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

Accessible Electroencephalograms (EEGs): A Comparative Review with OpenBCI’s Ultracortex Mark IV Headset 无障碍脑电图(eeg):与OpenBCI的超皮质Mark IV耳机的比较回顾

2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-16 DOI: 10.1109/RADIOELEK.2019.8733482

A. Aldridge, Eli Barnes, Cindy L. Bethel, Daniel W. Carruth, M. Koctúrová, Matus Pleva, J. Juhár

引用次数: 22

Visual Quality Assessment Considering Ultra HD, Full HD Resolution and Viewing Distance 考虑超高清、全高清分辨率和观看距离的视觉质量评估

2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-16 DOI: 10.1109/RADIOELEK.2019.8733448

Jan Kufa, T. Kratochvil

引用次数: 6

Operational Frequency Bandwidth Rescalable Implementations of Constant Phase Devices 恒相器件的工作频率带宽可伸缩实现

2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-16 DOI: 10.1109/RADIOELEK.2019.8733559

R. Sotner, J. Jerabek, L. Langhammer, L. Polak, W. Jaikla, P. Prommee

引用次数: 2

Comparison of Class C and High Efficiency Class E Amplifiers at 435 MHz 435 MHz时C类和高效E类放大器的比较

2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-16 DOI: 10.1109/RADIOELEK.2019.8733545

Erik Herceg, T. Urbanec

{"title":"Comparison of Class C and High Efficiency Class E Amplifiers at 435 MHz","authors":"Erik Herceg, T. Urbanec","doi":"10.1109/RADIOELEK.2019.8733545","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2019.8733545","url":null,"abstract":"This article deals with the comparison of class C and class E amplifiers designed with an identical transistor, substrate, and frequency. Both types of amplifiers have a theoretical efficiency of 100 %; however, more attention is paid to class E amplifier, because of its complexity and difficulty of design. The efficiency of both classes reached over 75 %. The working frequency of designed amplifiers was 435 MHz using lumped components. The topology of the class C amplifier is typical with input and output filter matching at the fundamental frequency, and the design of the class E amplifier is with shunt capacitance complemented with series resonant circuit fundamentally tuned. Class E amplifier with a shunt capacitance designed with E-pHEMT transistor is unique, because of small drain voltage which has a distinct influence on switching capacitor value which resulted in hundredths to units of picofarads. The amplifiers were simulated, manufactured and measured results were compared. The class E amplifier is therefore presented at such frequency where transmission lines cannot be used because of their length and even the lumped resonators tuned to higher harmonics frequency start to be undesignable.","PeriodicalId":336454,"journal":{"name":"2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117292494","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

Analysis of Indoor LTE-DL/Wi-Fi Coexistence Scenarios with Automated Measurement Testbed 基于自动化测试平台的室内LTE-DL/Wi-Fi共存场景分析

2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-16 DOI: 10.1109/RADIOELEK.2019.8733549

Jiří Miloš, L. Polak, S. Rozum

引用次数: 5

Novice User Experiences with a Voice-Enabled Human-Robot Interaction Tool 使用语音人机交互工具的新手用户体验

2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-16 DOI: 10.1109/RADIOELEK.2019.8733492

Matus Pleva, J. Juhár, S. Ondáš, Christopher R. Hudson, Cindy L. Bethel, Daniel W. Carruth

{"title":"Novice User Experiences with a Voice-Enabled Human-Robot Interaction Tool","authors":"Matus Pleva, J. Juhár, S. Ondáš, Christopher R. Hudson, Cindy L. Bethel, Daniel W. Carruth","doi":"10.1109/RADIOELEK.2019.8733492","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2019.8733492","url":null,"abstract":"Voice recognition software is a widely adopted tool in a variety of task domains. However, several mission critical systems, which have high security demands cannot allow outside connections to the remote systems that provide voice recognition capabilities. This presents a problem for modern day voice recognition, which is largely cloud based. To address this issue, we leveraged Julius as an offline phoneme-based voice recognizer in order to incorporate voice recognition software into robotic systems for law enforcement officers. In order to address the difficulties that officers with a variety of dialects have when interacting with a phoneme-based voice recognizer, a training tool was developed. This paper examines the lessons learned from the latest implementation of the training tool over the course of several voice-enabled Human-Robot Interaction (HRI) experiments. The majority of these users were novices who had little to no experience with voice recognition software. Interactions were completed at three events in Košice, Slovakia: (1) Museum Night 2018, (2) a private company demonstration, and (3) Technical University of Košice’s Summer Kids University (TUKE for kids) demonstration. The results of the user interaction evaluations highlighted that, through training, novice users could learn to interact with an offline voice recognition system after a short period of time by operating a simulated robotic system.","PeriodicalId":336454,"journal":{"name":"2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"2019 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116970848","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

A Multichannel Data Logger for Monitoring FSO Terminal 一种用于监控FSO终端的多通道数据记录器

2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-16 DOI: 10.1109/RADIOELEK.2019.8733574

P. Skryja, Marek Novák, P. Barcik

引用次数: 0

Symbol Based Statistical RF Fingerprinting for Fake Base Station Identification 基于符号的射频统计指纹识别伪基站

2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-16 DOI: 10.1109/RADIOELEK.2019.8733585

Arslan Ali, G. Fischer

{"title":"Symbol Based Statistical RF Fingerprinting for Fake Base Station Identification","authors":"Arslan Ali, G. Fischer","doi":"10.1109/RADIOELEK.2019.8733585","DOIUrl":"https://doi.org/10.1109/RADIOELEK.2019.8733585","url":null,"abstract":"The identification of fake base station (FBS) in a cellular network has become challenging with the development of various software defined radio platforms and mobile standards. This paper, therefore, presents robust statistical approach to detect unique non-linearities based hardware impairments of the transmitter. Employing the fact that power amplifier (PA) of a regular base station (RBS) is a costly and high precision device with a provision of sophisticated digital predistortion (DPD) hardware implementation and in contrary, this DPD based linearization effort is not spent in existing SDR platforms so PA of an SDR based FBS tends to violate the spectral mask and introduces large amplitude and phase errors in the transmitted signal compared to the RBS. At first, a second order symbol-based error vector magnitude (EVM) approach is triggered at the user equipment (UE) to measure the non-linearity induced by the PA of various SDR based FBS. Afterward, a higher fourth order moment i.e. kurtosis approach has been proposed along with the actual measurement results to determine the noise structuredness of the received signal at UE. The kurtosis on magnitude of extracted complex noise cloud is found to be a strong indicator to identify the FBS.","PeriodicalId":336454,"journal":{"name":"2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125532023","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: 9

An Overview of the IEEE 802.15.4z Standard its Comparison and to the Existing UWB Standards IEEE 802.15.4z标准概述及其与现有UWB标准的比较

2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-16 DOI: 10.1109/RADIOELEK.2019.8733537

P. Sedláček, M. Slanina, Pavel Mašek

引用次数: 25

Microwave Imaging Algorithm for Detecting Brain Disorders 检测脑部疾病的微波成像算法

2019 29th International Conference Radioelektronika (RADIOELEKTRONIKA) Pub Date : 2019-04-16 DOI: 10.1109/RADIOELEK.2019.8733477

Imran M. Saied, T. Arslan

引用次数: 8