captures the infinite complexity of nature. Rotated spin systems like stars, rotating solids, electromagnetic particles etc. are very interesting because they can in some circumstances exhibit chaotic precession. In this paper the chaotic system with “spin reversion” is described. The spin reversion means that direction of the rotation is reversed. The spin reversion is similar of phase modulation. The chaotic system can be “modulated” by different type of signal, e.g. sine wave, rectangle wave etc. The behavior of chaotic system with spin reversion was simulated and results of simulations are presented. This system can be used in different applications where chaotic behavior is important.
{"title":"Chaotic system with spin reversion","authors":"M. Stork","doi":"10.1109/RADIOELEK.2016.7477361","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2016.7477361","url":null,"abstract":"Chaos theory deals with nonlinear things that are effectively impossible to predict or control, like turbulence, weather, the stock market, our brain states, and so on. These phenomena are often described by fractal mathematics, which captures the infinite complexity of nature. Rotated spin systems like stars, rotating solids, electromagnetic particles etc. are very interesting because they can in some circumstances exhibit chaotic precession. In this paper the chaotic system with “spin reversion” is described. The spin reversion means that direction of the rotation is reversed. The spin reversion is similar of phase modulation. The chaotic system can be “modulated” by different type of signal, e.g. sine wave, rectangle wave etc. The behavior of chaotic system with spin reversion was simulated and results of simulations are presented. This system can be used in different applications where chaotic behavior is important.","PeriodicalId":159747,"journal":{"name":"2016 26th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130646746","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 : 2016-04-19DOI: 10.1109/RADIOELEK.2016.7477342
V. Schejbal, R. Dolecek, O. Fiser, V. Brazda, Z. Nemec
The physical optics (PO) calculations have been utilized for numerical simulations of electromagnetic field above irregular ground. The PO approximation and numerical simulations using parabolic equation method are used for new comparison with findings of longstanding testing of microwave field and tropospheric refractivity profiles. It is demonstrated that the PO could offer reliable numerical simulations for low altitude field and diffraction field zone even for numerous three-dimensional distributions of the atmospheric refraction.
{"title":"Propagation over terrain considering refractivity profiles","authors":"V. Schejbal, R. Dolecek, O. Fiser, V. Brazda, Z. Nemec","doi":"10.1109/RADIOELEK.2016.7477342","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2016.7477342","url":null,"abstract":"The physical optics (PO) calculations have been utilized for numerical simulations of electromagnetic field above irregular ground. The PO approximation and numerical simulations using parabolic equation method are used for new comparison with findings of longstanding testing of microwave field and tropospheric refractivity profiles. It is demonstrated that the PO could offer reliable numerical simulations for low altitude field and diffraction field zone even for numerous three-dimensional distributions of the atmospheric refraction.","PeriodicalId":159747,"journal":{"name":"2016 26th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130741001","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 : 2016-04-19DOI: 10.1109/RADIOELEK.2016.7477444
M. Jagelka, M. Donoval, P. Telek, F. Horínek, M. Weis, M. Daricek
Human health is important for people in any age. Healthcare addresses a market of more than 10% of the European gross domestic product. An ageing population will have an enormous impact on society and the economy. The objective of this article is to provide a view of some latest research innovations in field of bioelectronics. Among these a short description of non-invasive hydration sensor, glucose sensor, hemodynamic sensor preparation and implementation methods is provided followed by a proposal of a design of flexible plaster for ECG monitoring in function of a heart holter. A design of remote sensing units requires consideration of several functional blocs with following integration and evaluation phase. For the integration of such system several functional blocks are needed for the preparation of medical smart system cluster, such as energy source or harvester with supercaps or battery, communication (integrated antennas), new organic materials or biocompatible housing. Preparation of such system is deeper described by the example of an ECG plaster holter.
{"title":"Wearable healthcare electronics for 24-7 monitoring with focus on user comfort","authors":"M. Jagelka, M. Donoval, P. Telek, F. Horínek, M. Weis, M. Daricek","doi":"10.1109/RADIOELEK.2016.7477444","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2016.7477444","url":null,"abstract":"Human health is important for people in any age. Healthcare addresses a market of more than 10% of the European gross domestic product. An ageing population will have an enormous impact on society and the economy. The objective of this article is to provide a view of some latest research innovations in field of bioelectronics. Among these a short description of non-invasive hydration sensor, glucose sensor, hemodynamic sensor preparation and implementation methods is provided followed by a proposal of a design of flexible plaster for ECG monitoring in function of a heart holter. A design of remote sensing units requires consideration of several functional blocs with following integration and evaluation phase. For the integration of such system several functional blocks are needed for the preparation of medical smart system cluster, such as energy source or harvester with supercaps or battery, communication (integrated antennas), new organic materials or biocompatible housing. Preparation of such system is deeper described by the example of an ECG plaster holter.","PeriodicalId":159747,"journal":{"name":"2016 26th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"163 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129244053","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 : 2016-04-19DOI: 10.1109/RADIOELEK.2016.7477384
Ľ. Maceková, V. Palahin, Jana Handriková, S. Marchevsky
Nowadays, multiview video, as an advanced form of educational video, is in development phase. In this article, positive and problematic aspects of educational video are described from the point of view of a teacher. The technical properties and problems of multiview video streaming, such as Multiview Video Coding (MVC), streaming technology, and multiview video database systems are briefly mentioned. The realization phase of educational multiview video streaming is introduced, as well.
{"title":"Applying of video technologies in educational process","authors":"Ľ. Maceková, V. Palahin, Jana Handriková, S. Marchevsky","doi":"10.1109/RADIOELEK.2016.7477384","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2016.7477384","url":null,"abstract":"Nowadays, multiview video, as an advanced form of educational video, is in development phase. In this article, positive and problematic aspects of educational video are described from the point of view of a teacher. The technical properties and problems of multiview video streaming, such as Multiview Video Coding (MVC), streaming technology, and multiview video database systems are briefly mentioned. The realization phase of educational multiview video streaming is introduced, as well.","PeriodicalId":159747,"journal":{"name":"2016 26th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128828712","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 : 2016-04-19DOI: 10.1109/RADIOELEK.2016.7477443
Steffen Heuel, D. Mccarthy, Yariv Shavit
Air traffic control radar, military air traffic surveillance radars, meteorological radars and mobile wireless communication operate in the S-band frequency range. Test and measurement of spectrum sharing methods and their co-existence is absolutely essential, as performance degradation of mobile devices, networks ans S-Band radars has been proven. This paper addresses potential issues, discusses approaches to testing and measuring LTE and S-band radar co-existence.
{"title":"Test and measurement of coexistence between S-Band radar and mobile networks","authors":"Steffen Heuel, D. Mccarthy, Yariv Shavit","doi":"10.1109/RADIOELEK.2016.7477443","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2016.7477443","url":null,"abstract":"Air traffic control radar, military air traffic surveillance radars, meteorological radars and mobile wireless communication operate in the S-band frequency range. Test and measurement of spectrum sharing methods and their co-existence is absolutely essential, as performance degradation of mobile devices, networks ans S-Band radars has been proven. This paper addresses potential issues, discusses approaches to testing and measuring LTE and S-band radar co-existence.","PeriodicalId":159747,"journal":{"name":"2016 26th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120962859","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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