Pub Date : 2020-10-14DOI: 10.1109/NTSP49686.2020.9229542
P. Lipovský, M. Fil'ko, J. Novotňák, Zoltán Szöke, M. Kosuda, K. Draganová
This article deals with a concept of the microwire magnetometer for mapping of magnetic fields using Unmanned Aerial Vehicles (UAVs) that have been developed at the Faculty of Aeronautics at the Technical University of Košice. A UAV equipped with this type of sensor will be used to map mineral deposits, archaeological sites, locate pipelines and survey in specific areas of interest where conventional systems cannot be used or are impractical. The system in development uses a magnetic microwire sensor based on the Residence Times Difference (RTD) principle of magnetic field measurement. With this type of a fluxgate magnetometer several nT sensitivity was achieved - by the prototype, however the sensitivity below nT is expected to be achieved based on the results of the initial tests.
{"title":"Concept of Magnetic Microwires Based Magnetometer for UAV Geophysical Survey","authors":"P. Lipovský, M. Fil'ko, J. Novotňák, Zoltán Szöke, M. Kosuda, K. Draganová","doi":"10.1109/NTSP49686.2020.9229542","DOIUrl":"https://doi.org/10.1109/NTSP49686.2020.9229542","url":null,"abstract":"This article deals with a concept of the microwire magnetometer for mapping of magnetic fields using Unmanned Aerial Vehicles (UAVs) that have been developed at the Faculty of Aeronautics at the Technical University of Košice. A UAV equipped with this type of sensor will be used to map mineral deposits, archaeological sites, locate pipelines and survey in specific areas of interest where conventional systems cannot be used or are impractical. The system in development uses a magnetic microwire sensor based on the Residence Times Difference (RTD) principle of magnetic field measurement. With this type of a fluxgate magnetometer several nT sensitivity was achieved - by the prototype, however the sensitivity below nT is expected to be achieved based on the results of the initial tests.","PeriodicalId":197079,"journal":{"name":"2020 New Trends in Signal Processing (NTSP)","volume":"287 1-2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123726790","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 : 2020-10-14DOI: 10.1109/NTSP49686.2020.9229551
Peter Rohal, J. Ochodnicky
Adaptive data processing in modern radar systems is standard approach. The classic kalman filter, extended kalman filter and many other applications are usually used for state estimate and radar target tracking. Signal and data processing technology improvement allows the more effective target tracking in real time. In this paper, we approach the structure and key features of the optimal particle filtering (PF). The optimization criteria for PF are proposed and analyzed. The dependence of mean square error on the number of particles during track prediction by particle filter is discussed. Using this dependence, we were able to determine the minimum required number of particles to correctly predict the trajectory of the target depending on its dynamics (trajectory complexity). The results of off-line real radar data processing are analyzed.
{"title":"Particle Filter Optimization for Adaptive Radar Data Processing","authors":"Peter Rohal, J. Ochodnicky","doi":"10.1109/NTSP49686.2020.9229551","DOIUrl":"https://doi.org/10.1109/NTSP49686.2020.9229551","url":null,"abstract":"Adaptive data processing in modern radar systems is standard approach. The classic kalman filter, extended kalman filter and many other applications are usually used for state estimate and radar target tracking. Signal and data processing technology improvement allows the more effective target tracking in real time. In this paper, we approach the structure and key features of the optimal particle filtering (PF). The optimization criteria for PF are proposed and analyzed. The dependence of mean square error on the number of particles during track prediction by particle filter is discussed. Using this dependence, we were able to determine the minimum required number of particles to correctly predict the trajectory of the target depending on its dynamics (trajectory complexity). The results of off-line real radar data processing are analyzed.","PeriodicalId":197079,"journal":{"name":"2020 New Trends in Signal Processing (NTSP)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132839112","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 : 2020-10-14DOI: 10.1109/NTSP49686.2020.9229541
Tomáš Brincil, Manh Hung Nguyen, M. Richterová, J. Jiránek, M. Popela
Satellite digital broadcast systems are used for high rate data communication in the Ku-band, but the attenuation induced by the atmospheric conditions is a significant propagation impairment at this band. This paper discusses results of an expert test in anechoic chamber simulated satellite broadcasting stream under rainy conditions in the controlled-laboratory environment and results of an expert test under real atmospheric conditions for the real satellite channel.
{"title":"Analysis of Influence of Atmospheric Conditions on Classification DVB-S2 Signals","authors":"Tomáš Brincil, Manh Hung Nguyen, M. Richterová, J. Jiránek, M. Popela","doi":"10.1109/NTSP49686.2020.9229541","DOIUrl":"https://doi.org/10.1109/NTSP49686.2020.9229541","url":null,"abstract":"Satellite digital broadcast systems are used for high rate data communication in the Ku-band, but the attenuation induced by the atmospheric conditions is a significant propagation impairment at this band. This paper discusses results of an expert test in anechoic chamber simulated satellite broadcasting stream under rainy conditions in the controlled-laboratory environment and results of an expert test under real atmospheric conditions for the real satellite channel.","PeriodicalId":197079,"journal":{"name":"2020 New Trends in Signal Processing (NTSP)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130385354","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 : 2020-10-14DOI: 10.1109/NTSP49686.2020.9229531
L. Scholtz, M. Holá
The paper deals with the numerical simulations of fiber Bragg gratings as promising tools for sensing applications mainly in weigh-in-motion. For higher transparency in infrared region of chalcogenide materials, in the paper are compared transfer characteristics of fiber Bragg gratings based on chalcogenide material As2s3 and conventional material SiO2. The paper is focused especially on pressure effects, but marginally also temperature and strain effects are mentioned. Is shown the effect of Bragg wavelength shift caused by the pressure. Bragg wavelength shift leads to change of transmission properties of FBGs. Since, the changes in the reflectance spectrum of the grating results to the changes in temporal properties of the grating, in the paper are presented the temporal properties depending on the pressure. Finally, in the paper is presented the possible using of FBGs for the weigh-in-motion applications.
{"title":"Simulations of As2S3 Fiber Bragg Grating for Weigh in Motion Applications","authors":"L. Scholtz, M. Holá","doi":"10.1109/NTSP49686.2020.9229531","DOIUrl":"https://doi.org/10.1109/NTSP49686.2020.9229531","url":null,"abstract":"The paper deals with the numerical simulations of fiber Bragg gratings as promising tools for sensing applications mainly in weigh-in-motion. For higher transparency in infrared region of chalcogenide materials, in the paper are compared transfer characteristics of fiber Bragg gratings based on chalcogenide material As2s3 and conventional material SiO2. The paper is focused especially on pressure effects, but marginally also temperature and strain effects are mentioned. Is shown the effect of Bragg wavelength shift caused by the pressure. Bragg wavelength shift leads to change of transmission properties of FBGs. Since, the changes in the reflectance spectrum of the grating results to the changes in temporal properties of the grating, in the paper are presented the temporal properties depending on the pressure. Finally, in the paper is presented the possible using of FBGs for the weigh-in-motion applications.","PeriodicalId":197079,"journal":{"name":"2020 New Trends in Signal Processing (NTSP)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124100731","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 : 2020-10-14DOI: 10.1109/NTSP49686.2020.9229549
Jarosław Stępiń
The article presents the results of construction and research of the backup radio navigation system. The issues of radio communication subsystem integration were presented. Selected methods of receiver position estimation, were described, taking into account the specificity of the MF and UHF ranges. Further in the article the functionality of radio communication and navigation were demonstrated. The measurements results of signals generated by ground-based station transmitters with implemented mechanisms and methods of signal processing were presented. The results were compared with known propagation models for horizon and beyond horizon sea links.
{"title":"Localization Methods in MF and UHF Reserve Radionavigation System","authors":"Jarosław Stępiń","doi":"10.1109/NTSP49686.2020.9229549","DOIUrl":"https://doi.org/10.1109/NTSP49686.2020.9229549","url":null,"abstract":"The article presents the results of construction and research of the backup radio navigation system. The issues of radio communication subsystem integration were presented. Selected methods of receiver position estimation, were described, taking into account the specificity of the MF and UHF ranges. Further in the article the functionality of radio communication and navigation were demonstrated. The measurements results of signals generated by ground-based station transmitters with implemented mechanisms and methods of signal processing were presented. The results were compared with known propagation models for horizon and beyond horizon sea links.","PeriodicalId":197079,"journal":{"name":"2020 New Trends in Signal Processing (NTSP)","volume":"188 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117304562","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 : 2020-10-14DOI: 10.1109/NTSP49686.2020.9229545
J. Tomlain, O. Teren, R. Sedlácek, J. Vedral
This paper discusses the problems of the noninvasive diagnostic of high-voltage machines. The main role of the diagnostic is to predict an upcoming machine failure. Frequency response and frequency domain spectroscopy methods are studied in this paper. The methods are compared in terms of common instrumentation features. A development of a hardware platform intended for both methods is presented. The platform is evaluated in the terms of accuracy and compared with laboratory instrumentation. The results of the evaluation showed the proposed solution is able to implement both methods and have a measurement accuracy comparable with market available instruments implementing only one method.
{"title":"Experimental Verification of the Fully-Digital High Voltage FPGA-Based Diagnostic Equipment","authors":"J. Tomlain, O. Teren, R. Sedlácek, J. Vedral","doi":"10.1109/NTSP49686.2020.9229545","DOIUrl":"https://doi.org/10.1109/NTSP49686.2020.9229545","url":null,"abstract":"This paper discusses the problems of the noninvasive diagnostic of high-voltage machines. The main role of the diagnostic is to predict an upcoming machine failure. Frequency response and frequency domain spectroscopy methods are studied in this paper. The methods are compared in terms of common instrumentation features. A development of a hardware platform intended for both methods is presented. The platform is evaluated in the terms of accuracy and compared with laboratory instrumentation. The results of the evaluation showed the proposed solution is able to implement both methods and have a measurement accuracy comparable with market available instruments implementing only one method.","PeriodicalId":197079,"journal":{"name":"2020 New Trends in Signal Processing (NTSP)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124331302","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 : 2020-10-14DOI: 10.1109/NTSP49686.2020.9229553
Miroslav Matejček, M. Šostronek
This article deals with inertial sensors, accelerometers and their influence on missile guidance systems of guided missiles. Accelerometers are used in accelerometer feedback of guided missile autopilot, their parameters and stability parameters are important for stability of missile flight features. The article main contribution is the evaluation basic accelerometer parameters, influence of scale factor, offset and their temperature dependency on the missile trajectory and missile normal acceleration. The influence of accelerometer white noise on missile trajectory is evaluated too. Accelerometer white noise is estimated according to Allan variance.
{"title":"The Influence of Inertial Sensors Parameters on Guidance Systems","authors":"Miroslav Matejček, M. Šostronek","doi":"10.1109/NTSP49686.2020.9229553","DOIUrl":"https://doi.org/10.1109/NTSP49686.2020.9229553","url":null,"abstract":"This article deals with inertial sensors, accelerometers and their influence on missile guidance systems of guided missiles. Accelerometers are used in accelerometer feedback of guided missile autopilot, their parameters and stability parameters are important for stability of missile flight features. The article main contribution is the evaluation basic accelerometer parameters, influence of scale factor, offset and their temperature dependency on the missile trajectory and missile normal acceleration. The influence of accelerometer white noise on missile trajectory is evaluated too. Accelerometer white noise is estimated according to Allan variance.","PeriodicalId":197079,"journal":{"name":"2020 New Trends in Signal Processing (NTSP)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121384638","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 : 2020-10-14DOI: 10.1109/NTSP49686.2020.9229539
R. Durikovic, Eva Kunovská
The aim of the research presented here is to create an application that simulates the process of the mezzotint technique. It is a gravure printing technique that is time consuming, whole process is hand-made, and sharp metal tools are used. Such a process involves the creation of a plate that has a design on surface. Subsequently, the surface must be dyed and discolored to create shading. The last step is to squeeze the color on the paper. In our simulation process, we have achieved the following new results: we modeled the plate creation process using virtual tools, cleaning with a rag, printing, the diffusion, and drying process of the ink during the printing process.
{"title":"Processing the RGB Images to Generate Mezzotint Plate and Simulate the Press","authors":"R. Durikovic, Eva Kunovská","doi":"10.1109/NTSP49686.2020.9229539","DOIUrl":"https://doi.org/10.1109/NTSP49686.2020.9229539","url":null,"abstract":"The aim of the research presented here is to create an application that simulates the process of the mezzotint technique. It is a gravure printing technique that is time consuming, whole process is hand-made, and sharp metal tools are used. Such a process involves the creation of a plate that has a design on surface. Subsequently, the surface must be dyed and discolored to create shading. The last step is to squeeze the color on the paper. In our simulation process, we have achieved the following new results: we modeled the plate creation process using virtual tools, cleaning with a rag, printing, the diffusion, and drying process of the ink during the printing process.","PeriodicalId":197079,"journal":{"name":"2020 New Trends in Signal Processing (NTSP)","volume":"137 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128700712","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 : 2020-10-14DOI: 10.1109/NTSP49686.2020.9229552
Maroš Jakubec, Eva Lieskovská, R. Jarina
The i-vectors with Probabilistic Linear Discriminative Analysis (PLDA) are known to be one of the latest and most advanced techniques in the field of Automatic Speaker Recognition (ASR). The paper focuses on the development of i-vector/PLDA based the ASR systems in two programming environments, namely Python and MATLAB, which are popular among machine-learning community. Comparative evaluation of system performance, in terms of accuracy and computational requirements, for both platforms is presented.
{"title":"Development of Speaker Recognizer Using I-vectors in Two Programming Environments","authors":"Maroš Jakubec, Eva Lieskovská, R. Jarina","doi":"10.1109/NTSP49686.2020.9229552","DOIUrl":"https://doi.org/10.1109/NTSP49686.2020.9229552","url":null,"abstract":"The i-vectors with Probabilistic Linear Discriminative Analysis (PLDA) are known to be one of the latest and most advanced techniques in the field of Automatic Speaker Recognition (ASR). The paper focuses on the development of i-vector/PLDA based the ASR systems in two programming environments, namely Python and MATLAB, which are popular among machine-learning community. Comparative evaluation of system performance, in terms of accuracy and computational requirements, for both platforms is presented.","PeriodicalId":197079,"journal":{"name":"2020 New Trends in Signal Processing (NTSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114889873","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 : 2020-10-14DOI: 10.1109/NTSP49686.2020.9229533
Miroslav Matejček, M. Šostronek
This article deals with decision making process in complex technical systems. Complex technical systems especially systems with set of technical, operational and tactical criteria describe complex systems features. The example of the complex system is ground based air defence system. Decision making process is there used for the purpose, of replacement older ground based air defence systems by new ones. The main article contribution is creating of useful algorithm for decision makers in decision-making process for replacement ground based air defence systems. According to algorithm it is necessary to create guide user interface for simplification of decision-making results computation.
{"title":"Analytical Hierarchic Method in Decision Making Process","authors":"Miroslav Matejček, M. Šostronek","doi":"10.1109/NTSP49686.2020.9229533","DOIUrl":"https://doi.org/10.1109/NTSP49686.2020.9229533","url":null,"abstract":"This article deals with decision making process in complex technical systems. Complex technical systems especially systems with set of technical, operational and tactical criteria describe complex systems features. The example of the complex system is ground based air defence system. Decision making process is there used for the purpose, of replacement older ground based air defence systems by new ones. The main article contribution is creating of useful algorithm for decision makers in decision-making process for replacement ground based air defence systems. According to algorithm it is necessary to create guide user interface for simplification of decision-making results computation.","PeriodicalId":197079,"journal":{"name":"2020 New Trends in Signal Processing (NTSP)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121880346","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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