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2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO)最新文献

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Closed-form approximation of Hilbert transforms of Gaussian derivatives based on weighted polynomial fitting 基于加权多项式拟合的高斯导数Hilbert变换的闭型逼近
2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) Pub Date : 2018-05-28 DOI: 10.23919/MIPRO.2018.8400023
Goran Molnar, A. Milos, M. Vucic
{"title":"Closed-form approximation of Hilbert transforms of Gaussian derivatives based on weighted polynomial fitting","authors":"Goran Molnar, A. Milos, M. Vucic","doi":"10.23919/MIPRO.2018.8400023","DOIUrl":"https://doi.org/10.23919/MIPRO.2018.8400023","url":null,"abstract":"Hilbert transforms of Gaussian derivatives are related to Dawson's integral. Since this integral cannot be expressed in a closed form, various methods for the approximation of the derivatives have been developed. A closed-form approximation can be obtained by using the weighted polynomial fitting in which Gaussian function is used as the weighting function. Such an approach results in explicit approximation formulas. In literature, they are available only for the derivatives of the second, third, and fourth order. Furthermore, they utilize only low-order polynomials. In this paper, we propose an approximation of the Hilbert transforms of the Gaussian derivatives of arbitrary orders, which utilize high-order polynomials. The coefficients of these polynomials are obtained by using the least-squares error criterion. Closed-form expressions are provided for their calculation.","PeriodicalId":431110,"journal":{"name":"2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO)","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132260925","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
Methods for attenuation of unmanned aerial vehicle noise 无人机噪声的衰减方法
2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) Pub Date : 2018-05-27 DOI: 10.23919/MIPRO.2018.8400169
D. Miljkovic
{"title":"Methods for attenuation of unmanned aerial vehicle noise","authors":"D. Miljkovic","doi":"10.23919/MIPRO.2018.8400169","DOIUrl":"https://doi.org/10.23919/MIPRO.2018.8400169","url":null,"abstract":"Unmanned aerial vehicles (UAVs) like drones (quadcopters, hexacopters, octocopters etc.) can be a source of a significant acoustic noise. High noise makes them less suitable for use in densely populated urban areas, particularly during take-off, landing and low level flight, due to the noise annoyance. This paper reviews methods and proposes some concepts for attenuation of UAV noise. Both passive and active solutions are considered. Solutions with piston engine silencer, Q-tip propeller, more propeller blades, absorptive and reflective barrier, ducted propeller, sound absorbing ducts, synchrophaser, multichannel active noise cancellation (ANC) system with secondary sources circularly arranged around the propeller and the system with magnetically excited propeller blades are mentioned.","PeriodicalId":431110,"journal":{"name":"2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115869453","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: 30
Simple secondary path modeling for active noise control using waveform synthesis 基于波形合成的主动噪声控制的简单二次路径建模
2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) Pub Date : 2018-05-27 DOI: 10.23919/MIPRO.2018.8400170
D. Miljkovic
{"title":"Simple secondary path modeling for active noise control using waveform synthesis","authors":"D. Miljkovic","doi":"10.23919/MIPRO.2018.8400170","DOIUrl":"https://doi.org/10.23919/MIPRO.2018.8400170","url":null,"abstract":"Active noise control algorithms for real world applications regularly use some kind of digital filtering and adaptation to compensate for the influence of the secondary path. Such is the FxLMS algorithm with techniques for offline and online estimation of the secondary path, suitable both for broadband and narrowband noise. When silencing periodic noise using waveform synthesis, much simplified solution can be used. Instead of a long adaptive filter, a simple delay can be used. After initial off-line calibration, delay values are stored in a lookup table. These values are used later instead of adaptive filter and may change with the frequency of repeating waveform. It is a simple and intuitive solution that poses some restriction on phase response of used secondary source. Due to the low computational requirements it is suitable for implementation using simple and low cost microcontroller.","PeriodicalId":431110,"journal":{"name":"2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132723624","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
Acceptance of mobile technologies and m-learning in higher education learning: An explorative study at the Faculty of Humanities and Social Science at the University of Zagreb 在高等教育学习中接受移动技术和移动学习:萨格勒布大学人文与社会科学学院的一项探索性研究
2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) Pub Date : 2018-05-25 DOI: 10.23919/MIPRO.2018.8400137
Radovan Vrana
{"title":"Acceptance of mobile technologies and m-learning in higher education learning: An explorative study at the Faculty of Humanities and Social Science at the University of Zagreb","authors":"Radovan Vrana","doi":"10.23919/MIPRO.2018.8400137","DOIUrl":"https://doi.org/10.23919/MIPRO.2018.8400137","url":null,"abstract":"With over 6 billion people having an internet connected mobile device (UNESCO), m-learning has established a solid basis for its implementation worldwide. To become truly successful in this activity, m-learning needs motivated students who use mobile technologies in their educational activities on a daily basis. Since students present a large group of users highly exposed to mobile technologies, it is expected that their views and actual use of mobile technologies in their education will influence the direction of further developments of m-learning positively. One of the recent theories which is related to the acceptance of mobile technologies is the unified theory of acceptance and use of technology (UTAUT). In this paper, this theory is applied in understanding of acceptance and use of mobile technologies by students for further advancement of m-learning. This paper presents the results of an explorative study of the students at the Faculty of Humanities and Social Sciences, at the University of Zagreb, Croatia about acceptance mobile technologies and m-learning. The results of this study would help in further development of m-learning at the Faculty of Humanities and Social Sciences.","PeriodicalId":431110,"journal":{"name":"2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131343774","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: 12
Measurement of the effects of e-learning courses gamification on motivation and satisfaction of students 电子学习课程游戏化对学生动机和满意度影响的测量
2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) Pub Date : 2018-05-25 DOI: 10.23919/MIPRO.2018.8400149
A. Bernik, G. Bubas, D. Radošević
{"title":"Measurement of the effects of e-learning courses gamification on motivation and satisfaction of students","authors":"A. Bernik, G. Bubas, D. Radošević","doi":"10.23919/MIPRO.2018.8400149","DOIUrl":"https://doi.org/10.23919/MIPRO.2018.8400149","url":null,"abstract":"In this paper, we present the results of a study which was conducted in two stages. The first part of the paper contains literature search findings and analyzes the existing self-assessment scales for measuring motivation and satisfaction of students that were developed by other authors. In the second part of our study we created a battery of self-assessment measures for collecting data for an overarching set of gamification-related constructs/variables selected in accordance to those that are reported in literature). These scales were constructed by (a) adaptation and improvement of items from existing measures and (b) creation of novel items for measures of constructs that were found to be important in research articles on gamification and educational games. The initial empirical evaluation of this new questionnaire (battery of assessment scales) was performed on a large convenience sample of students (N=201) who attended a hybrid course on computer programming. These respondents were divided into an experimental group, which used gamified e-learning course material, and a control group, which used a parallel (non-gamified) version of the e-learning course with equal theoretical content/For each self-assessment scale of the questionnaire Cronbach alpha coefficients were calculated and the scales were slightly corrected to improve their internal consistency. We report the results concerning the effects of gamification on motivation and satisfaction, which were measured by respective assessment scales.","PeriodicalId":431110,"journal":{"name":"2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123747449","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: 21
Two years of gamification of the course — Lessons learned 两年的课程游戏化——经验教训
2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) Pub Date : 2018-05-24 DOI: 10.23919/MIPRO.2018.8400140
D. Kermek, Matija Novak, Matija Kaniski
{"title":"Two years of gamification of the course — Lessons learned","authors":"D. Kermek, Matija Novak, Matija Kaniski","doi":"10.23919/MIPRO.2018.8400140","DOIUrl":"https://doi.org/10.23919/MIPRO.2018.8400140","url":null,"abstract":"Gamification is used in different levels of education (elementary, high school, university). Many research studies deal with ways to improve the education process by using game mechanics and other game-based elements in their teaching activities. This paper presents our experience with a gamified course in two consecutive academic years. In the first year, half of the students used the gamified version of the course (experimental group), and the other half of the students did not (control group). In the second year, the entire student population of the course was using an improved gamified version of the course based on the feedback from the first year. We analysed the data and compared these two years in many elements.","PeriodicalId":431110,"journal":{"name":"2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132347606","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: 4
Discrete simulation modeling of intelligent passenger boarding 智能旅客登机的离散仿真建模
2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) Pub Date : 2018-05-24 DOI: 10.23919/MIPRO.2018.8400230
Dino Pavlic, Mario Jadrić, M. Ćukušić
{"title":"Discrete simulation modeling of intelligent passenger boarding","authors":"Dino Pavlic, Mario Jadrić, M. Ćukušić","doi":"10.23919/MIPRO.2018.8400230","DOIUrl":"https://doi.org/10.23919/MIPRO.2018.8400230","url":null,"abstract":"The aim of this paper is to explore the potential of intelligent passenger boarding systems for airports. To investigate the implications of smart systems implementation, specifically in the context of internal business processes and organizational unit optimization, discrete simulation modeling was performed. The simulation model of the passenger boarding process at Split Airport was developed integrating two different variants: i) validated as-is process simulation and ii) to-be process simulation of the process supported by intelligent passenger boarding technology. Special attention was given to model validation. Significant degree of optimization was achieved in the intelligent passenger boarding simulation experiment, thus supporting future decisions regarding self boarding solutions This research demonstrates the potential of discrete simulation for exploring benefits of using smart technologies in airport operations as a part of ongoing smart transport and smart mobility initiatives and solutions.","PeriodicalId":431110,"journal":{"name":"2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO)","volume":"310 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124407633","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: 4
Emerging trends in e-logistics 电子物流的新趋势
2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) Pub Date : 2018-05-23 DOI: 10.23919/MIPRO.2018.8400244
G. Miscevic, E. Tijan, Drazen Zgaljic, Mladen Jardas
{"title":"Emerging trends in e-logistics","authors":"G. Miscevic, E. Tijan, Drazen Zgaljic, Mladen Jardas","doi":"10.23919/MIPRO.2018.8400244","DOIUrl":"https://doi.org/10.23919/MIPRO.2018.8400244","url":null,"abstract":"In the recent years technological trends behind logistics processes haves evolved significantly, from traditional logistics to widespread use of e-logistics. This transition is of crucial importance for the competitiveness within the logistics market. Internet of Things and Internet of Everything have a strong influence on the logistics itself, though it may not be entirely visible to the end user. Supply chain management changes and evolves, just as much as 3rd-party logistics and 4th-party logistics expand towards 5th-party logistics. E-Logistics develops various disciplines in which cloud-based operations, m-logistics, as well as Mobile Supply Chain Management and augmented reality are important segments in the future of logistics. There are no visible limits to aforementioned development; we are witnessing a completely new paradigm of logistics and supply chain management.","PeriodicalId":431110,"journal":{"name":"2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127219807","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 comparative study on miniature retroreflectors for totally implantable hearing aids using an optical detection of the incus vibration 全植入式助听器微型后向反射器的光学振动检测比较研究
2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) Pub Date : 2018-05-21 DOI: 10.23919/MIPRO.2018.8400047
Z. Djinovic, M. Tomić, R. Pavelka, G. Sprinzl
{"title":"A comparative study on miniature retroreflectors for totally implantable hearing aids using an optical detection of the incus vibration","authors":"Z. Djinovic, M. Tomić, R. Pavelka, G. Sprinzl","doi":"10.23919/MIPRO.2018.8400047","DOIUrl":"https://doi.org/10.23919/MIPRO.2018.8400047","url":null,"abstract":"Optical interferometric detection of the middle ear ossicle vibration is used to get an acoustical signal needed for a totally implantable hearing aid (TIHA). In order to improve the reflectivity, we have attached a lightweight piece of retroreflector to the incus. Three different kinds of retroreflectors were investigated here, using a modified fiber-optic Michelson interferometer, based on a single mode 3×3 coupler and a high-coherence VCSEL light source. The sinusoidal vibration of the target was produced by a PZT, in the acoustic frequency range with amplitudes in the range of several picometers to hundreds of nanometer. The quadrature signals were captured and demodulated while the position of the probing beam to the retroreflector were changing. The evaluation of retroreflectors and probe beam collimating techniques was made in respect of the maximum signal-to-noise ratio and the minimum detectable amplitude of vibrations.","PeriodicalId":431110,"journal":{"name":"2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116981877","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
An overview of thermal face recognition methods
2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) Pub Date : 2018-05-21 DOI: 10.23919/MIPRO.2018.8400200
M. Krišto, Marina Ivasic-Kos
{"title":"An overview of thermal face recognition methods","authors":"M. Krišto, Marina Ivasic-Kos","doi":"10.23919/MIPRO.2018.8400200","DOIUrl":"https://doi.org/10.23919/MIPRO.2018.8400200","url":null,"abstract":"The popularity of surveillance systems grows as well as a need for better security systems particularly in a bad lighting conditions or at night. The aim of a security system is to collect as many details as possible to enable a better recognition of persons. In this paper, a comparison of representative thermal face recognition methods will be given, emphasizing their strengths and weaknesses. Then, trends in the development of surveillance and security systems will be outlined such as fusion of visible and thermal images and use of convolutional neural networks. Also, existing challenges of thermal facial recognition and its applications in a real world will be pointed out.","PeriodicalId":431110,"journal":{"name":"2018 41st International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121325253","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: 36
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