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Introduction to Deep Learning Possibilities in Communication Systems 通信系统中深度学习的可能性介绍
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550825
Ivana Žeger, G. Šišul
{"title":"Introduction to Deep Learning Possibilities in Communication Systems","authors":"Ivana Žeger, G. Šišul","doi":"10.1109/ELMAR52657.2021.9550825","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550825","url":null,"abstract":"The considerable requests imposed on modern communication systems have inspired re-evaluation of the existing well-defined and elaborated communication theory. It has become debatable whether the current system implementations have become obsolete or may be able to cope with the challenges if combined with new technologies. The idea of developing entirely new approaches has also risen. Recent advances in machine learning and especially deep learning techniques indicate possible new research directions. This paper states the reasons behind the introduction of deep learning in communications. The paper provides the separation of the existing research procedures. Special focus is put on analyzing different areas of appliance and defining their advantages and disadvantages, including the formation of end-to-end communication systems as autoencoders and neural network contribution in signal detection and modulation classification. The results indicate strong usage potential of deep learning in communications in not already optimized areas.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116706508","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
Design and Optimization of Air Core Magnetorquers for Attitude Control of LEO Nanosatellites 用于低轨纳米卫星姿态控制的空芯磁振器设计与优化
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550888
Ivan Indir, Karla Sever, I. Vnučec, J. Lončar
{"title":"Design and Optimization of Air Core Magnetorquers for Attitude Control of LEO Nanosatellites","authors":"Ivan Indir, Karla Sever, I. Vnučec, J. Lončar","doi":"10.1109/ELMAR52657.2021.9550888","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550888","url":null,"abstract":"Magnetorquers are widely used electromagnetic actuators for attitude control of low-Earth orbit nanosatellites. Due to the limited power budget, strict volume and mass constraints of standard nanosatellite formats, the magnetorquers need to be carefully designed. An optimal magnetorquer exhibits the required magnetic dipole moment while minimizing the mass and power consumption. Here, a multiobjective optimization based on the genetic algorithm is adopted to design two air core magnetorquers. The presented approach allows a designer to set acceptable range of the design parameters, which makes it timeefficient, powerful, and versatile as it can be easily applied to different design cases. The preliminary resistance measurements of the two prototyped magnetorquers show excellent agreement with the calculations within 3%.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"66 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113933085","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
A Research Setup Demonstrating Flexible Industry 4.0 Production 展示柔性工业4.0生产的研究机构
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550961
Sune Chung Jepsen, T. Worm, Aslak Johansen, S. Lazarova-Molnar, M. Kjærgaard, E. Kang, J. Friederich, Juan Esteban Heredia Mena, R. Soltani, Sune Lundø Sørensen, Jens Hjort Schwee
{"title":"A Research Setup Demonstrating Flexible Industry 4.0 Production","authors":"Sune Chung Jepsen, T. Worm, Aslak Johansen, S. Lazarova-Molnar, M. Kjærgaard, E. Kang, J. Friederich, Juan Esteban Heredia Mena, R. Soltani, Sune Lundø Sørensen, Jens Hjort Schwee","doi":"10.1109/ELMAR52657.2021.9550961","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550961","url":null,"abstract":"The recent Industry 4.0 (I4.0) initiative has a heavy focus on enabling flexible production, such that production systems can react dynamically and cost-effectively to respond to market needs. For this reason, we need demonstration facilities to advance research within the I4.0 production and promote advanced production processes for industries. This paper aims to introduce a setup that we have developed for our University’s I4.0 Laboratory (I4.0 lab) that enables advanced and flexible experiments in terms of use-cases for advanced production processes and experiments with both robotics and automated production solutions and software. The presented work is part of a more extensive constructive research process and our experience with setting up an advanced cell-based production line. The contribution of the paper is 1) the analysis of requirements for an I4.0 research platform, 2) a model for an I4.0 laboratory, 3) the application of the constructive research method to the I4.0 laboratory, 4) a proposal for a concrete research setup, and 5) outlining further research questions, experiments, and projects that can be based on the setup.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127063312","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
Creating Representative Urban Motorway Traffic Scenarios: Initial Observations 创建具有代表性的城市高速公路交通场景:初步观察
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550867
Filip Vrbanić, Mladen Miletić, E. Ivanjko, Ž. Majstorović
{"title":"Creating Representative Urban Motorway Traffic Scenarios: Initial Observations","authors":"Filip Vrbanić, Mladen Miletić, E. Ivanjko, Ž. Majstorović","doi":"10.1109/ELMAR52657.2021.9550867","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550867","url":null,"abstract":"Traffic patterns are useful for analyzing and identifying representative traffic scenarios from traffic data. Traffic scenarios are important when machine learning is used for traffic control to ensure good controller performance in all cases. This article tackles the problem of identifying relevant scenarios from clustered data for urban mobility analysis. The unsupervised learning approaches k-means, principal component analysis, and self-organizing maps were applied on real traffic data from Slovenian motorways to analyze and group traffic scenarios. Obtained observations present a solid foundation for future research on a wide-scale data-set, including data from more measuring points for creating relevant traffic scenarios for learning of traffic controllers.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114536610","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
Review of Ballast Water Management 压载水管理综述
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/elmar52657.2021.9551002
R. Ivce, A. Zekić, Đani Mohović, Antoni Krišković
{"title":"Review of Ballast Water Management","authors":"R. Ivce, A. Zekić, Đani Mohović, Antoni Krišković","doi":"10.1109/elmar52657.2021.9551002","DOIUrl":"https://doi.org/10.1109/elmar52657.2021.9551002","url":null,"abstract":"Ballast water provides to ship appropriate maneuverability, seaworthiness, cargo worthiness and it is essential to the safe and efficient operation of ship. The limits of organism concentration in ballast water allowed to be discharged into portʼs aquatorium were set by the International Maritime Organization (IMO). Management of ballast water and sediment has been introduced as obligatory since 2017. by the International Convention for the Control and Management of Shipʼs Ballast Water and Sediments. Ballast water treatment methods (Standard D2), significantly reduce the risk of spreading of invasive species through ballast in compare by water exchange methods (Standard D1). The treatment of ballast water with active substances may lead to the release of those substances into the environment and the goal of this paper is an introduction to the issue of possible significant and harmful changes in the marine environment due to the ballast water treatment with active substances. The Shore Based Treatment System is suggested by authors as one of acceptable solutions for certain category of ships. Also mentioned system provides better control of ballast water treatment and it generally may help to improve Ballast Water Management.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124600941","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
Entropy-Based Extraction of Useful Content from Spectrograms of Noisy Speech Signals 基于熵的噪声语音信号谱图有用内容提取
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550891
Ana Vrankovic, I. Ipšić, J. Lerga
{"title":"Entropy-Based Extraction of Useful Content from Spectrograms of Noisy Speech Signals","authors":"Ana Vrankovic, I. Ipšić, J. Lerga","doi":"10.1109/ELMAR52657.2021.9550891","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550891","url":null,"abstract":"In the paper, we extend and apply the 2D local entropy method (2DLEM) used for signal time-frequency repre-sentation to useful content extraction from noisy speech signals. In our previous work, we presented the 2D local entropy method (2DLEM) and tested it on synthetic signals and a small number of real-world signals. We now extend the application of our method by applying it to recorded speech signals combined with noise from different sources. The database we used is commonly used in speech recognition, where tested methods usually have the best result achieved on clean signals without added noise or on denoised signals. The 2DLEM method is used for the extraction of useful content, and in this paper, we test it in real-world scenarios. Our results show promising results for all tested signals regardless of the noise source or signal-to-noise ratios (SNRs). Combining the 2DLEM method with speech recognition methods could improve the performance of speech recognition and understanding systems.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124880162","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
Solution for Autonomous Vehicle Parking 自动泊车解决方案
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550834
Marko Kuprešak, M. Vranješ, Denis Vajak, Dusan Zivkov
{"title":"Solution for Autonomous Vehicle Parking","authors":"Marko Kuprešak, M. Vranješ, Denis Vajak, Dusan Zivkov","doi":"10.1109/ELMAR52657.2021.9550834","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550834","url":null,"abstract":"With the advancement of technology, there is a significant development in automotive industry, where the vehicle itself performs more and more driving functions. The number of Advanced Driver Assistance Systems (ADASs) has been rising significantly. In this paper, the solution for autonomous vehicle parking is proposed. Firstly, an algorithm that detects parking spaces (PSs) and classifies them only by processing frames received from the camera placed on the side of the ego vehicle was developed. Furthermore, an algorithm for performing the autonomous vehicle parking in different ways (forward/backward, left/right side of the road) at detected free PS is developed. The solution was developed using Python programing language and OpenCV library and tested in CARLA simulator. Test results show that the algorithm correctly detects and classifies PSs in 100% of test cases, whereas after that the success of the parking process itself was 88%. The algorithm is capable of processing 10 frames per second, thus allowing real-time operation for typical vehicle speed during parking process.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117194098","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 Gradient Descent Algorithm for Attitude Estimation 姿态估计中梯度下降算法的评价
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550764
Karla Sever, Ivan Indir, I. Vnučec, J. Lončar
{"title":"Evaluation of Gradient Descent Algorithm for Attitude Estimation","authors":"Karla Sever, Ivan Indir, I. Vnučec, J. Lončar","doi":"10.1109/ELMAR52657.2021.9550764","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550764","url":null,"abstract":"Estimation of object’s attitude plays significant role in many fields such as consumer electronics, robotics, and satellite missions. Here, an iterative method for attitude estimation based on the gradient descent algorithm is implemented and evaluated. Although the number of iterations and processing load of iterative algorithms are hardly predictable, which may represent a challenge in real-time applications, the presented approach provides flexibility in adjusting the complexity of the algorithm to a targeted embedded system. The relation simulation results show the between the maximum number of iterations, attitude estimation error and convergence rate, that can be set through several user-defined parameters according to the application requirements and computational resources.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121052129","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
Underwater Image Enhancement on Low-Cost Hardware Platform 基于低成本硬件平台的水下图像增强
2021 International Symposium ELMAR Pub Date : 2021-09-13 DOI: 10.1109/ELMAR52657.2021.9550919
A. Kis, H. Balta, Cosmin Ancuti
{"title":"Underwater Image Enhancement on Low-Cost Hardware Platform","authors":"A. Kis, H. Balta, Cosmin Ancuti","doi":"10.1109/ELMAR52657.2021.9550919","DOIUrl":"https://doi.org/10.1109/ELMAR52657.2021.9550919","url":null,"abstract":"In the recent years several cost effective and versatile remote operated vehicles (ROV) have been developed. However, these drones are equipped with low powerful hardware platforms. In this work we present an underwater image enhancement solution that works effectively on such hardware platforms. The approach is built on the underwater optical model and estimates locally the backscattered light component. In order to compute an optimal image patch size, we estimate two complementary values of the local backscattered light (an estimate for a large patch size and one for a small patch size) that are averaged in an optimal value. The transmission map is computed based on the well-known dark-channel prior (DCP) [1]. Finally, the results are yielded by inverting the simplified optical model using the estimated values of the local backscattered light an the trans-mission. The method was implemented and tested on Raspberry Pi. Our extensive experiments show that the proposed technique is computationally effective but also competitive compared to several specialized techniques.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116636225","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: 2
Welcome Speech of the President of Croatian Society Electronics in Marine - ELMAR, Zadar 克罗埃西亚电子学会会长在扎达尔埃尔玛海事中心致欢迎辞
2021 International Symposium ELMAR Pub Date : 2005-06-08 DOI: 10.1109/ELMAR.2005.193620
B. Zovko-Cihlar
{"title":"Welcome Speech of the President of Croatian Society Electronics in Marine - ELMAR, Zadar","authors":"B. Zovko-Cihlar","doi":"10.1109/ELMAR.2005.193620","DOIUrl":"https://doi.org/10.1109/ELMAR.2005.193620","url":null,"abstract":"It is a great pleasure to welcome you to the 52nd International Symposium ELMAR-2010 that continues the tradition of ELMAR symposiums in Zadar. We are very honoured that International Symposium ELMAR has 52 years of continuous tradition. ELMAR symposium is the oldest symposium in Europe.","PeriodicalId":410503,"journal":{"name":"2021 International Symposium ELMAR","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134623716","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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