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2019 International Conference on Signal, Control and Communication (SCC)最新文献

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Identification of a five-parameter model for a photovoltaic module using hybrid particle swarm optimization and pattern search 基于混合粒子群优化和模式搜索的光伏组件五参数模型辨识
2019 International Conference on Signal, Control and Communication (SCC) Pub Date : 2019-12-01 DOI: 10.1109/SCC47175.2019.9116152
Ines Ben Ali, M. Naouar, E. Monmasson
{"title":"Identification of a five-parameter model for a photovoltaic module using hybrid particle swarm optimization and pattern search","authors":"Ines Ben Ali, M. Naouar, E. Monmasson","doi":"10.1109/SCC47175.2019.9116152","DOIUrl":"https://doi.org/10.1109/SCC47175.2019.9116152","url":null,"abstract":"This paper aims at determining the five parameters of the single-diode model of a photovoltaic (PV) module based on data-sheet parameters. For this purpose, a system of five non-linear analytical equations free of any simplifications, describing the PV module in three main operating points, has been formulated as a constrained nonlinear optimization problem. The latter has been solved by using a hybrid Particle Swarm Optimization and Pattern Search (HPSOPS) algorithm. The proposed procedure with the hybrid evolutionary algorithm has proven its effectiveness and reliability to estimate the five parameters, and its ability to reproduce the PV module characteristics for different solar irradiance and temperature conditions. The impact of solar irradiance and temperature variations on the single-diode parameters values has been also highlighted.","PeriodicalId":133593,"journal":{"name":"2019 International Conference on Signal, Control and Communication (SCC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121674352","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 Impact of Using Additional Pilots on the Performance of Massive MIMO Systems 使用额外导频对大规模MIMO系统性能的影响
2019 International Conference on Signal, Control and Communication (SCC) Pub Date : 2019-12-01 DOI: 10.1109/SCC47175.2019.9116177
Abdelfettah Belhabib, M. Boulouird, M. Hassani
{"title":"The Impact of Using Additional Pilots on the Performance of Massive MIMO Systems","authors":"Abdelfettah Belhabib, M. Boulouird, M. Hassani","doi":"10.1109/SCC47175.2019.9116177","DOIUrl":"https://doi.org/10.1109/SCC47175.2019.9116177","url":null,"abstract":"Pilot contamination is a well-known constraint hampering the implementation of Massive MIMO technology. To avoid this problem of contamination, Soft Pilot Reuse (SPR) strategy was proposed, which is mainly based on assigning orthogonal pilot sequences to users that suffer the most on the problem of pilot contamination. In other words, the users located in the edges of cells are highly affected by the inter-cell interferences generated by the edge users of adjacent cells. Consequently, they should be assigned by orthogonal pilot sequences. This paper firstly divides users of each cell into edge users and center users that based on the users large scale fading coefficients compared to a threshold, which is specific to each cell. Thereafter, edge users are assigned with orthogonal pilot sequences while center users in all cells are obliged to reuse the same set of orthogonal pilot sequences. Moreover, the limit of using additional pilot sequences is derived, therefore the harmful effect of using extra orthogonal pilot sequences on the system throughput is analyzed and proved by simulation results.","PeriodicalId":133593,"journal":{"name":"2019 International Conference on Signal, Control and Communication (SCC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114482752","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
Fast image segmentation for pulmonary lesions using hybrid level set model 基于混合水平集模型的肺病变快速图像分割
2019 International Conference on Signal, Control and Communication (SCC) Pub Date : 2019-12-01 DOI: 10.1109/SCC47175.2019.9116144
Sourour Gargouri, A. Mouelhi, M. Sayadi, S. Labidi, L. Farhat, Majdi Mahersi, S. Zayed
{"title":"Fast image segmentation for pulmonary lesions using hybrid level set model","authors":"Sourour Gargouri, A. Mouelhi, M. Sayadi, S. Labidi, L. Farhat, Majdi Mahersi, S. Zayed","doi":"10.1109/SCC47175.2019.9116144","DOIUrl":"https://doi.org/10.1109/SCC47175.2019.9116144","url":null,"abstract":"The lung cancer radiotherapy treatment widely depends on adequate diagnosis. The radiologists intend to reach an image segmentation efficiency in terms of accuracy and low computation cost. However, the pulmonary lesions segmentation is still considered as a challenging task due to the noise and intensity inhomogeneity present in Computed Tomography (CT). In this study, we proposed to accelerate the nonlinear adaptive level set model, using the Bayesian rule, by incorporated the double well potential in the regularization term to get accurate and fast pulmonary lesion segmentation in CT images. We have tested the proposed method on different sized and localized lesions. All the images were taken from the database without any preprocessing. The experimental results show significant speed improvement without losing the precision of segmentation.","PeriodicalId":133593,"journal":{"name":"2019 International Conference on Signal, Control and Communication (SCC)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128894366","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
Automatic Detection of Weld Defects Based on Hough Transform 基于霍夫变换的焊缝缺陷自动检测
2019 International Conference on Signal, Control and Communication (SCC) Pub Date : 2019-12-01 DOI: 10.1109/SCC47175.2019.9116162
Chiraz Ajmi, Sabra El Ferchichi, A. Zaafouri, K. Laabidi
{"title":"Automatic Detection of Weld Defects Based on Hough Transform","authors":"Chiraz Ajmi, Sabra El Ferchichi, A. Zaafouri, K. Laabidi","doi":"10.1109/SCC47175.2019.9116162","DOIUrl":"https://doi.org/10.1109/SCC47175.2019.9116162","url":null,"abstract":"Weld defect detection is an important application in the field of Non-Destructive Testing (NDT). These defects are mainly due to manufacturing errors or welding processes. In this context, image processing especially segmentation is proposed to detect and localize efficiently different types of defects. It is a challenging task since radiographic images have deficient contrast, poor quality and uneven illumination caused by the inspection techniques. The usual segmentation technique uses a region of interest ROI from the original image. In this article, a robust and automatic method is presented to detect linear defect from the original image without selection of ROI based on canny detector and a modified ‘Hough Transform’ technique. This task can be subdivided into the following steps: firstly, preprocessing step with Gaussian filter and contrast stretching; secondly, segmentation technique is used to isolate weld region from background and non-weld using Adaptative Thresholding and to extract edges; thirdly, detection, location of linear defect and limiting the welding area by Hough Transform. The experimental results show that our proposed method gives good performance for industrial radiographic images.","PeriodicalId":133593,"journal":{"name":"2019 International Conference on Signal, Control and Communication (SCC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134029178","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
Using the Finite Element Method to calculate Parameters for a Detailed Model of Power Transmission Line for Default Diagnosis 用有限元法对输电线路故障诊断详细模型进行参数计算
2019 International Conference on Signal, Control and Communication (SCC) Pub Date : 2019-12-01 DOI: 10.1109/SCC47175.2019.9116101
M. Hichem, Haj Abdalah Hssan
{"title":"Using the Finite Element Method to calculate Parameters for a Detailed Model of Power Transmission Line for Default Diagnosis","authors":"M. Hichem, Haj Abdalah Hssan","doi":"10.1109/SCC47175.2019.9116101","DOIUrl":"https://doi.org/10.1109/SCC47175.2019.9116101","url":null,"abstract":"The power cable are considered to be one of the most essential and costly pieces of equipment in a power system. Identifying insulation faults in the shortest possible time prevents the occurrence of irreparable damage. This paper investigate the evolution study of the per unit length parameters (line parameters) of a power cable according to the frequency. So, the study was performed using the numerical method of finite elements. Through this method we exploit the FEMM (Finite Element Magnetic Method) software which gives the values of these parameters for a wide range of frequencies. Hence, we can accomplish the exact parameters per unit length evolution of the cable depending frequency. The importance of this method is that it allows for system analysis in the transitional regime that facilitates the identification of cable parameters and diagnostics in case of solid fault knowing the variation of parameters.","PeriodicalId":133593,"journal":{"name":"2019 International Conference on Signal, Control and Communication (SCC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114674693","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
Comparative study of some Maximum Power Point Tracking algorithms 几种最大功率点跟踪算法的比较研究
2019 International Conference on Signal, Control and Communication (SCC) Pub Date : 2019-12-01 DOI: 10.1109/SCC47175.2019.9116145
Belgacem Mbarki, Fethi Farhani, A. Zaafouri
{"title":"Comparative study of some Maximum Power Point Tracking algorithms","authors":"Belgacem Mbarki, Fethi Farhani, A. Zaafouri","doi":"10.1109/SCC47175.2019.9116145","DOIUrl":"https://doi.org/10.1109/SCC47175.2019.9116145","url":null,"abstract":"This paper presents a comparison study, under different solar irradiation and temperature, of Three most used Maximum Power Point Tracking (MPPT) methods for photovoltaic system (PV) power systems: Perturb and Observe (P&O) and Incremental Conductance (InCnd), as constant tracking step, and Fuzzy Logic (FL) based MPPT, as variable tracking step. Using identical PV, under strictly the same set of technical and meteorological conditions, a comparison of these Three algorithms is done. Following three criteria, Stability, Rapidity and energy efficiency, this comparison shows the advantage of the use of an MPPT with a variable tracking step. The extracted energies by all three methods are almost identical with a slight advantage for the FL algorithm.","PeriodicalId":133593,"journal":{"name":"2019 International Conference on Signal, Control and Communication (SCC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122104229","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
Impact of emotion type on emotion recognition through vocal channel 情绪类型对声音通道情绪识别的影响
2019 International Conference on Signal, Control and Communication (SCC) Pub Date : 2019-12-01 DOI: 10.1109/SCC47175.2019.9116103
Farah Chenchah, Z. Lachiri
{"title":"Impact of emotion type on emotion recognition through vocal channel","authors":"Farah Chenchah, Z. Lachiri","doi":"10.1109/SCC47175.2019.9116103","DOIUrl":"https://doi.org/10.1109/SCC47175.2019.9116103","url":null,"abstract":"The topic of emotion in computing is enjoying recent and growing attention. Until recently, the role of speech to understand emotion has been frequently ignored. In this paper, we have developed an emotion recognition system based on vocal channel highlighting the impact of the link between the features used for characterizing emotion state and the nature of emotion. For the purpose of this work, we have examined several features extraction methods (MFCC, LFCC and Energy) applied with Hidden Markov Model (HMM) as classification system. The performance of the proposed approach is evaluated on real condition speech signal (IEMOCAP database). It is shown that the recognition of emotion varies significantly depending on the nature of emotion. Furthermore, we demonstrate that each emotion type is better characterized by a different type through the battery of speech feature used.","PeriodicalId":133593,"journal":{"name":"2019 International Conference on Signal, Control and Communication (SCC)","volume":"293 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124272590","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
Design of a low order controller with auto tuning gain 低阶增益自整定控制器的设计
2019 International Conference on Signal, Control and Communication (SCC) Pub Date : 2019-12-01 DOI: 10.1109/SCC47175.2019.9116158
Maher Ben Hariz, F. Bouani
{"title":"Design of a low order controller with auto tuning gain","authors":"Maher Ben Hariz, F. Bouani","doi":"10.1109/SCC47175.2019.9116158","DOIUrl":"https://doi.org/10.1109/SCC47175.2019.9116158","url":null,"abstract":"This work proposes the design of a low order controller with temporal specifications. The controller parameters are determined by solving a non convex optimization problem. In order to annul the steady state error, the Genetic Algorithm is used for determining a gain so that closed-loop response specifications are satisfied. By adapting this procedure, designers have only to specify the desired closed loop response. Simulation results are given to shed light the efficiency of the proposed controller.","PeriodicalId":133593,"journal":{"name":"2019 International Conference on Signal, Control and Communication (SCC)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124754593","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
Scalable and Adaptable Diversity/Multiplexing Trade-Off in a Multi-User Massive-MIMO Environment 多用户大规模mimo环境下可扩展和自适应分集/多路复用权衡
2019 International Conference on Signal, Control and Communication (SCC) Pub Date : 2019-12-01 DOI: 10.1109/SCC47175.2019.9116100
Halima Bergaoui, Yosra Mlayah, F. Tlili, F. Rouissi
{"title":"Scalable and Adaptable Diversity/Multiplexing Trade-Off in a Multi-User Massive-MIMO Environment","authors":"Halima Bergaoui, Yosra Mlayah, F. Tlili, F. Rouissi","doi":"10.1109/SCC47175.2019.9116100","DOIUrl":"https://doi.org/10.1109/SCC47175.2019.9116100","url":null,"abstract":"This paper inquires into the deployment of a scalable and adaptable diversity/multiplexing trade-off in a multi-user massive MIMO context. It studies the BER of an embedded switching between the ZF spatial multiplexing and the Alamouti STBC when it is combined with three beamforming techniques: the ZF-beamforming, the STBC-adaptive beamforming, and the spatial multiplexing-adaptive beamforming. It is shown that the embedded switching technique is efficient when it is combined with the STBC-adaptive beamforming as well as the spatial multiplexing-adaptive beamforming. Besides, it offers an improvement of SNR=8db compared to when it is combined with the ZF-beamforming.","PeriodicalId":133593,"journal":{"name":"2019 International Conference on Signal, Control and Communication (SCC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133723006","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
Analysis of defects created at Si/SiO2 interface in a power RF LDMOS device due to temperature effects 功率RF LDMOS器件中温度效应导致的Si/SiO2界面缺陷分析
2019 International Conference on Signal, Control and Communication (SCC) Pub Date : 2019-12-01 DOI: 10.1109/SCC47175.2019.9116129
M. Belaid, M. Tlig, A. Almusallam
{"title":"Analysis of defects created at Si/SiO2 interface in a power RF LDMOS device due to temperature effects","authors":"M. Belaid, M. Tlig, A. Almusallam","doi":"10.1109/SCC47175.2019.9116129","DOIUrl":"https://doi.org/10.1109/SCC47175.2019.9116129","url":null,"abstract":"Thermal constraints and the variation of high temperature levels are two of the most observed degradation mechanisms in power RF electronic devices. In order to evaluate the degradation level, the main indicator may be the measurement of on-state resistance (R$_{DS-on}$), which is systematically associated with the evolution of the internal device structure. This is a study of temperature effects on I-V characteristics of N-channel power RF LDMOS devices, and especially of RDS-on resistance; which is a main constraint of LDMOS devices in high temperature operations, that can partially or total change the performances of physical and electrical device. R$_{DS-on}$ has strong temperature dependence. The main parameters relevant to the temperature effects of the electrical characterization of the device is reported and proven by the basic physical behavior. The analysis of the experimental results is presented and the physical simulations (2D ATLAS–SILVACO) are used to explain and observe the physical preview of temperature impacts on power RF LDMOS performance. The physical parameters like current lines, concentration, electric field and mobility are taken into consideration follows temperature dependence. Finally, initial impacts analysis is discussed.","PeriodicalId":133593,"journal":{"name":"2019 International Conference on Signal, Control and Communication (SCC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125699774","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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