Pub Date : 2020-11-18DOI: 10.1109/ICRAMET51080.2020.9298645
I. H. Shahrezaei, Hyun‐cheol Kim
The adverse effects analysis of high-frequency embedded speckle under implementation of spatial de-speckling filters on a reference SAR image is investigated in this paper. The investigation including the speckle probability distribution function (PDF) formulation and the power spectral density (PSD) function modeling as well as quality metrics evaluations. As a novel approach, an objective de-speckling filter classification has been proposed to further categorize the speckle suppression on the basis of their performance. The proposed evaluation method as well as the filter categorization are completely helpful for radar remote sensing and data preservation while dealing with low-resolution image restoration and spatial de-speckling filter application. The spatial resolution simulations are carried out with the help of a hybrid-domain processing algorithm.
{"title":"A Novel Complex SAR Spatial De-Speckling Filter Evaluation Based On Time-Frequency Domain Formulation Of Texture Information","authors":"I. H. Shahrezaei, Hyun‐cheol Kim","doi":"10.1109/ICRAMET51080.2020.9298645","DOIUrl":"https://doi.org/10.1109/ICRAMET51080.2020.9298645","url":null,"abstract":"The adverse effects analysis of high-frequency embedded speckle under implementation of spatial de-speckling filters on a reference SAR image is investigated in this paper. The investigation including the speckle probability distribution function (PDF) formulation and the power spectral density (PSD) function modeling as well as quality metrics evaluations. As a novel approach, an objective de-speckling filter classification has been proposed to further categorize the speckle suppression on the basis of their performance. The proposed evaluation method as well as the filter categorization are completely helpful for radar remote sensing and data preservation while dealing with low-resolution image restoration and spatial de-speckling filter application. The spatial resolution simulations are carried out with the help of a hybrid-domain processing algorithm.","PeriodicalId":228482,"journal":{"name":"2020 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125368842","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}
Pub Date : 2020-11-18DOI: 10.1109/ICRAMET51080.2020.9298683
Erry Dwi Kurniawan, Yan-Ting Du, Yung-Chun Wu
We study the performance of vertically stacked InGaAs/InAlAs/InP Double Quantum Well (DQW) Fin Field Effect Transistor (FinFET) on Si substrate using threedimensional Technology Computer-Aided Design (TCAD) simulation. In0.53Ga0.47As and In0.52Al0.48As are used as the quantum well channel and the barrier material, respectively. Both materials are lattice matched to the InP buffer layer material on Si substrate. The device is simulated with gate lengths (LG) of 15 nm and gate stack (Al2O3/HfO2) of 1nm/2nm (EOT~0.75nm). The simulation results reveal that by using double channel quantum well (super lattice structure) can enhance the saturation current up to 24% compared to Single Quantum Well (SQW) device. The maximum capacitance of the DQW also outperforms the SQW FinFET approximately 34%. The higher capacitance indicates the higher carrier density. The electron density of DQW prefers to localize in the InGaAs layer as the quantum well channel, thus allow greater control over the electron behavior. The device characteristics indicate that the DQW FinFET on Si substrate can be alternated to enhance the device performance for prospective high performance logic device applications.
{"title":"Performance Evaluation of Vertically Stacked Nanosheet InGaAs/InAlAs/InP Double Quantum Well FinFET on Si Substrate","authors":"Erry Dwi Kurniawan, Yan-Ting Du, Yung-Chun Wu","doi":"10.1109/ICRAMET51080.2020.9298683","DOIUrl":"https://doi.org/10.1109/ICRAMET51080.2020.9298683","url":null,"abstract":"We study the performance of vertically stacked InGaAs/InAlAs/InP Double Quantum Well (DQW) Fin Field Effect Transistor (FinFET) on Si substrate using threedimensional Technology Computer-Aided Design (TCAD) simulation. In0.53Ga0.47As and In0.52Al0.48As are used as the quantum well channel and the barrier material, respectively. Both materials are lattice matched to the InP buffer layer material on Si substrate. The device is simulated with gate lengths (LG) of 15 nm and gate stack (Al2O3/HfO2) of 1nm/2nm (EOT~0.75nm). The simulation results reveal that by using double channel quantum well (super lattice structure) can enhance the saturation current up to 24% compared to Single Quantum Well (SQW) device. The maximum capacitance of the DQW also outperforms the SQW FinFET approximately 34%. The higher capacitance indicates the higher carrier density. The electron density of DQW prefers to localize in the InGaAs layer as the quantum well channel, thus allow greater control over the electron behavior. The device characteristics indicate that the DQW FinFET on Si substrate can be alternated to enhance the device performance for prospective high performance logic device applications.","PeriodicalId":228482,"journal":{"name":"2020 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122991301","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}
Pub Date : 2020-11-18DOI: 10.1109/ICRAMET51080.2020.9298660
Sahid Ridho, C. Apriono, Fitri Yuli Zulkifli, E. Tjipto Rahardjo
The development of information and communication technology is a challenge to provide good communication in archipelago countries such as Indonesia. VSAT Ku-Band is one of the technologies that have a smaller size, and affordable price compared to the C-Band VSAT with a smaller receiver power and larger capacity. Ku-Band VSAT has a weakness where it is very vulnerable to weather disturbances, especially rain and weak signals in a boundary area. Therefore, a higher antenna gain is required in this research. To achieve high gain, we propose a corrugated horn antenna with combination of a wire medium placed inside the antenna as a parabolic feeder at Ku-Band channels for VSAT application. We use CST Microwave Studio to simulate and optimize the proposed design. The proposed corrugated horn antenna shows bandwidth of 10.3 GHz to 15 GHz, gain of 18.6 dB at transmitter frequency of 14 GHz and gain of 18.5 dB at receiver frequency 12.75. Furthermore, the feeder horn antenna is combined with a parabolic reflector, this design combination has achieved working frequency 10.7-14.5 GHz with linear polarization, gain at receiver and transmitter working frequency are 38 dBi and 42 dBi, respectively.
{"title":"Design of Corrugated Horn Antenna with Wire Medium Addition as Parabolic Feeder for Ku-Band Very Small Aperture Terminal (VSAT) Application","authors":"Sahid Ridho, C. Apriono, Fitri Yuli Zulkifli, E. Tjipto Rahardjo","doi":"10.1109/ICRAMET51080.2020.9298660","DOIUrl":"https://doi.org/10.1109/ICRAMET51080.2020.9298660","url":null,"abstract":"The development of information and communication technology is a challenge to provide good communication in archipelago countries such as Indonesia. VSAT Ku-Band is one of the technologies that have a smaller size, and affordable price compared to the C-Band VSAT with a smaller receiver power and larger capacity. Ku-Band VSAT has a weakness where it is very vulnerable to weather disturbances, especially rain and weak signals in a boundary area. Therefore, a higher antenna gain is required in this research. To achieve high gain, we propose a corrugated horn antenna with combination of a wire medium placed inside the antenna as a parabolic feeder at Ku-Band channels for VSAT application. We use CST Microwave Studio to simulate and optimize the proposed design. The proposed corrugated horn antenna shows bandwidth of 10.3 GHz to 15 GHz, gain of 18.6 dB at transmitter frequency of 14 GHz and gain of 18.5 dB at receiver frequency 12.75. Furthermore, the feeder horn antenna is combined with a parabolic reflector, this design combination has achieved working frequency 10.7-14.5 GHz with linear polarization, gain at receiver and transmitter working frequency are 38 dBi and 42 dBi, respectively.","PeriodicalId":228482,"journal":{"name":"2020 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124780162","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}
Pub Date : 2020-11-18DOI: 10.1109/ICRAMET51080.2020.9298573
Zaenal Akbar, Y. Kartika, Dadan Ridwan Saleh, Hani Febri Mustika, L. Manik
In the last decade, our capability to collect data has been improved significantly. A new era of big data has emerged as indicated by five characteristics of data: volume, variety, veracity, velocity, and value. The adoption of open-science approach is important in order to manage and exploit the available data appropriately. An open science approach enables curation, discovery, linking, and reusability of data across the globe. The challenge lies in the data heterogeneity, limitation of data interface, and conventional data visualization practices. In this work, we introduce a solution to overcome the challenges by using the Linked Data approach. The solution enables data to be represented in a machine-readable format and linked to or from external data sets, in a way that can be easily integrated, allow search optimization, as well as open the possibility to obtain new knowledge. Our solution consists of a schema construction to uniformly represent biodiversity data (mostly biological specimen data). After that, mapping rules were defined to align data from multiple biodiversity information systems that are available on the Web to the constructed schema. Finally, an engine will consume the mapping rules and generate linked data in a common format. Our results indicate that despite multiple data structures have been utilized by multiple systems, the mapping rules provide flexibility to accommodate every one of them. Further, we successfully demonstrated the possibility to deliver linked biodiversity data across multiple sources as our first step to harness big data biodiversity.
{"title":"On Using Declarative Generation Rules To Deliver Linked Biodiversity Data","authors":"Zaenal Akbar, Y. Kartika, Dadan Ridwan Saleh, Hani Febri Mustika, L. Manik","doi":"10.1109/ICRAMET51080.2020.9298573","DOIUrl":"https://doi.org/10.1109/ICRAMET51080.2020.9298573","url":null,"abstract":"In the last decade, our capability to collect data has been improved significantly. A new era of big data has emerged as indicated by five characteristics of data: volume, variety, veracity, velocity, and value. The adoption of open-science approach is important in order to manage and exploit the available data appropriately. An open science approach enables curation, discovery, linking, and reusability of data across the globe. The challenge lies in the data heterogeneity, limitation of data interface, and conventional data visualization practices. In this work, we introduce a solution to overcome the challenges by using the Linked Data approach. The solution enables data to be represented in a machine-readable format and linked to or from external data sets, in a way that can be easily integrated, allow search optimization, as well as open the possibility to obtain new knowledge. Our solution consists of a schema construction to uniformly represent biodiversity data (mostly biological specimen data). After that, mapping rules were defined to align data from multiple biodiversity information systems that are available on the Web to the constructed schema. Finally, an engine will consume the mapping rules and generate linked data in a common format. Our results indicate that despite multiple data structures have been utilized by multiple systems, the mapping rules provide flexibility to accommodate every one of them. Further, we successfully demonstrated the possibility to deliver linked biodiversity data across multiple sources as our first step to harness big data biodiversity.","PeriodicalId":228482,"journal":{"name":"2020 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116316061","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}
Pub Date : 2020-11-18DOI: 10.1109/ICRAMET51080.2020.9298664
F. Kurniawan, Sunar, Agus Wiyono, Dewi Anggraeni, Jefri Abner Hamonangan, Y. Prabowo, I. Y. Putro, Y. Firmansyah
This manuscript presented, C-band circularly polarized antenna generated by Elliptical shape. The antenna design will be implementing for the SAR sensor system. This shingle microstrip antenna has the main resonant frequency at 5.5GHz. The proposed antenna will be work at the bandwidth 5.4GHz to 5.6GHz. Furthermore, to enhance the bandwidth of the axial ratio a pair of rectangular truncation shapes is implemented. The antenna proposed for the SAR system on a Medium Altitude Long Endurance (MALE) UAV platform. The platform has an altitude of 7200m. Its minimum requirement of gain is 5dBiC. The simulation result shown that its axial ratio obtains 220MHz. The gain at the center frequency reached 6dBiC.
{"title":"A C-band Circular Polarized Antenna with Elliptical Shape for SAR Sensor","authors":"F. Kurniawan, Sunar, Agus Wiyono, Dewi Anggraeni, Jefri Abner Hamonangan, Y. Prabowo, I. Y. Putro, Y. Firmansyah","doi":"10.1109/ICRAMET51080.2020.9298664","DOIUrl":"https://doi.org/10.1109/ICRAMET51080.2020.9298664","url":null,"abstract":"This manuscript presented, C-band circularly polarized antenna generated by Elliptical shape. The antenna design will be implementing for the SAR sensor system. This shingle microstrip antenna has the main resonant frequency at 5.5GHz. The proposed antenna will be work at the bandwidth 5.4GHz to 5.6GHz. Furthermore, to enhance the bandwidth of the axial ratio a pair of rectangular truncation shapes is implemented. The antenna proposed for the SAR system on a Medium Altitude Long Endurance (MALE) UAV platform. The platform has an altitude of 7200m. Its minimum requirement of gain is 5dBiC. The simulation result shown that its axial ratio obtains 220MHz. The gain at the center frequency reached 6dBiC.","PeriodicalId":228482,"journal":{"name":"2020 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116339260","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}
Pub Date : 2020-11-18DOI: 10.1109/ICRAMET51080.2020.9298668
A. Khalil, W. Suparta, E. Abdurachman, A. Trisetyarso
In this day and age, more than 318.000 mobile health apps are available in the market. By 2018, there were over 40% customers use their mobile phone to manage their health. But, approximately 36% mHealth applications were uninstalled within 30 days of download. The impact of uninstalled app is quite substantial both from service providers and users. Therefore, this research aims to create a theoretical model to identify what factors affecting continuance usage intention of mHealth apps. The Information System Continuance Model is used as the basis to construct the theoretical model for this research. Data was statistically analyzed by Partial Least Square-SEM (PLS-SEM). Data collection was conducted by distributing online survey to 93 active users of mHealth application in Indonesia. Our study found factors that affecting continuance usage intention of mHealth are perceived usefulness and perceived fee.
{"title":"Theoretical Model for Continuance Usage Intention of mHealth Application","authors":"A. Khalil, W. Suparta, E. Abdurachman, A. Trisetyarso","doi":"10.1109/ICRAMET51080.2020.9298668","DOIUrl":"https://doi.org/10.1109/ICRAMET51080.2020.9298668","url":null,"abstract":"In this day and age, more than 318.000 mobile health apps are available in the market. By 2018, there were over 40% customers use their mobile phone to manage their health. But, approximately 36% mHealth applications were uninstalled within 30 days of download. The impact of uninstalled app is quite substantial both from service providers and users. Therefore, this research aims to create a theoretical model to identify what factors affecting continuance usage intention of mHealth apps. The Information System Continuance Model is used as the basis to construct the theoretical model for this research. Data was statistically analyzed by Partial Least Square-SEM (PLS-SEM). Data collection was conducted by distributing online survey to 93 active users of mHealth application in Indonesia. Our study found factors that affecting continuance usage intention of mHealth are perceived usefulness and perceived fee.","PeriodicalId":228482,"journal":{"name":"2020 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116513098","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}
Pub Date : 2020-11-18DOI: 10.1109/ICRAMET51080.2020.9298608
S. Phaiboon, P. Phokharatkul
This paper presents path loss prediction for 5G millimeter wave (mmWave) using grey model. The grey system theory is a computational method and used for an empirical model. The proposed model consists of a distance variable input and a path loss variable output. The path loss model was trained with measured path loss data at frequencies of 28 GHz. The proposed model is compared with four 5G empirical models, namely 5GCM, 3GPP, METIS and mmMAGIC. The results show that the single proposed model provide the prediction both LOS and NLOS with minimum MAE.
{"title":"mmWave Path loss Prediction Model Using Grey System Theory for Urban Areas","authors":"S. Phaiboon, P. Phokharatkul","doi":"10.1109/ICRAMET51080.2020.9298608","DOIUrl":"https://doi.org/10.1109/ICRAMET51080.2020.9298608","url":null,"abstract":"This paper presents path loss prediction for 5G millimeter wave (mmWave) using grey model. The grey system theory is a computational method and used for an empirical model. The proposed model consists of a distance variable input and a path loss variable output. The path loss model was trained with measured path loss data at frequencies of 28 GHz. The proposed model is compared with four 5G empirical models, namely 5GCM, 3GPP, METIS and mmMAGIC. The results show that the single proposed model provide the prediction both LOS and NLOS with minimum MAE.","PeriodicalId":228482,"journal":{"name":"2020 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"176 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134143622","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}
Pub Date : 2020-11-18DOI: 10.1109/ICRAMET51080.2020.9298688
Mosab M. Qwakneh, Khaled A. AlHammami, A. Omar, Yanal S. Faouri
A slot antenna has been designed and optimized to obtain frequency reconfigurability over a wide range of frequencies. The proposed antenna has a rectangular slot with a hexagonal slot being placed in the inner conducting element. The antenna is fed through a 50Ω microstrip feed line placed on the other side of the substrate. The resonant frequency is controlled by changing the capacitance value of the varactor diode place between the two conducting elements providing a various range of resonance frequencies, frequency bands, and different bandwidths. The suggested slot antenna is simulated using the Ansys Electronics Desktop simulator (HFSS). The reflection coefficient shows the quad frequency bands cover (2.31 − 2.5), (2.9 − 3.27), (4.28 − 5.23), and (5.4 − 5.74) GHz. Other antenna parameters have been monitored to verify its performance such as gain, radiation efficiency, input impedance, and radiation patterns.
{"title":"Slot Antenna for Multi-Band Frequency Diversity","authors":"Mosab M. Qwakneh, Khaled A. AlHammami, A. Omar, Yanal S. Faouri","doi":"10.1109/ICRAMET51080.2020.9298688","DOIUrl":"https://doi.org/10.1109/ICRAMET51080.2020.9298688","url":null,"abstract":"A slot antenna has been designed and optimized to obtain frequency reconfigurability over a wide range of frequencies. The proposed antenna has a rectangular slot with a hexagonal slot being placed in the inner conducting element. The antenna is fed through a 50Ω microstrip feed line placed on the other side of the substrate. The resonant frequency is controlled by changing the capacitance value of the varactor diode place between the two conducting elements providing a various range of resonance frequencies, frequency bands, and different bandwidths. The suggested slot antenna is simulated using the Ansys Electronics Desktop simulator (HFSS). The reflection coefficient shows the quad frequency bands cover (2.31 − 2.5), (2.9 − 3.27), (4.28 − 5.23), and (5.4 − 5.74) GHz. Other antenna parameters have been monitored to verify its performance such as gain, radiation efficiency, input impedance, and radiation patterns.","PeriodicalId":228482,"journal":{"name":"2020 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134352787","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}
Pub Date : 2020-11-18DOI: 10.1109/ICRAMET51080.2020.9298624
Guo Bai, Yuanzhi Liu, C. Liao
A broadband, high gain microstrip Yagi antenna operating at 28GHz and targeting on 5G applications is presented in this paper. The antenna is composed of a printed dipole with improved performance and three directors. Getting benefits from arc chamfering and bow tie structure, the antenna shows broadened bandwidth compared to conventional microstrip Yagi antennas. Next, an array which consists of eight linear arranged proposed antennas is designed and simulated. Fed by an unequal microstrip power divider, the array exhibits a fractional -10dB impedance bandwidth of 46.4% at 28GHz, a stable gain of higher than 15dBi and a low sidelobe level of -19.2dB in the operating frequency band.
{"title":"A Broadband High Gain Microstrip Yagi Antenna Array for Mm-wave Communication Systems","authors":"Guo Bai, Yuanzhi Liu, C. Liao","doi":"10.1109/ICRAMET51080.2020.9298624","DOIUrl":"https://doi.org/10.1109/ICRAMET51080.2020.9298624","url":null,"abstract":"A broadband, high gain microstrip Yagi antenna operating at 28GHz and targeting on 5G applications is presented in this paper. The antenna is composed of a printed dipole with improved performance and three directors. Getting benefits from arc chamfering and bow tie structure, the antenna shows broadened bandwidth compared to conventional microstrip Yagi antennas. Next, an array which consists of eight linear arranged proposed antennas is designed and simulated. Fed by an unequal microstrip power divider, the array exhibits a fractional -10dB impedance bandwidth of 46.4% at 28GHz, a stable gain of higher than 15dBi and a low sidelobe level of -19.2dB in the operating frequency band.","PeriodicalId":228482,"journal":{"name":"2020 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132784282","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}
Pub Date : 2020-11-18DOI: 10.1109/ICRAMET51080.2020.9298643
A. Yuniarti, N. Suciati, A. Arifin
3D reconstruction of 2D images is a classical problem in computer vision. Conventional methods have been proposed using multiple image registration, intrinsic and extrinsic camera parameter estimation, and optimization methods. Recently, the availability of a 3D dataset publicly shared has encouraged a deep-learning-based method for single-view reconstruction. One approach was by employing direct image encoding to the 3D point decoding approach as in PointNet and AtlasNet. Some other research directions attempted to retrieve 3D data using deep-learning-based methods, which employed a convolutional neural network (CNN). However, the use of CNN in image classification specific for the 3D reconstruction task still needs to be investigated because, usually, CNN was used as an image encoder in an auto-encoder setting instead of a classification module in a point generation network. Moreover, there is a lack of reports on the performance evaluation of deep-learning-based method on images rendered from 3D data, such as ShapeNet rendering images. In this paper, we implemented several deep-learning models to decode the ShapeNet rendering images that contain 13 model categories to examine the various hyper-parameters' impacts on each 3D model category. Our experiments showed that the hyper-parameters of the learning rate and epochs set to either 0.001 or 0.0001 and 60-80 epochs significantly outperformed other settings. Moreover, we observed that regardless of network configuration, some categories (plane, watercraft, car) performed better throughout the study. Therefore, a 3D reconstruction based on image classification can be designed based on the best performing categories.
{"title":"Image Classification Performance Evaluation for 3D Model Reconstruction","authors":"A. Yuniarti, N. Suciati, A. Arifin","doi":"10.1109/ICRAMET51080.2020.9298643","DOIUrl":"https://doi.org/10.1109/ICRAMET51080.2020.9298643","url":null,"abstract":"3D reconstruction of 2D images is a classical problem in computer vision. Conventional methods have been proposed using multiple image registration, intrinsic and extrinsic camera parameter estimation, and optimization methods. Recently, the availability of a 3D dataset publicly shared has encouraged a deep-learning-based method for single-view reconstruction. One approach was by employing direct image encoding to the 3D point decoding approach as in PointNet and AtlasNet. Some other research directions attempted to retrieve 3D data using deep-learning-based methods, which employed a convolutional neural network (CNN). However, the use of CNN in image classification specific for the 3D reconstruction task still needs to be investigated because, usually, CNN was used as an image encoder in an auto-encoder setting instead of a classification module in a point generation network. Moreover, there is a lack of reports on the performance evaluation of deep-learning-based method on images rendered from 3D data, such as ShapeNet rendering images. In this paper, we implemented several deep-learning models to decode the ShapeNet rendering images that contain 13 model categories to examine the various hyper-parameters' impacts on each 3D model category. Our experiments showed that the hyper-parameters of the learning rate and epochs set to either 0.001 or 0.0001 and 60-80 epochs significantly outperformed other settings. Moreover, we observed that regardless of network configuration, some categories (plane, watercraft, car) performed better throughout the study. Therefore, a 3D reconstruction based on image classification can be designed based on the best performing categories.","PeriodicalId":228482,"journal":{"name":"2020 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127064560","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}
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