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2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)最新文献

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RADIOELEKTRONIKA 2019 Index of Authors RADIOELEKTRONIKA 2019作者索引
2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-01 DOI: 10.1109/radioelek.2019.8733464
{"title":"RADIOELEKTRONIKA 2019 Index of Authors","authors":"","doi":"10.1109/radioelek.2019.8733464","DOIUrl":"https://doi.org/10.1109/radioelek.2019.8733464","url":null,"abstract":"","PeriodicalId":336454,"journal":{"name":"2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128021823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Total Electron Content Measurements by Single-Frequency GPS Receiver 用单频GPS接收机测量总电子含量
2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-01 DOI: 10.1109/RADIOELEK.2019.8733460
L. Rejfek, J. Urbář, K. Pitaš, P. Chmelar
{"title":"Total Electron Content Measurements by Single-Frequency GPS Receiver","authors":"L. Rejfek, J. Urbář, K. Pitaš, P. Chmelar","doi":"10.1109/RADIOELEK.2019.8733460","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2019.8733460","url":null,"abstract":"In this paper is described the measurement of the Total Electron Content by the single-frequency GPS receiver. Disadvantage of this method is that it cannot be used for real-time processing. The advantages of the proposed method are that the device is cheaper than dual-frequency GPS receiver and it can reinterpret older valuable measurements by such single-frequency receivers. The algorithm was tested with the dual-frequency receiver. Signal from selected frequency (f1, or f2) was processed by presented algorithm and results were compared with standard processing of the signals, which is used for the dual-frequency receivers. Results are promising.","PeriodicalId":336454,"journal":{"name":"2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122408346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nonlinear Distortion in a Microwave High Power Amplifier 微波大功率放大器的非线性失真
2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-01 DOI: 10.1109/RADIOELEK.2019.8733505
Bezoušek Pavel, D. Matousek, L. Rejfek
{"title":"Nonlinear Distortion in a Microwave High Power Amplifier","authors":"Bezoušek Pavel, D. Matousek, L. Rejfek","doi":"10.1109/RADIOELEK.2019.8733505","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2019.8733505","url":null,"abstract":"In this paper the high-power amplifier CGHV31500F designed for the radar S-Band application is studied. The amplifier module is based on GaN HEMT encapsulated internally matched transistor, delivering more than 500 W in a pulse regime. Nonlinear model of this amplifier was developed and nonlinear distortion of a standard radar signal and of possible future QAM signals are predicted.","PeriodicalId":336454,"journal":{"name":"2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132637738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Experiments with Coupled Phase Locked Loops 耦合锁相环实验
2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-01 DOI: 10.1109/RADIOELEK.2019.8733586
M. Stork
{"title":"Experiments with Coupled Phase Locked Loops","authors":"M. Stork","doi":"10.1109/RADIOELEK.2019.8733586","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2019.8733586","url":null,"abstract":"In this paper the experiments with two or more mutually coupled phase locked loops (PLL) are described. The different types of coupled PLLs are simulated and results are confirmed by measuring in real systems. The experiments include analog and digital PLLs and simulation. In this paper only 2 coupled PLLs are simulated and measured.","PeriodicalId":336454,"journal":{"name":"2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130600972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of FMCW Radar for Vibration Sensing in Industrial Environments 工业环境下FMCW雷达振动传感性能评估
2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-01 DOI: 10.1109/RADIOELEK.2019.8733410
Christian Zeintl, F. Eibensteiner, J. Langer
{"title":"Evaluation of FMCW Radar for Vibration Sensing in Industrial Environments","authors":"Christian Zeintl, F. Eibensteiner, J. Langer","doi":"10.1109/RADIOELEK.2019.8733410","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2019.8733410","url":null,"abstract":"In industrial environments the operating time of equipment is a critical factor. Through predicitve maintenance the necessary inspection tasks that require machine downtimes are minimized. For industrial fans that evacuate very hot mediums or air with a high content of abrasive dust or particulates there is currently no possibility to reliably sense the wear and tear of the fan blades during operation. This work investigates the use of a radar sensor for estimating the wear of such fans by sensing vibrations and rotational imbalances. For this task a frequency modulated continuous wave (FMCW) radar sensor is evaluated and suitable signal processing algorithms are developed to extract the desired information. Furthermore, the optimal sensing position, modulation waveform and fan optimizations are considered. This paper focuses on the basic signal processing techniques necessary as well as the measurement setup, simulations and first measurement evaluations.","PeriodicalId":336454,"journal":{"name":"2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132301035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Wideband Receiver for UWB Radars 用于超宽带雷达的宽带接收机
2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-01 DOI: 10.1109/RADIOELEK.2019.8733573
S. Slovák, P. Galajda, M. Sokol, M. Pecovský
{"title":"Wideband Receiver for UWB Radars","authors":"S. Slovák, P. Galajda, M. Sokol, M. Pecovský","doi":"10.1109/RADIOELEK.2019.8733573","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2019.8733573","url":null,"abstract":"This paper deals with the receiver for sampling and preprocessing the wideband signals. These signals are wide in the meaning of its spectrum, e.g. very short impulses, in our case the M-sequence modulated continuous wave signals (MMCW). Conversion of the wideband signals like M-sequence is not a trivial task. Devices that are driven with this type of MMCW signals usually operates in the frequency band nearly from DC up to 20 GHz. It is an ultra-wide frequency band (UWB) specified by the Electronic Communication Committee (ECC) or the Federal Communications Commission (FCC). For the processing of these signals, sampling in equivalent time is used. This principle, as well as the individual components of the receiver, are explained in this article. The results from measurements and simulations of the dynamic, AC, DC and nonlinear characteristics are presented as well.","PeriodicalId":336454,"journal":{"name":"2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126466612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Comparison of the Methods of Graphical Solution of Symbolic Sensitivity 符号敏感性图形解方法的比较
2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-01 DOI: 10.1109/RADIOELEK.2019.8733555
Bohumil Brtnik
{"title":"Comparison of the Methods of Graphical Solution of Symbolic Sensitivity","authors":"Bohumil Brtnik","doi":"10.1109/RADIOELEK.2019.8733555","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2019.8733555","url":null,"abstract":"Signal-flow graph (SFG) technique is very useful tool for the hand analysis of small and medium-size networks and/or subnetworks of large systems. Last days the SFG´s have been effectively used for the sensitivity solutions. There is described comparison between methods for derivation transfer function: nullor modified Coates flow graph symbolic analysis and the two graph method for symbolic analysis. There is shown graph modified by nodal voltage method with intermediate numeric step, as well. As is given, in some cases the two graph method thanks its clarity is more useful.","PeriodicalId":336454,"journal":{"name":"2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127739325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Concept of 2-Layer Routing for Wireless 5G Networks and Beyond 无线5G及以后网络的两层路由概念
2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-01 DOI: 10.1109/RADIOELEK.2019.8733580
Dávid Hrabčák, L. Dobos, J. Papaj
{"title":"The Concept of 2-Layer Routing for Wireless 5G Networks and Beyond","authors":"Dávid Hrabčák, L. Dobos, J. Papaj","doi":"10.1109/RADIOELEK.2019.8733580","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2019.8733580","url":null,"abstract":"In this paper, the concept o 2-Layer routing for wireless 5G networks is presented. A new fifth generation of the network along with the platform known as the Internet of Things (IoT) are an upcoming trend not only in the commercial market but also in the research area. The 5G networks and IoT will be part of smart homes, smart cities and every aspect of our lives. They are considered as a promising technology, that interconnects different types of existing networks into one functional network. In this paper, a brief vision of utilization and areas of deployment of 2-Layered network model consisted of Wireless Sensor Network (WSN) and Mobile Ad-Hoc Network (MANET) is described along with communication technologies and protocols needed for the functionality of 2-Layered model. Presented simulations prove that interconnection of MANET network with WSN network provides faster data delivery and higher data rates than traditional WSN network since MANET nodes are able to carry data load from WSN sensors. Therefore, utilization of presented 2-Layered model will be useful in disaster scenarios or data harvesting, when urgent data needs to be delivered quickly.","PeriodicalId":336454,"journal":{"name":"2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126078611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Deep Learning Techniques for Speech Emotion Recognition: A Review 语音情感识别的深度学习技术综述
2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-01 DOI: 10.1109/RADIOELEK.2019.8733432
S. Pandey, H. S. Shekhawat, S. Prasanna
{"title":"Deep Learning Techniques for Speech Emotion Recognition: A Review","authors":"S. Pandey, H. S. Shekhawat, S. Prasanna","doi":"10.1109/RADIOELEK.2019.8733432","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2019.8733432","url":null,"abstract":"This paper presents an introduction to various deep learning techniques with the aim of capturing and classifying emotional state from speech utterances. Architectures such as Convolutional Neural Network(CNN) and Long Short-Term Memory(LSTM) have been used to test the emotion capturing capability from various standard speech represenations such as mel spectrogram, magnitude spectrogram and Mel-Frequency Cepstral Coefficients (MFCC’s) on two popular datasets- EMO-DB and IEMOCAP. Experimental findings along with reasoning have been presented as to which architecture and feature combination is better suited for the purpose of speech emotion recognition. This work explores the widely used basic deep learning architectures used in literature.","PeriodicalId":336454,"journal":{"name":"2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121084636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 53
Optimizing Bias Point of High Efficiency Class-B GaN Power Amplifier for the Best Efficiency 优化高效b类氮化镓功率放大器的偏置点以获得最佳效率
2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-01 DOI: 10.1109/RADIOELEK.2019.8733566
O. Fiser, T. Gotthans
{"title":"Optimizing Bias Point of High Efficiency Class-B GaN Power Amplifier for the Best Efficiency","authors":"O. Fiser, T. Gotthans","doi":"10.1109/RADIOELEK.2019.8733566","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2019.8733566","url":null,"abstract":"High performance amplifiers are always a demanding component in the world of wireless communication. The amplifier is the heart that drives each radio system. We have designed and developed a high performance one-stage class-B GaN power amplifier for drone applications in the S-band (at 1,6 GHz) with maximum output power 6 W. This paper compares fixed settings of the bias point option and optimized bias point for the best efficiency within the entire output power range. Applying the proposed method, that is particularly advantageous for low power performance to improve efficiency by more than 15 %.","PeriodicalId":336454,"journal":{"name":"2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130977301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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