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2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST)最新文献

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Estimation of Rain Attenuation of Earth-to-Satellite Link over Nepal for Ku & Ka Bands 尼泊尔地面卫星链路Ku和Ka波段降雨衰减的估计
2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST) Pub Date : 2021-08-17 DOI: 10.1109/ICREST.2019.8644484
Jasmul Alam, Md. Sakir Hossain, Jauwad Ansari, A. Z. M. Imran, Imtiaz Kamrul
{"title":"Estimation of Rain Attenuation of Earth-to-Satellite Link over Nepal for Ku & Ka Bands","authors":"Jasmul Alam, Md. Sakir Hossain, Jauwad Ansari, A. Z. M. Imran, Imtiaz Kamrul","doi":"10.1109/ICREST.2019.8644484","DOIUrl":"https://doi.org/10.1109/ICREST.2019.8644484","url":null,"abstract":"Due to the extensive use of lower frequency bands & huge demand of large bandwidth in satellite communications, engineers need to use the higher frequency bands such as Ku to Ka bands. However, the rain attenuation is severe in these bands. Before installing an earth station, the estimation of the rain attenuation is a prerequisite task to know the required fade margin to ensure a certain availability of the network. In this paper, we estimate the rain attenuation for different regions of Nepal. The R-H and ITU models are used for rain rate and rain attenuation estimation, respectively. A significant temporal and spatial variation in rain attenuation is observed. Among three different regions of Nepal, namely Terai, Hilly, and Himalaya, while the maximum rain attenuation is found in Terai region, the minimum is in Himalaya. Jhapa of the Terai region experiences the highest attenuation and requires 80 dB and 24 dB fade margin for Ka and Ku bands, respectively. Solukhumbu of Himalaya region, on the other hand, is found to be the least rain attenuation affected site. The required fade margin for an earth station site in Solukhumbu for using Ku and Ka bands are 12 dB and 40 dB, respectively. The minimum attenuation, which is observed in November and December, is several times lower compared to the highest rain attenuation, observed in July. The minimum attenuation caused by the Ka band is higher than the maximum attenuation caused by the Ku band irrespective of the locations of the earth station sites.","PeriodicalId":108842,"journal":{"name":"2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125445632","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
Trends on Remote Sensing Technology: Receiver Architectures and Antenna Systems 遥感技术的发展趋势:接收机架构和天线系统
2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST) Pub Date : 2019-02-19 DOI: 10.1109/ICREST.2019.8644361
S. Shehab, Jiewei Feng, N. Karmakar
{"title":"Trends on Remote Sensing Technology: Receiver Architectures and Antenna Systems","authors":"S. Shehab, Jiewei Feng, N. Karmakar","doi":"10.1109/ICREST.2019.8644361","DOIUrl":"https://doi.org/10.1109/ICREST.2019.8644361","url":null,"abstract":"This article presents a brief overview of the remote sensing technologies for the detection and measurements of the geophysical parameters. Several radiometer receiver architectures such as total power, Dicke, noise rejection, hybrid and correlation modules have been discussed along with their structural benefits. Additionally, review of the progress on the associated antenna systems have also been presented. The future potential of the Substrate Integrated Waveguide (SIW) technology for the development of the radiometer antenna system over microstrip patch and rectangular waveguide topology in mm-wave is also discussed.","PeriodicalId":108842,"journal":{"name":"2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129597179","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
Prospect of Back Contact for A Highly Efficient InGaN Thin Film Solar Cell from Numerical Analysis 从数值分析看高效InGaN薄膜太阳能电池背接触的前景
2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST) Pub Date : 2019-02-19 DOI: 10.1109/ICREST.2019.8644303
N. Akter, Md. Salim Miah, M. Matin, N. Amin
{"title":"Prospect of Back Contact for A Highly Efficient InGaN Thin Film Solar Cell from Numerical Analysis","authors":"N. Akter, Md. Salim Miah, M. Matin, N. Amin","doi":"10.1109/ICREST.2019.8644303","DOIUrl":"https://doi.org/10.1109/ICREST.2019.8644303","url":null,"abstract":"Nowadays, solar photovoltaic (PV) is the most attractive and sustainable technology to solve the present power crisis. Indium Gallium Nitride (InGaN) is an amazing photovoltaic material that has tunable bandgap ranging from 0.7 eV - 3.4 eV that can cover the total solar spectrum to increase the efficiency abundantly. Recently, InGaN alloy is exhibiting its potential for various optoelectronic and power electronic applications. Such excellent semiconductor alloy from group III-V is motivating enormous research interest to build highly efficient photovoltaic cell. This paper works on the prospect of back contact materials by the performance of InGaN solar cells. The rigorous simulation was conducted with several ratios of In in InGaN with different thickness of P and N layer of the single junction solar cell. Different cell structures were examined through AMPS-1D simulator to discover the stable and efficient InGaN cell. Nine different cell structures were investigated to find the stable and efficient InGaN cell where Ti, Mo, Cu, Ni, Pt, Au, Co, Al, Ag, etc. were used as back contact materials and found a high conversion efficiency of 25.06%. Stability of the cell structure was also investigated that is -0.04/◦C shows the high stability.","PeriodicalId":108842,"journal":{"name":"2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124657636","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 ITO Based High Gain Optically Transparent Wide Band Microstrip Antenna for K Band Satellite Communication 基于ITO的K波段卫星通信高增益光透明宽带微带天线
2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST) Pub Date : 2019-02-19 DOI: 10.1109/ICREST.2019.8644203
L. Paul, Ripon Kumar Pramanik, Md. Mamun ur Rashid, Sohag Sarker, Md. Zulfiker Mahmud, M. Tariqul Islam
{"title":"An ITO Based High Gain Optically Transparent Wide Band Microstrip Antenna for K Band Satellite Communication","authors":"L. Paul, Ripon Kumar Pramanik, Md. Mamun ur Rashid, Sohag Sarker, Md. Zulfiker Mahmud, M. Tariqul Islam","doi":"10.1109/ICREST.2019.8644203","DOIUrl":"https://doi.org/10.1109/ICREST.2019.8644203","url":null,"abstract":"A high gain optically transparent microstrip patch antenna for K band (18 GHz–27 GHz) satellite communication has been proposed and investigated in this paper. In order to make sure the property of optical transparency of the antenna, optically transparent materials have been chosen for all the layers of the microstrip patch antenna. Indium Tin Oxide (ITO) film is opted for the radiating patch and ground plane where the substrate is made of pyrex glass (lossy) (Ɛr = 4.82 and tanδ = 0.0054). The proposed transparent antenna operates at center frequency of 24.8 GHz ranging from 17.625 GHz to 30.523 GHz that covers the entire K band of satellite communication. The transparency property of the patch antenna is useful to minimize the shadowing effect of the solar antenna as well as helpful to guarantee the maximum uses of satellite surface area. The proposed antenna has high IEEE gain of 12.36 dB and directivity of 13.38 dBi including efficiency of 92.38%. It also possesses very wide bandwidth (12.898 GHz), high front to back ratio (16.699 dB) and very good VSWR (1.0566) at center operating frequency.","PeriodicalId":108842,"journal":{"name":"2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125641735","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
Identification of Human Pain Perception using fNIRS 用近红外光谱识别人类痛觉
2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST) Pub Date : 2019-01-01 DOI: 10.1109/ICREST.2019.8644087
Lubna Tabassum Shuvra, Sheikh Md. Rabiul Islam, Nowrin Zaman, M. Hasan
{"title":"Identification of Human Pain Perception using fNIRS","authors":"Lubna Tabassum Shuvra, Sheikh Md. Rabiul Islam, Nowrin Zaman, M. Hasan","doi":"10.1109/ICREST.2019.8644087","DOIUrl":"https://doi.org/10.1109/ICREST.2019.8644087","url":null,"abstract":"Functional near-infrared spectroscopy (fNIRs) is a noninvasive, invivo technique that measure the brain activity through hemodynamic response on cerebral cortex area. fNIR spectral is preferred for their safeties, noiseless acquisition and comparatively cheapness. Human perception or sensation are also a game of concentration changing in brain that can be measured noninvasively by NIR spectroscopy. These signals derive from physical or chemical stimuli can investigate by statistical parametric mapping where the active channels are integrated with that MRI image. The aim of this study is to investigate human brain signal via fNIR and merge it with anatomical brain image via statistical mapping. Establish the relationship between human brain and pain perception as well as find the dominant channel from probable area. Statistical parametric software is utilized here for processing, mapping and estimating NIRS data.","PeriodicalId":108842,"journal":{"name":"2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST)","volume":"395 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122087439","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 Comparative Analysis by KNN, SVM & ELM Classification to Detect Sickle Cell Anemia KNN、SVM和ELM分类检测镰状细胞性贫血的比较分析
2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST) Pub Date : 2019-01-01 DOI: 10.1109/ICREST.2019.8644410
Tajkia Saima Chy, Mohammad Anisur Rahaman
{"title":"A Comparative Analysis by KNN, SVM & ELM Classification to Detect Sickle Cell Anemia","authors":"Tajkia Saima Chy, Mohammad Anisur Rahaman","doi":"10.1109/ICREST.2019.8644410","DOIUrl":"https://doi.org/10.1109/ICREST.2019.8644410","url":null,"abstract":"Red blood cell abnormalities involve erythrocytes that supply oxygen to all body tissues. Sometimes the formation and role of erythrocytes are hindered. Sickle cell anemia (SCA) is one kind of red blood cell disease. People carrying sickle cell anemia are increasing day by day. Sickle cell anemia shortens life expectancy. But life expectancy can be extended by diagnosing it an early stage. To identify the existence of sickle cells, an image processing procedure is developed. Blood samples are collected in the form of image format. The conversion of gray image, noise filtering and enhancement of image is done in image pre-processing. Fuzzy C means clustering is applied to determine the normal and sickle cells. Morphological operations are also applied to images. The geometrical and statistical features are used for extraction. Lastly, k nearest neighbor (knn), support vector machine (svm) & extreme learning machine (elm) classifiers are implemented to test images. Comparisons among the classifiers with reliable results are presented by this system.","PeriodicalId":108842,"journal":{"name":"2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117108036","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: 23
Hazard Reconnaissance Rover Using Raspberry Pi and Multiple Sensors 使用树莓派和多个传感器的危险侦察漫游者
2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST) Pub Date : 2019-01-01 DOI: 10.1109/ICREST.2019.8644260
Md. Razaul Haque Usmani, Lafiz Maruf Rahman, Salsabil Ahmed, I. Chowdhury, J. Uddin
{"title":"Hazard Reconnaissance Rover Using Raspberry Pi and Multiple Sensors","authors":"Md. Razaul Haque Usmani, Lafiz Maruf Rahman, Salsabil Ahmed, I. Chowdhury, J. Uddin","doi":"10.1109/ICREST.2019.8644260","DOIUrl":"https://doi.org/10.1109/ICREST.2019.8644260","url":null,"abstract":"This paper presents a model of a rover which enhances the human reach during catastrophic situations. To implement the proposed model as a hardware tool, we utilize a four-wheeled rover powered by Raspberry Pi with a compact body, where multiple sensors like temperature, humidity and gas detector sensors along with a night vision camera module are integrated. The experimental results demonstrate that the proposed rover is able to traverse and survey in the areas where human reach seems unlikely, especially in hazardous situations.","PeriodicalId":108842,"journal":{"name":"2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129266502","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
VibNet: Application of Wireless Sensor Network for Vibration Monitoring Using ARM VibNet:无线传感器网络在ARM振动监测中的应用
2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST) Pub Date : 2019-01-01 DOI: 10.1109/ICREST.2019.8644495
N. I. Hossain, Sakib Reza, M. Ali
{"title":"VibNet: Application of Wireless Sensor Network for Vibration Monitoring Using ARM","authors":"N. I. Hossain, Sakib Reza, M. Ali","doi":"10.1109/ICREST.2019.8644495","DOIUrl":"https://doi.org/10.1109/ICREST.2019.8644495","url":null,"abstract":"Vibration in electrical and mechanical systems is an important parameter which is related to the systems health, stability and efficiency. In practical condition, the system is distributed and most of the time unreachable during their operating time. In this paper, triple axis wireless vibration monitoring system for distributed system is described. The system also includes development of real time graphical user interface with MATLAB. Here triple axis accelerometer ADXL335 is used for acceleration measurement , cost effective ARM M4 processor TM4C123GXL is used as processing unit and low power Zigbee transceiver is used to transfer the vibration data. To prevent data tapping, the data is encrypted by Advanced Encryption Standard (AES) algorithm in sending side and then decrypted in receiver end. The overall latency of the system is also measured. The received signal strength based performance analysis is also done where the RSSI value is approximately -43dBm at 587.94m distance. The system is tested for vibration measurement of a single phase induction motor.","PeriodicalId":108842,"journal":{"name":"2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123218008","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: 8
Bio-implantable Antenna at Human Head Model 生物植入人体头部天线模型
2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST) Pub Date : 2019-01-01 DOI: 10.1109/ICREST.2019.8644333
Md.Nizam Uddin, Raja Rashidul Hasan, M. Rahman, Shantanu Kumar Nath, Palash Sarkar
{"title":"Bio-implantable Antenna at Human Head Model","authors":"Md.Nizam Uddin, Raja Rashidul Hasan, M. Rahman, Shantanu Kumar Nath, Palash Sarkar","doi":"10.1109/ICREST.2019.8644333","DOIUrl":"https://doi.org/10.1109/ICREST.2019.8644333","url":null,"abstract":"This paper represents a design and miniaturization of a patch antenna which operates in the MICS band (402-406MHz) for bio-medical applications and is implantable in human scalp. The motive for designing this antenna is to work inside human tissue and can transfer data from a patient to another device. In this design, Copper is chosen for both ground and patch. ISOLA FR-408(LOSSY) is chosen as its dielectric substrate for its flexibility. Before implantation inside the head phantom silicon is used for warping the antenna. For designing, CST Microwave Studio is used for creating human head phantom. After implanting the antenna inside the human head model the S11 is observed −20.801101dB and VSWR is found to be 1.2006789. SAR is also found 0.6968 W/Kg which is ensuring the safety on Human body. Far-fields radiation pattern, total efficiency and total radiation efficiency are calculated to ensure the suitability of antenna implantation.","PeriodicalId":108842,"journal":{"name":"2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121670172","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
ICREST 2019 List Reviewer Page ICREST 2019列表审核页面
2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST) Pub Date : 2019-01-01 DOI: 10.1109/icrest.2019.8644195
{"title":"ICREST 2019 List Reviewer Page","authors":"","doi":"10.1109/icrest.2019.8644195","DOIUrl":"https://doi.org/10.1109/icrest.2019.8644195","url":null,"abstract":"","PeriodicalId":108842,"journal":{"name":"2019 International Conference on Robotics,Electrical and Signal Processing Techniques (ICREST)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124517177","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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