遥感信息 Pub Date : 2019-12-20 DOI: 10.1109/ICMRSISIIT46373.2020.9405822

Daniel Kuyoli Ngala, K. A. Opare, E. Affum

引用次数: 0

Series Connected Active Multipulse Rectifiers for Harmonics Mitigation 串联有源多脉冲整流器的谐波抑制

遥感信息 Pub Date : 2019-12-20 DOI: 10.1109/ICMRSISIIT46373.2020.9405921

Md. Shoaib Akther, Nishat Lubna, Labiba Tahsin Anika, Most. Miftahul Jannat, Jeba Mubassera

引用次数: 1

Evaluation of Single-Input Single-Output Radial Basis Function Neural Network in Modelling Empirical 4G Traffic 单输入单输出径向基函数神经网络在4G流量建模中的评价

遥感信息 Pub Date : 2019-12-20 DOI: 10.1109/ICMRSISIIT46373.2020.9405936

F. Oduro-Gyimah, K. Boateng

引用次数: 0

Design of An Optimal Low Noise Amplifier (LNA) for Signal Boosting 用于信号增强的最佳低噪声放大器(LNA)的设计

遥感信息 Pub Date : 2019-12-20 DOI: 10.1109/ICMRSISIIT46373.2020.9405953

F. Prikutse, Yaw Twum-Barimah, P. Danquah

{"title":"Design of An Optimal Low Noise Amplifier (LNA) for Signal Boosting","authors":"F. Prikutse, Yaw Twum-Barimah, P. Danquah","doi":"10.1109/ICMRSISIIT46373.2020.9405953","DOIUrl":"https://doi.org/10.1109/ICMRSISIIT46373.2020.9405953","url":null,"abstract":"The purpose of a Low Noise Amplifier (LNA) is to amplify received signals to acceptable levels while minimizing noise. The LNA is used in communication systems to amplify very weak signals captured by an antenna. The design of an LNA in Microwave circuits requires a trade-off or careful balance of many important parameters such as Gain, Noise Figure (NF), and Stability. In view of this, it is essential to make calculated choices to realize an optimally functioning LNA. This paper presents a single stage 2.0 GHz LNA optimal design using lumped elements (discrete passive components) for the input and output matching networks. The Radio Frequency (RF) transistor used for this design is the ATF-21170, which is modelled by its Scattering (S) parameters. This is a high performance, low noise Gallium Arsenide Schottky barrier-gate Field Effect Transistor. The LNA is designed using conventional techniques to boost weak cell signals in the frequency range of 1.8GHz to 2.6GHz. The design is done with the aid of Advanced Design System (ADS) 2020 software. The LNA was successfully designed at an operating frequency of 2.0GHz with a gain of 14dB and a minimum noise figure (NFmin) of 0.83dB.","PeriodicalId":64877,"journal":{"name":"遥感信息","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86850909","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 Hybrid Lightweight Cryptographic Scheme For Securing Node Data Based On The Feistel Cipher And MD5 Hash Algorithm In A Local IoT Network 本地物联网网络中基于Feistel密码和MD5哈希算法的节点数据保护混合轻量级加密方案

遥感信息 Pub Date : 2019-12-20 DOI: 10.1109/ICMRSISIIT46373.2020.9405869

B. Asare, Kester Quist-Aphetsi, Laurent Nana

引用次数: 1

Frequency Splitting Elimination in a multi-coil power transfer system 多线圈电力传输系统的分频消除

遥感信息 Pub Date : 2019-12-20 DOI: 10.1109/ICMRSISIIT46373.2020.9405831

Samuel Afoakwa, Young-Bae Jung

引用次数: 0

A Privacy-preserving Covid-19 Updatable Test Result and Vaccination Provenance based on Blockchain and Smart contract 基于区块链和智能合约的Covid-19可更新测试结果和疫苗来源的隐私保护

遥感信息 Pub Date : 2019-12-20 DOI: 10.1109/ICMRSISIIT46373.2020.9405872

J. Odoom, R. S. Soglo, S. Danso, Hua Xiaofang

{"title":"A Privacy-preserving Covid-19 Updatable Test Result and Vaccination Provenance based on Blockchain and Smart contract","authors":"J. Odoom, R. S. Soglo, S. Danso, Hua Xiaofang","doi":"10.1109/ICMRSISIIT46373.2020.9405872","DOIUrl":"https://doi.org/10.1109/ICMRSISIIT46373.2020.9405872","url":null,"abstract":"It is undisputable fact that Coronavirus pandemic will go into the annals of history as one of the devastating plagues. From the healthcare perspective, a lot of efforts are underway geared towards testing, management and vaccination whereas industry and research communities explore innovative solutions. Quite a number of solutions have emerged zooming in on contact tracing, combating misinformation, data aggregation and analysis as well as test result certification with blockchain technology been the core. Aside the reliance on centralized architectures and use of permissioned/consortium blockchain, conspicuously missing in existing solutions based on blockchain is the work around the immutability feature of the technology given the fact that a person’s test result is not static but dynamic. In this paper, we propose a solution using blockchain and smart contract that allows for state changes to be made by authorized entities. We leverage distributed storage technology using InterPlanetary File System (IPFS) for storage of user encrypted records and subsequent retrieval for verification purposes. We extend our solution by incorporating vaccination status to provide comprehensive source of information and show proof of concept. The full code of our proposed solution is made publicly available on GitHub.","PeriodicalId":64877,"journal":{"name":"遥感信息","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81695189","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: 7

A Symmetric Encription Scheme for Electronic Data Exchange for Edge Medical Devices in a Dew-Fog Computing Environment 露雾计算环境下边缘医疗设备电子数据交换的对称加密方案

遥感信息 Pub Date : 2019-12-20 DOI: 10.1109/ICMRSISIIT46373.2020.9405874

Grace Simpson, Q. Kester, Laurent Nana

引用次数: 0

Luetooth Stereo Audio System with Active Noise Cancelation 具有主动降噪功能的蓝牙立体声音响系统

遥感信息 Pub Date : 2019-12-20 DOI: 10.1109/ICMRSISIIT46373.2020.9405901

U. O. Mabel, O. O. Henry, O. A. Adedayo

{"title":"Luetooth Stereo Audio System with Active Noise Cancelation","authors":"U. O. Mabel, O. O. Henry, O. A. Adedayo","doi":"10.1109/ICMRSISIIT46373.2020.9405901","DOIUrl":"https://doi.org/10.1109/ICMRSISIIT46373.2020.9405901","url":null,"abstract":"although, sound systems are obtainable for outdoor use, battery-powered audio devices are what is mostly found in today’s portable music. Using a class D Audio amplifier, it is possible to couple a Bluetooth device with the amplifier, coming up with a system that can receive and process audio signals through Bluetooth connection. With every communication system, Noise is always considered as unwanted signal. The signal to noise ratio statistical characteristics in practical application can’t be learned or are usually unknown so that we barely design fix coefficient digital filter in insinuation to the noise problem in the Bluetooth stereo audio system.The “on-line” FIR or IIR filter weights of active noise and vibration control systems of an adaptive algorithm used for optimizing is basically derived from adaptive algorithms used in systems such as telescope adaptive optics and telephone echo-cancellers to cancel unwanted” noise “optics and thus develop distant star signals.In this work an adaptive noise cancellation system is designed to minimize the noise in the Bluetooth stereo audio system. Using the least mean square (LMS) algorithm, the coefficient of the filter in the active noise cancellation system is altered in variation to noise signal characteristics, which in turn made the active noise system adaptive.","PeriodicalId":64877,"journal":{"name":"遥感信息","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84194078","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

Effect of COVID-19 on Education in Ghana: Narratives from Primary, Junior High and Senior High School children 2019冠状病毒病对加纳教育的影响:来自小学、初中和高中儿童的叙述

遥感信息 Pub Date : 2019-12-20 DOI: 10.1109/ICMRSISIIT46373.2020.9405905

I. K. Amponsah, Sylvia Ankamah, Helena Amoakohene Anarfi, Carine Lesley Malor

{"title":"Effect of COVID-19 on Education in Ghana: Narratives from Primary, Junior High and Senior High School children","authors":"I. K. Amponsah, Sylvia Ankamah, Helena Amoakohene Anarfi, Carine Lesley Malor","doi":"10.1109/ICMRSISIIT46373.2020.9405905","DOIUrl":"https://doi.org/10.1109/ICMRSISIIT46373.2020.9405905","url":null,"abstract":"Among the pandemics that have affected human existence, the Covid-19 virus with uncertain genesis has deracinated the natural structure and cycle of everything around us. Education and especially children’s social life has been jeopardized forcing us to find new ways of doing things in the quest to survive. This study investigated the effect of covid-19 on education from the perspective of primary and high school children staying at home in Ghana. Due to the pandemic, the descriptive study drew respondents across the country using snowball sampling via the internet (social media, email, WhatsApp, etc). Results lead to major conclusions that children employed both manual and/or online methods of learning at home mostly relying on parents’ electronic gadgets and/or computers. They faced mostly issues of bad internet connectivity and expensive data while learning online. Majority (54.6%) claimed they want to resume school amid the pandemic because they mostly miss their friends and teachers and also sometimes needs help studying at home. The strong minority (45.4%) prefer to stay home for fear of infecting their family members. The study recommends an effective but healthy method of educational continuity (small contact hours and online studies) for our youth in this new normal.","PeriodicalId":64877,"journal":{"name":"遥感信息","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75789201","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

遥感信息最新文献