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2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT)最新文献

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A Nonlinear Regression-Based Approach for Estimating the Relaxation Parameters of GPR Traces 一种基于非线性回归的探地雷达路径松弛参数估计方法
2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT) Pub Date : 2021-12-06 DOI: 10.1109/ISAECT53699.2021.9668534
Saeed Aljabri, Mohamed Deriche
{"title":"A Nonlinear Regression-Based Approach for Estimating the Relaxation Parameters of GPR Traces","authors":"Saeed Aljabri, Mohamed Deriche","doi":"10.1109/ISAECT53699.2021.9668534","DOIUrl":"https://doi.org/10.1109/ISAECT53699.2021.9668534","url":null,"abstract":"Ground Penetrating Radar (GPR) techniques have been used extensively over the last decades in mapping underground objects by recording signal reflections due to the variations of objects' dielectric properties. Such an approach can be generalized to cover properties' analysis of the sub surface's materials. This is achieved by estimating the relaxation time (frequency) of the dielectric permittivity spectrum. By doing this, valuable information is obtained including, but not limited to, identifying moisture content of underground soil, water and clay content, rock classification, material ageing, etc. Several techniques have been proposed for estimating the relaxation time (frequency) under the ill-posedness condition. Existing techniques suffer from drawbacks including computation complexity and dependency on regularization functions that affect estimation accuracy. Non-linear regression technique have shown improvement in performance even the presence of noisy data. This paper proposes a new formulation using the Steepest Descent method. The simulation results showed that the proposed step size speeds the algorithm convergence in comparison to constant step size algorithm.","PeriodicalId":137636,"journal":{"name":"2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127119552","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
Demystifying LoRa Wireless Technology for IoT Applications: Concept to Experiment 揭开物联网应用LoRa无线技术的神秘面纱:从概念到实验
2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT) Pub Date : 2021-12-06 DOI: 10.1109/ISAECT53699.2021.9668500
G. Reddy, Y. V. Pavan Kumar
{"title":"Demystifying LoRa Wireless Technology for IoT Applications: Concept to Experiment","authors":"G. Reddy, Y. V. Pavan Kumar","doi":"10.1109/ISAECT53699.2021.9668500","DOIUrl":"https://doi.org/10.1109/ISAECT53699.2021.9668500","url":null,"abstract":"In the present-day scenario, the advancement in wireless technologies is having two extremities, i.e., on one hand, high data rate and on the other hand low data rates. In this view, this paper aims to study one of the recent technologies called LoRa (Long Range), which works with low data rates, long-range and proposes interesting solutions to problems in IoT (Internet of Things) applications. Besides, this works at low power, where, data from various sensors can be collected from remote locations (typically battery operated). LoRaWAN is an open standard developed by LoRa Alliance, which is creating awareness on various use cases, also offering device certification programs. The protocol specifications of LoRaWAN are provided by LoRa Alliance with the help of a regional parameter document. With this motivation, this paper discusses an overview of LoRa and LoRaWAN. Also, various device types, chips used, several advantages, limitations, and potential applications are mentioned.","PeriodicalId":137636,"journal":{"name":"2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126633842","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
SiC MOSFET Avalanche Breakdown Voltage Model for Temperature and Gate Voltage Dependence 温度与栅极电压依赖的SiC MOSFET雪崩击穿电压模型
2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT) Pub Date : 2021-12-06 DOI: 10.1109/ISAECT53699.2021.9668386
A. Llamazares, M. García-Gracia, S. Martín-Arroyo, J. A. Cebollero
{"title":"SiC MOSFET Avalanche Breakdown Voltage Model for Temperature and Gate Voltage Dependence","authors":"A. Llamazares, M. García-Gracia, S. Martín-Arroyo, J. A. Cebollero","doi":"10.1109/ISAECT53699.2021.9668386","DOIUrl":"https://doi.org/10.1109/ISAECT53699.2021.9668386","url":null,"abstract":"This paper proposes a model for describing the avalanche breakdown voltage (BVDS). The model takes into account the gate-source voltage (VGS) dependence and the temperature (T) dependence. Both dependencies are due to different phenomena, therefore the product of two quadratic functions of independent variables (VGS and T) is considered to characterize BVDS. The coefficients of these functions are identified by nonlinear least-squares. A 650 V SiC MOSFET is characterized with the proposed technique. Results show a good agreement between experimental and predicted values.","PeriodicalId":137636,"journal":{"name":"2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116650222","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
Stretchable Wearable Crowd Monitoring System 可伸缩可穿戴人群监控系统
2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT) Pub Date : 2021-12-06 DOI: 10.1109/ISAECT53699.2021.9668441
J. P. Rojas, A. Hussein, H. Alzaher, M. Mohandes
{"title":"Stretchable Wearable Crowd Monitoring System","authors":"J. P. Rojas, A. Hussein, H. Alzaher, M. Mohandes","doi":"10.1109/ISAECT53699.2021.9668441","DOIUrl":"https://doi.org/10.1109/ISAECT53699.2021.9668441","url":null,"abstract":"In massive events, minor incidents can cause big tragedies. Therefore, the development of crowd monitoring technologies for risk mitigation has become of great relevance. Thus, we have developed and verified a novel wearable crowd monitoring system that includes processing, communication, and vital signs sensing capabilities (temperature, skin hydration, and heart rate). A novel stretchable Printed Circuit Board (PCB) was developed to achieve high stretchability and wearability. Moreover, the collected data from individuals in a crowd may be further analyzed to detect potential crises and prevent tragedies. Finally, the performance of the developed system was verified in real-life experiments in Makkah city.","PeriodicalId":137636,"journal":{"name":"2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124040558","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
An Overview and Practical Considerations of Common Lithium-ion Battery Cell Models 常用锂离子电池模型综述及实际考虑
2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT) Pub Date : 2021-12-06 DOI: 10.1109/ISAECT53699.2021.9668417
A. Hussein
{"title":"An Overview and Practical Considerations of Common Lithium-ion Battery Cell Models","authors":"A. Hussein","doi":"10.1109/ISAECT53699.2021.9668417","DOIUrl":"https://doi.org/10.1109/ISAECT53699.2021.9668417","url":null,"abstract":"Lithium-ion (Li-ion) batteries are widely used in numerous applications due to their high energy density and long lifespan. These batteries require effective techniques to manage their operation in order to optimize their performance and prolong their life. However, with no solid understanding of the battery dynamics, the design of the battery management system (BMS) cannot be optimized. Furthermore, improperly charging or discharging these batteries will ultimately reduce their cycle-life and may result in a fire hazard. This paper presents an overview of common Li-ion battery cell models that allow understanding the typical dynamics of these batteries followed by some practical considerations.","PeriodicalId":137636,"journal":{"name":"2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123169864","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
Integration of a non-3GPP satellite interface in a 5G multiple access configuration 在5G多址配置中集成非3gpp卫星接口
2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT) Pub Date : 2021-12-06 DOI: 10.1109/ISAECT53699.2021.9668502
C. Roseti
{"title":"Integration of a non-3GPP satellite interface in a 5G multiple access configuration","authors":"C. Roseti","doi":"10.1109/ISAECT53699.2021.9668502","DOIUrl":"https://doi.org/10.1109/ISAECT53699.2021.9668502","url":null,"abstract":"The 3rd Generation Partnership Project (3GPP) release 15 extended the 5G access to the WiFi enabling a higher number of communication scenarios and then fostering the penetration of 5G services in a short-term scale. Together with the opportunity to connect 5G Core Network (CN) with a legacy wireless technology, the non-3GPP access paved the way for the implementation of multiple access interfaces to improve on performance of user data transfers through techniques of Access Traffic Steering, Switching and Splitting (ATSSS). Thus, it is worth to analyze the resulting access configurations lying on either “untrusted” and “trusted” scenario to catch potentiality in the definition of brand-new services. While the current specifications address terrestrial-only technologies as non-3GPP interfaces, this paper presents the baseline for a study, funded by a European Space Agency and called INN3SCO, intended to enable a non-3GPP satellite interface and to realize a hybrid terrestrial satellite 5G access.","PeriodicalId":137636,"journal":{"name":"2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114418064","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
Concatenated Image Compression and Encryption 连接图像压缩和加密
2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT) Pub Date : 2021-12-06 DOI: 10.1109/ISAECT53699.2021.9668403
Abdulaziz Alshaya, S. Komies
{"title":"Concatenated Image Compression and Encryption","authors":"Abdulaziz Alshaya, S. Komies","doi":"10.1109/ISAECT53699.2021.9668403","DOIUrl":"https://doi.org/10.1109/ISAECT53699.2021.9668403","url":null,"abstract":"In recent years, there have been increasing demands for applications of image storage, sharing and transmission across data networks. For these data-intensive and sensitive applications, it is imperative to perform both image compression and encryption. In this paper, two different approaches of image compression and encryption were studied and compared. In the first approach, image compression was followed by encryption; while, in the second approach, image encryption was followed by compression. Both approaches were implemented based on standard schemes, i.e., JPEG 2000 lossless compression and DES encryption. Experiments were conducted for two different types of testing images: a natural image and a medical image. The efficiency performance of the two approaches was compared based on key parameters such as MSE, PSNR, entropy, image file size, compression ratio and time consumption. We found that the first approach outperformed the second for both testing images. The results are presented and analysed along with recommendations for related future work.","PeriodicalId":137636,"journal":{"name":"2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130518983","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
Study of Microstrip Multiplexers for Satellite Communication Systems 卫星通信系统中微带复用器的研究
2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT) Pub Date : 2021-12-06 DOI: 10.1109/ISAECT53699.2021.9668506
S. Komies, Abdulaziz Alshaya, Khaled Aliqab
{"title":"Study of Microstrip Multiplexers for Satellite Communication Systems","authors":"S. Komies, Abdulaziz Alshaya, Khaled Aliqab","doi":"10.1109/ISAECT53699.2021.9668506","DOIUrl":"https://doi.org/10.1109/ISAECT53699.2021.9668506","url":null,"abstract":"Satellite communication is witnessing major developments in size and mass. In each satellite's payload, there are several multiplexers and filters that are used to define frequency, which combine and separate channels and prevent channel interference. This paper investigates different topologies of multiplexers based on microstrip bandpass filters. A four-channel multiplexer, composed of coupled lines microstrip bandpass filters was designed and simulated. The four-channel-multiplexer consists of one feeding line input and four output lines. Each channel filter used two resonators that perform at different frequency ranges. The resonators were located precisely to achieve good isolation between channels. A small number of resonators was used, which resulted in a small circuit size. This multiplexer design shows high flexibility in the passband frequencies because each pair of resonators was used for a specific frequency and the effect of loading between channels was relatively small with a circuit size of 2.1 cm × 2.1cm and over 40 dB isolation.","PeriodicalId":137636,"journal":{"name":"2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125579223","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
Developing an Indoor Location Guidance System for a College Campus Environment 面向高校校园环境的室内定位引导系统的开发
2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT) Pub Date : 2021-12-06 DOI: 10.1109/ISAECT53699.2021.9668576
T. Alkhamis, Patricia Marybelle Davies, Saifullah Shafiq, Ahmed A. Hussain
{"title":"Developing an Indoor Location Guidance System for a College Campus Environment","authors":"T. Alkhamis, Patricia Marybelle Davies, Saifullah Shafiq, Ahmed A. Hussain","doi":"10.1109/ISAECT53699.2021.9668576","DOIUrl":"https://doi.org/10.1109/ISAECT53699.2021.9668576","url":null,"abstract":"Automation and digital technologies are revolutionizing how we live, and smart systems are increasingly becoming viable alternatives to indoor guidance and navigation. This paper discusses the development of an autonomous indoor location guidance system designed to guide visitors with navigating a college campus department. Advanced programming features and electronic tools aligned with the 4th industrial revolution are integrated to create a wireless, motor-driver circuit, which acts as a guidance system. Using motion graphics technology it displays a guidance visualization navigation running on embedded systems-including a Raspberry Pi. Users interact with the system by accessing an interface through a capacitive screen. This prototype demonstrated the potential of indoor guidance as essential and efficient, with some commercial prospects.","PeriodicalId":137636,"journal":{"name":"2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116703102","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
Mitigation Techniques for Non-Compliance Challenges of a Grid-Connected Photovoltaic Plant 并网光伏电站不合规挑战的缓解技术
2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT) Pub Date : 2021-12-06 DOI: 10.1109/ISAECT53699.2021.9668415
T. J. Duvenhage, K. Abo-Al-Ez
{"title":"Mitigation Techniques for Non-Compliance Challenges of a Grid-Connected Photovoltaic Plant","authors":"T. J. Duvenhage, K. Abo-Al-Ez","doi":"10.1109/ISAECT53699.2021.9668415","DOIUrl":"https://doi.org/10.1109/ISAECT53699.2021.9668415","url":null,"abstract":"This paper presents information regarding the requirements for connecting a solar photovoltaic plant (SPP) to the South African (SA) utility grid according to the South African renewable energy grid code (SAREGC). A network model will be presented in DIgSILENT PowerFactory, which includes the utility grid and the connection of a grid-connected SPP. An objective will be to confirm the performance parameters of an inverter model within a designed network for possible non-compliance factors of a Category B SPP that may arise during grid code compliance (GCC) simulations in a steady-state environment. The mitigation techniques that will be implemented could provide insight to independent power producers (IPPs) to overcome any non-compliance challenges. These non-compliances may be detected from steady-state power system analysis studies performed for reactive power capability, voltage capability requirements or power quality, which might affect the normal operating conditions of the utility grid.","PeriodicalId":137636,"journal":{"name":"2021 4th International Symposium on Advanced Electrical and Communication Technologies (ISAECT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116112351","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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