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2019 30th Irish Signals and Systems Conference (ISSC)最新文献

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A Complexity Reduced Non-Uniform Generalized Memory Polynomial Model for Nonlinear Power Amplifier Behavioural Modeling 非线性功率放大器行为建模中一种降低复杂度的非均匀广义记忆多项式模型
2019 30th Irish Signals and Systems Conference (ISSC) Pub Date : 2019-06-01 DOI: 10.1109/ISSC.2019.8904969
Anqiao Hu, Declan Byrne, R. Farrell, J. Dooley
{"title":"A Complexity Reduced Non-Uniform Generalized Memory Polynomial Model for Nonlinear Power Amplifier Behavioural Modeling","authors":"Anqiao Hu, Declan Byrne, R. Farrell, J. Dooley","doi":"10.1109/ISSC.2019.8904969","DOIUrl":"https://doi.org/10.1109/ISSC.2019.8904969","url":null,"abstract":"Power amplifiers are widely employed electronic devices in various fields such as mobile networks and radio frequency (RF) transceivers. To achieve efficient operations, power amplifiers can often suffer from nonlinearity problems. This problem can be mitigated through the use of linearization techniques, such as digital predistortion, regarded as the most promising solution to power amplifier linearization. Behavioural modeling is a substantial part of the digital predistortion, responsible for acquiring the coefficients that are necessary to linearize the power amplifier. A Complex Reduced Non-Uniform Generalized Memory Polynomial model was proposed to reach comparable performance of accuracy as Memory Polynomial Model with reduced complexities. The proposed model was tested with a 5MHz LTE signal measured at the input and output of a Doherty PA under different conditions of nonlinearities, memory effects and attenuations as well as PA working powers. It can be observed that the proposed model shows superior accuracy at low complexities, when the PA has higher levels of nonlinearity and memory depth while still maintaining low complexities. Over 60% of coefficients reduction could be reached at the same level of accuracy compared to the MP model.","PeriodicalId":312808,"journal":{"name":"2019 30th Irish Signals and Systems Conference (ISSC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122847000","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
Entropy Estimates for the Irish Language 爱尔兰语的熵估计
2019 30th Irish Signals and Systems Conference (ISSC) Pub Date : 2019-06-01 DOI: 10.1109/ISSC.2019.8904926
Sai Chaithanya Kumar Palada, David Malone
{"title":"Entropy Estimates for the Irish Language","authors":"Sai Chaithanya Kumar Palada, David Malone","doi":"10.1109/ISSC.2019.8904926","DOIUrl":"https://doi.org/10.1109/ISSC.2019.8904926","url":null,"abstract":"Entropy estimates for natural languages are useful for a number of reasons. For example, they can be used to estimate the length of a translated text or the amount of text required to make a brute-force attack on an encrypted message feasible. This paper briefly reviews the development of techniques for entropy estimation and then applies modern techniques to Irish text. We believe this addresses a gap in the literature giving an entropy estimate for the Irish language. We discuss our results in the context of entropy estimates for equivalent Egalish text.","PeriodicalId":312808,"journal":{"name":"2019 30th Irish Signals and Systems Conference (ISSC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114735459","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 effective refocusing distance of the light field camera 光场相机的有效再聚焦距离
2019 30th Irish Signals and Systems Conference (ISSC) Pub Date : 2019-06-01 DOI: 10.1109/ISSC.2019.8904964
Rumin Zhang, S. McGrath, Liaoyuan Zeng
{"title":"The effective refocusing distance of the light field camera","authors":"Rumin Zhang, S. McGrath, Liaoyuan Zeng","doi":"10.1109/ISSC.2019.8904964","DOIUrl":"https://doi.org/10.1109/ISSC.2019.8904964","url":null,"abstract":"Nowadays the researches on light field (LF) and synthetic aperture camera have gained rapidly both in theoretical and application fields. However, the widespread analytical model to interpret the principles of digital refocusing still hasnt provided a satisfactory conclusion on the limitation of refocusing or the restriction of depth of field (DOF), which is an inescapable topic in the study of LF applications. In this paper we adopt the canonical 4-D ray space model of LF camera to offer a brief analytical method for the limitation of digital refocusing. By investigating the inner structure and the optical property of the LF camera, we will also derive a quantized assessment of limitation of refocusing theoretically. As for the experiment, we further design validation experiments to test our estimation value just using the consumer-available micro-lens-array (MLA) camera, Lytro1.0. Both the farthest and the closest distance of the refocusing have been verified. In the future, our theoretical work on the limitation of refocusing may play an essential part in the application of LF camera such as depth estimation.","PeriodicalId":312808,"journal":{"name":"2019 30th Irish Signals and Systems Conference (ISSC)","volume":"40 1-2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129973395","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
State-of-the-Art Review of Autonomous Intelligent Vehicles (AIV) Technologies for the Automotive and Manufacturing Industry 面向汽车和制造业的自动智能汽车(AIV)技术的最新进展
2019 30th Irish Signals and Systems Conference (ISSC) Pub Date : 2019-06-01 DOI: 10.1109/ISSC.2019.8904920
Con Cronin, A. Conway, Joseph Walsh
{"title":"State-of-the-Art Review of Autonomous Intelligent Vehicles (AIV) Technologies for the Automotive and Manufacturing Industry","authors":"Con Cronin, A. Conway, Joseph Walsh","doi":"10.1109/ISSC.2019.8904920","DOIUrl":"https://doi.org/10.1109/ISSC.2019.8904920","url":null,"abstract":"Research in Autonomous Intelligent Vehicles (AIV) has been done for the past 25 years and is continuously creating advancements and capabilities. AIVs will out-strip Automated Guided Vehicles (AGV) as leaders of material handling equipment. It is the ability of AIVs to operate remotely and safely with repeatability at the request and demand of the Manufacturing Execution System (MES). Integration of AIV technologies will increase productivity through consistent and seamless transportation of product in current manufacturing environments. AIV technology removes the mundane laborious manual operations from the human operator, offering workers the ability to work in a more meaningful role within the production line. Increased manufacturing output will ultimately benefit the economy and job security. This review paper will examine AIV technologies for advanced flexible manufacturing systems to improve manufacturing processes. The removal of conveyors and the inclusion of AIVs will promote flexibility within the factory floor and increase the realisation of Industry 4.0","PeriodicalId":312808,"journal":{"name":"2019 30th Irish Signals and Systems Conference (ISSC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130041886","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: 11
An investigation into several pitch detection algorithms for singing phrases analysis 几种用于歌曲分析的音高检测算法的研究
2019 30th Irish Signals and Systems Conference (ISSC) Pub Date : 2019-06-01 DOI: 10.1109/ISSC.2019.8904943
Behnam Faghih, J. Timoney
{"title":"An investigation into several pitch detection algorithms for singing phrases analysis","authors":"Behnam Faghih, J. Timoney","doi":"10.1109/ISSC.2019.8904943","DOIUrl":"https://doi.org/10.1109/ISSC.2019.8904943","url":null,"abstract":"This article provides an investigation into four different pitch detection algorithms: pYin, Praat, Phase Lock Loops (PLL)-based, and an Extended Complex Kalman Filter approach. The first two algorithms compute the pitch on a frame-by-frame basis while the latter two work on a sample-by-sample basis. Only in recent years has there been a noticeable increase in the number of papers applying pitch detection techniques to sung phrases. This investigation is done on a dataset contained 76 files of singers. To create a ground truth from the data an alternative approach using the Spear analysis program is applied. The algorithms are compared using a new Singing Data Analyser tool. It was observed that the pYin and Praat are the most reliable algorithms while the PLL and Kalman filter algorithms are very dependent on the user-selected parameters.","PeriodicalId":312808,"journal":{"name":"2019 30th Irish Signals and Systems Conference (ISSC)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114737736","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
Phase-only Digital Encryption using a Three-pass Protocol 使用三通道协议的纯阶段数字加密
2019 30th Irish Signals and Systems Conference (ISSC) Pub Date : 2019-06-01 DOI: 10.1109/ISSC.2019.8904970
J. Blackledge, P. Tobin, W. Govere, S. Sibanda, Cid Mathew Adolfo
{"title":"Phase-only Digital Encryption using a Three-pass Protocol","authors":"J. Blackledge, P. Tobin, W. Govere, S. Sibanda, Cid Mathew Adolfo","doi":"10.1109/ISSC.2019.8904970","DOIUrl":"https://doi.org/10.1109/ISSC.2019.8904970","url":null,"abstract":"This paper considers an application of phase-only digital encryption to the three-pass protocol leading to a new ‘no-key-exchange algorithm’. After providing a study on the theoretical background to the method, an algorithm is presented on a step-by-step basis together with three examples of cryptanalysis. A prototype MATLAB function is provided for validation of the approach and for further development by interested readers.","PeriodicalId":312808,"journal":{"name":"2019 30th Irish Signals and Systems Conference (ISSC)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117200708","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
Circuit Synthesis and Electrical Interpretation of Synchronization in the Kuramoto Model Kuramoto模型中同步的电路综合和电学解释
2019 30th Irish Signals and Systems Conference (ISSC) Pub Date : 2019-06-01 DOI: 10.1109/ISSC.2019.8904942
K. Ochs, Dennis Michaelis, J. Roggendorf
{"title":"Circuit Synthesis and Electrical Interpretation of Synchronization in the Kuramoto Model","authors":"K. Ochs, Dennis Michaelis, J. Roggendorf","doi":"10.1109/ISSC.2019.8904942","DOIUrl":"https://doi.org/10.1109/ISSC.2019.8904942","url":null,"abstract":"Kuramoto oscillator systems are well-studied models to investigate the synchronization process of coupled oscillators in a wide variety of contexts, among them neural networks. The current trend of neuromorphic systems demands electrical circuits for reasons of efficiency, low costs, and high speed. The goal of this work is to study the Kuramoto model with arbitrary coupling structure from a circuit theoretical perspective. For this reason, we synthesize an ideal electrical circuit based on the Kuramoto model which enables an electrical interpretation of its synchronization behavior. Because of the knowledge of voltage, current and power flows in (ideal) electrical devices, circuit synthesis in general can offer perspectives and interpretation that might not be attainable from system theory. We therefore see the structured approach of the synthesis and its electrical interpretation of the well-known Kuramoto model as a general procedure that will increase insights and diversify understanding on neural networks. To achieve this, we utilize the wave digital concept here which offers an especially intuitive view on power flow.","PeriodicalId":312808,"journal":{"name":"2019 30th Irish Signals and Systems Conference (ISSC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128160916","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
Another moving Spur Phenomenon observed in a MASH-based Fractional-N PLL 在基于mash的分数- n锁相环中观察到的另一种移动杂散现象
2019 30th Irish Signals and Systems Conference (ISSC) Pub Date : 2019-06-01 DOI: 10.1109/ISSC.2019.8904972
Valerio Mazzaro, Michael Peter Kennedy
{"title":"Another moving Spur Phenomenon observed in a MASH-based Fractional-N PLL","authors":"Valerio Mazzaro, Michael Peter Kennedy","doi":"10.1109/ISSC.2019.8904972","DOIUrl":"https://doi.org/10.1109/ISSC.2019.8904972","url":null,"abstract":"Recently, other authors have experienced and analysed what has been called wandering spurs. This paper presents observations of what seems to be a similar phenomenon obtained under different simulation conditions. Results are given based on Matlab/Simulink simulations of a type-II CP-PLL with a third order MASH DDSM. Analysis of the repeat period and the rate of the spurs are presented.","PeriodicalId":312808,"journal":{"name":"2019 30th Irish Signals and Systems Conference (ISSC)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125678140","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
The element of user training for SSVEP-based BCI 基于ssvep的脑机接口的用户培训要素
2019 30th Irish Signals and Systems Conference (ISSC) Pub Date : 2019-06-01 DOI: 10.1109/ISSC.2019.8904935
A. Szalowski, D. Picovici
{"title":"The element of user training for SSVEP-based BCI","authors":"A. Szalowski, D. Picovici","doi":"10.1109/ISSC.2019.8904935","DOIUrl":"https://doi.org/10.1109/ISSC.2019.8904935","url":null,"abstract":"The paper investigates the element of training and potential advantages it can offer BCI systems operation using visual stimulation method referred to as Steady-State Visual Evoked Potential (SSVEP). The stimulus is presented in the form of black and white checkerboard displayed by a 12.9” tablet screen. The results of one trained user are compared against twelve untrained counterparts. Only 41.6 % of the untrained users could successfully operate BCI system. The trained user produced signals with amplitude values 2x higher on average compared to the untrained users.","PeriodicalId":312808,"journal":{"name":"2019 30th Irish Signals and Systems Conference (ISSC)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126098603","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
A Systematic Review of Blockchain Hardware Acceleration Architectures 区块链硬件加速架构的系统回顾
2019 30th Irish Signals and Systems Conference (ISSC) Pub Date : 2019-06-01 DOI: 10.1109/ISSC.2019.8904936
Aidan O. Mahony, E. Popovici
{"title":"A Systematic Review of Blockchain Hardware Acceleration Architectures","authors":"Aidan O. Mahony, E. Popovici","doi":"10.1109/ISSC.2019.8904936","DOIUrl":"https://doi.org/10.1109/ISSC.2019.8904936","url":null,"abstract":"The aim of this paper is to provide a systematic literature review of blockchain hardware acceleration. Blockchain technology has achieved significant attention in recent years particularly in the area of cryptocurrency however it is gaining popularity in other applications such as supply chain management and e-government. Based on a structured, systematic review of the relevant literature, we present a classification of the primary areas in blockchain technology that make use of heterogeneous hardware for accelerating certain blockchain functions. Based on these findings, we identify various research gaps and future exploratory directions that are anticipated to be of significant value both for academics and industry practitioners.","PeriodicalId":312808,"journal":{"name":"2019 30th Irish Signals and Systems Conference (ISSC)","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116144487","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
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