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2020 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)最新文献

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Ultra-High Resolution KOMPSAT-5 SAR Sea-Ice Random Radiometric Anomaly Formulation Based On Hybrid Domain Texture Decomposition 基于混合区域纹理分解的超高分辨率KOMPSAT-5 SAR海冰随机辐射异常公式
I. H. Shahrezaei, Hyun‐cheol Kim, T. Chae
Image texture in synthetic aperture radar (SAR) is a mixture of inherent texture of the surface backscattering and non-coherent backscattering interactions in the form of random radiometric anomalies that ends up in the loss of information and data inconsistency. According to the multilayer structure of polar region, which is a non-deterministic and constantly changing medium on the basis of time, these time- dependent anomalies can lead to misinterpretation. As a novel approach, a time-frequency Gamma probability distribution function (PDF) formulation of such multiplicative anomaly has been proposed for high-resolution SAR sea-ice dataset information analysis and the texture quality improvement. The proposed hybrid-domain approach is tested on a real KOMPSAT-5 SAR satellite sea-ice image and the results verify the formulation, modeling, and their suppression scenario.
合成孔径雷达(SAR)图像纹理是表面后向散射和非相干后向散射相互作用的固有纹理的混合,以随机辐射异常的形式出现,最终导致信息丢失和数据不一致。由于极区是一个不确定的、以时间为基础的不断变化的介质,因此这些时变异常可能导致误读。针对高分辨率SAR海冰数据集信息分析和纹理质量改进,提出了一种基于时频伽玛概率分布函数(PDF)的乘法异常计算方法。在真实的KOMPSAT-5 SAR卫星海冰图像上对所提出的混合域方法进行了测试,结果验证了该方法的表述、建模和抑制场景。
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引用次数: 1
Implementation Array-Slotted Miliwires in Artificial Dielectric Material on Waveguide Filters Te10 Mode 人工介电材料阵列开槽导线在波导滤波器Te10模式上的实现
M. R. Hidayat, Salita Ulitia Prini, Rivaldi Zaky NA, H. R. Iskandar, E. Taryana, Sofyan Basuki
The development of technology related to telecommunications equipment experimented from many research in improving its performance. The use of dielectric materials is widely applied in various telecommunications devices such as antennas or filters. The dielectric filter has the ability to change the working response of the filter, but the dielectric has limitations due to the dielectric characteristic itself both in terms of dimensions and the nature of the material. Therefore, in order to vary the properties of the dielectric itself an additional component in the form of metal is used in order to modify the dielectric itself into an artificial dielectric. In this research a filter will be made using artificial dielectric, Array-Slotted Miliwires by inserting a copper wire into the FR-4 dielectric material. Characteristics of artificial dielectric materials against filter work response are observed by varying the properties of the wires namely height, number, and distance between wires. The results of the design realized in the form of hardware is obtained with a value of S11 = -16.6 dB and S21 = -0.26 dB at a frequency of 3.5 GHz. The measurement results obtained by the filter work response at a frequency of 4.2 GHz with a value of S11 = -26.95 dB and S21 = -8.44 dB. Differences from simulation and measurement results are analyzed due to the use of adhesives causing a decrease in the permittivity value of the material. It also can be concluded that by reducing the numbers of wires will shift the frequency respond of the filter lower.
与电信设备相关的技术的发展从许多研究中尝试了提高其性能。电介质材料的使用广泛应用于各种电信设备,如天线或滤波器。介电滤波器具有改变滤波器工作响应的能力,但由于介电特性本身在尺寸和材料性质方面都有限制。因此,为了改变电介质本身的性质,使用了金属形式的附加成分,以便将电介质本身修改为人工电介质。在本研究中,将一根铜线插入FR-4介电材料中,使用人工介质阵列开槽导线制成滤波器。通过改变导线的特性,即高度、数目和导线之间的距离,观察人工介电材料对滤波器功响应的特性。在3.5 GHz频率下,以硬件形式实现的设计结果为S11 = -16.6 dB, S21 = -0.26 dB。测量结果表明,滤波器在4.2 GHz频率下的工作响应值分别为S11 = -26.95 dB和S21 = -8.44 dB。分析了由于胶粘剂的使用导致材料介电常数值降低而导致的模拟结果与测量结果的差异。还可以得出结论,通过减少导线的数量将使滤波器的频率响应降低。
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引用次数: 0
Design of a Transmitarray Antenna with Triple Rectangular Rings at 29 GHz 29 GHz三矩形环发射阵列天线的设计
Ristia Ningsih, Anggoro Anggoro, Umaisaroh Umaisaroh, M. Alaydrus
Antenna with high gain and steerable beam is a challenging requirement for point to point wireless communications. Antennas in array configurations can provide high gain characteristic and beam focus. Transmitarray antenna in the last decade is getting high interest for researchers to provide high gain antenna with space-feed mechanism for steering beam feature by accommodating phase distributions of unit cell element in array form. This paper proposes a design of transmitarray in 29 GHz frequency. The unit cell consists of triple rectangular loops. The simulated and fabricated results confirmed that the gain value obtained is 23.6 dB.
具有高增益和波束可操纵的天线是点对点无线通信的一个具有挑战性的要求。阵列天线可以提供高增益特性和波束聚焦。发射阵列天线是近十年来备受关注的研究方向,其研究方向是提供具有空间馈源机制的高增益天线,通过适应阵列形式的单元元相位分布来控制波束特征。本文提出了一种29 GHz频率发射阵列的设计方案。单元格由三个矩形回路组成。仿真和制作结果证实,所得增益值为23.6 dB。
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引用次数: 1
Quality of Service (QoS) Analysis for Real-Time Telemetry By IP Satellite Communication IP卫星通信实时遥测服务质量(QoS)分析
Y. Firmansyah, N. Rahayu, Y. Prabowo, I. Y. Putro, F. Kurniawan
This paper presents the Quality of Service (QoS) analysis for real-time telemetry by Internet Protocol (IP) satellite communication for LAPAN Surveillance UAV (LSU) platform. The satellite communication system is one of the communication systems that provide a broadband of communication space. Hence, Aeronautic Technology Center of National Institute of Aeronautics and Space (Pustekbang-LAPAN) proposed real-time communication UAV by using satellite as its repeater. The topic to be discussed in this paper is the reliability of an IP-based modem that is defined as the quality of service (QoS). QoS parameters used for data transfer performance analysis are packet loss, delay, and jitter. The communication protocol used in this test is User Datagram Protocol (UDP) with Virtual Private Network (VPN) and without VPN. Data obtained using network traffic monitor named Wireshark. From the results of data analysis, packet loss data on the UDP protocol with VPN is 1.96% with an average delay of 1.12 seconds while for UDP packet loss protocol without VPN is 4.56% with a delay of 0.96. In terms of communication channel reliability, it is found that the use of UDP with VPN is better in QoS
本文介绍了基于互联网协议(IP)卫星通信的LAPAN监视无人机(LSU)平台实时遥测服务质量(QoS)分析。卫星通信系统是提供宽带通信空间的通信系统之一。因此,国家航空航天研究所航空技术中心(Pustekbang-LAPAN)提出使用卫星作为其中继器的实时通信无人机。本文要讨论的主题是基于ip的调制解调器的可靠性,即服务质量(QoS)。用于数据传输性能分析的QoS参数包括丢包、时延和抖动。本次测试使用的通信协议为UDP (User Datagram protocol)协议,带VPN (Virtual Private Network),不带VPN。通过名为Wireshark的网络流量监视器获取的数据。从数据分析的结果来看,带VPN的UDP协议丢包数据为1.96%,平均时延为1.12秒;不带VPN的UDP丢包数据为4.56%,平均时延为0.96秒。在通信信道可靠性方面,发现UDP与VPN结合使用在QoS方面有更好的表现
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引用次数: 4
Video Analysis on Handwashing Movement for the Completeness Evaluation 手洗动作完整性评价的视频分析
E. Prakasa, B. Sugiarto
The pandemic situation of COVID-19 is still ongoing in every part of the world countries. Up to now, the medicine and the vaccination for curing the COVID-19 are not yet available. Since the vaccine and medication of COVID-19 are not yet available, the government in many countries are strongly socialising three kinds of new practices. The new habits are physical distancing, wearing a mask, and handwashing frequently. This paper focuses on assessing the completeness of handwashing. The handwashing frames are extracted from a video clip. The frames are then categorised into six-movement steps by using a deep learning-based algorithm. The frame of hand object is separated from the video by applying skin colour differentiation. Two kinds of experiments based on two different video sources are performed in the paper. Scoring simulation is also conducted in the research. The results show that the proposed method can give an excellent performance with accuracy values not less than 90%.
COVID-19大流行疫情在世界各地仍在持续。到目前为止,还没有治疗新冠肺炎的药物和疫苗。由于COVID-19的疫苗和药物尚未获得,许多国家的政府正在大力推行三种新做法。新习惯是保持身体距离、戴口罩和勤洗手。本文的重点是评估洗手的完整性。洗手帧是从一个视频剪辑中提取出来的。然后使用基于深度学习的算法将这些帧分为六个动作步骤。通过皮肤颜色的区分,将手部物体的帧与视频分离。本文基于两种不同的视频源进行了两种实验。在研究中还进行了计分仿真。结果表明,该方法具有良好的性能,精度不低于90%。
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引用次数: 1
Pre-Development Analysis of Truther Framework: A Platform to Verify Information Authenticity Truther框架的开发前分析:一个信息真实性验证平台
Alfian Akbar Gozali
Today, an enormous information stream rapidly floods from various channels and media, such as websites, blogs, WhatsApp, Facebook, etc. This condition makes us incapable of reading all the content, let alone verify the context. To overcome this fuzzy problem, we introduce Truther, a lightweight on-demand app and web browser plugin, to verify digital information. Truther can verify text and images from websites, blogs, WhatsApp, Facebook, and more. It is mainly based on text input, so the usage is very open to any possibility. Truther is backing up by three central back-end systems such as Truther Validator (the cross-language text semantic verifier for validating a post), Truther Debunker Aggregator (aggregator of many hoax-debunker websites), and third-party API (Google, DuckDuckGo, and Microsoft Cognitive Service API). This paper mainly discusses our proposed framework’s pre-development analysis, its cross-language text semantic verifier, and MVP experiment result. As an additional finding, we also formalize the proposed business model of Truther.
今天,巨大的信息流从各种渠道和媒体如网站、博客、WhatsApp、Facebook等迅速涌入。这种情况使我们无法阅读所有的内容,更不用说验证上下文了。为了克服这个模糊问题,我们引入了Truther,一个轻量级的按需应用程序和web浏览器插件,来验证数字信息。Truther可以验证来自网站,博客,WhatsApp, Facebook等的文本和图像。它主要是基于文本输入,所以使用是非常开放的任何可能性。Truther由三个中央后端系统提供支持,例如Truther Validator(用于验证帖子的跨语言文本语义验证器)、Truther Debunker Aggregator(许多恶作剧揭穿网站的聚合器)和第三方API (Google、DuckDuckGo和Microsoft认知服务API)。本文主要讨论了该框架的开发前分析、跨语言文本语义验证以及MVP实验结果。作为一个额外的发现,我们也正式提出了Truther的商业模式。
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引用次数: 0
Design and Improvement of Cross-Coupled Rectifier Using 0.18 µm CMOS Process Technology 基于0.18µm CMOS工艺技术的交叉耦合整流器设计与改进
Irawan Sukma, I. Supono
The rectifier is one of parts from receiver circuit used for wireless power transfer (WPT) and energy harvesting (EH) application, so improving the efficiency of rectifier is a critical point for WPT and EH application. The previous research of cross-coupled inverter (CCI) rectifier used 0.35 µm CMOS process technology. It showed the highest power conversion efficiency (PCE) achieved 60% when 100 kOhm load, 0.7 V voltage input and 13.56 MHz RFID frequency input. This paper uses CCI rectifier circuit design with 0.18 µm CMOS process technology for improving voltage output. The result shows PCE 0.18 µm higher than 0.35 µm CCI rectifier with 0.4 mW of maximum power output and 93.30%, when it uses load 2 kOhm, 300 kHz frequency input and ideal voltage source. It occurred because 0.18 µm CCI rectifier has lower leakage current drain to source (Ids) of MOSFET. In addition, the internal resistance voltage source from 1 to 100 Ohm can decrease efficiency of CCI rectifier from 86% to 79%. The result of voltage co version efficiency is slightly raised from 95% to 99%, with maximum voltage output of 3.28 V on load over than 1 kOhm.
整流器是无线电力传输(WPT)和能量收集(EH)应用中接收电路的部件之一,因此提高整流器的效率是无线电力传输和EH应用的关键。以往研究的交叉耦合逆变器(CCI)整流器采用0.35µm CMOS工艺技术。当负载为100 kOhm,电压为0.7 V, RFID频率为13.56 MHz时,功率转换效率(PCE)达到60%。本文采用CCI整流电路设计,采用0.18µm CMOS工艺技术提高电压输出。结果表明,当负载为2 kOhm,频率输入为300 kHz,电压源为理想电压源时,PCE比CCI整流器的0.35µm输出功率高0.18µm,输出功率为0.4 mW,提高了93.30%。这是因为0.18µm CCI整流器具有较低的MOSFET漏极漏源电流(Ids)。另外,1 ~ 100欧姆的内阻电压源可以使CCI整流器的效率从86%降低到79%。电压转换效率从95%略微提高到99%,负载大于1 kOhm时的最大电压输出为3.28 V。
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引用次数: 0
Miniature Folded Modified Log-Periodic Shaped Tag Antenna for Metal Mountable UHF RFID 用于金属超高频射频识别的微型折叠改进对数周期形状标签天线
N. Ripin, E. Lim, K. H. Yusof, M. Basir
A miniature and compact folded radio frequency identification (RFID) tag antenna, which consists of a modified log-periodic shaped patch is proposed. The patch is shorted to the ground using a narrow stub, where the inductive thin stub is used for frequency tuning. The proposed tag is designed using a flexible polyethylene terephthalate substrate with a very compact size of only 30 mm × 35 mm × 1.71 mm (0.092λ × 0.108λ × 0.005λ at 922 MHz). The proposed tag antenna has a compact and novel structure, and it is also able to provide sufficient resistance and inductive reactance to enable conjugate match with the chip. The proposed tag antenna is capable of achieving a power transmission coefficient of ~1 and a maximum read distance of 8.87 m when mounted on a 20 cm × 20 cm metallic surface.
提出了一种由改进的对数周期形状贴片组成的小型紧凑型折叠射频识别(RFID)标签天线。该贴片使用窄短根短接到地面,其中感应细短根用于频率调谐。该标签采用柔性聚对苯二甲酸乙二醇酯衬底设计,尺寸非常紧凑,仅为30 mm × 35 mm × 1.71 mm(在922 MHz时为0.092λ × 0.108λ × 0.005λ)。所提出的标签天线结构紧凑新颖,并且能够提供足够的电阻和电感抗,实现与芯片的共轭匹配。该标签天线安装在20cm × 20cm的金属表面时,传输系数为~1,最大读取距离为8.87 m。
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引用次数: 0
Signal Processing Algorithm for Pre-processing the Surface Plasmon Resonance Signal Response 表面等离子体共振信号响应预处理的信号处理算法
I. Anshori, Aminul Solihin, Muhammad Harun Alrasyid, S. Harimurti, G. Gumilar, Muhammad Yusuf, Silmina Prastriyati Sari, B. Yuliarto, W. Arnafia
Surface plasmon resonance (SPR) is a versatile optical bio-sensing technique which has an ability to detect antibody-antigen molecular binding. In this work, we present a data processing algorithm that can process and analyze the data output from SPR equipment. The SPR data output is typically a non-periodic square wave, an indicator that a biological substance is captured, with continuous noises. To remove the outliers and smoothen the data, moving average and Savitzky-Golay Filter were employed. Then, a change point detection method and polynomial regression were used to isolate the buffer data as baseline and give baseline prediction which is later used to calculate and quantify the response. From this study, the algorithm is expected to give an accurate baseline prediction and response calculation. Based on the results, the algorithm was able to detect the SPR signal response (change point detection) with an error below 15%. Thus, this algorithm would enable the researcher to analyze and interpret the SPR data much faster and simpler.
表面等离子体共振(SPR)是一种多功能的光学生物传感技术,具有检测抗体-抗原分子结合的能力。在这项工作中,我们提出了一种数据处理算法,可以处理和分析SPR设备输出的数据。SPR数据输出通常是非周期性方波,这是捕获生物物质的指示,具有连续噪声。为了去除异常值并使数据平滑,采用了移动平均和Savitzky-Golay滤波。然后,采用变化点检测法和多项式回归分离缓冲数据作为基线,并给出基线预测,用于计算和量化响应。通过本研究,期望该算法能够给出准确的基线预测和响应计算。结果表明,该算法能够检测到SPR信号响应(变化点检测),误差在15%以下。因此,该算法将使研究人员能够更快、更简单地分析和解释SPR数据。
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引用次数: 1
Quantized Convolutional Neural Network toward Real-time Arrhythmia Detection in Edge Device 面向边缘设备心律失常实时检测的量化卷积神经网络
M. Rizqyawan, A. Munandar, M. F. Amri, Rio Korio Utoro, Agus Pratondo
Automatic arrhythmia detection is one of the most researched areas in electrocardiography (ECG). Many methods have been proposed for the task using, not only the traditional machine learning but also deep learning algorithms. To build a real-time edge device, the algorithm should be fast but keep the accuracy high. In this paper, a convolutional neural network (CNN) model is quantized and tested to investigate its performance for the device. Results indicate that the CNN architecture is suitable for a real-time edge device. The speed is 58.8 times faster compared to the state-of-the-art methods.
心律失常自动检测是心电图学研究的热点之一。对于该任务,已经提出了许多方法,不仅使用传统的机器学习,还使用深度学习算法。为了构建实时的边缘设备,算法既要快速,又要保持较高的精度。本文对卷积神经网络(CNN)模型进行了量化和测试,以研究其在器件中的性能。结果表明,CNN架构适用于实时边缘设备。速度比目前最先进的方法快58.8倍。
{"title":"Quantized Convolutional Neural Network toward Real-time Arrhythmia Detection in Edge Device","authors":"M. Rizqyawan, A. Munandar, M. F. Amri, Rio Korio Utoro, Agus Pratondo","doi":"10.1109/ICRAMET51080.2020.9298667","DOIUrl":"https://doi.org/10.1109/ICRAMET51080.2020.9298667","url":null,"abstract":"Automatic arrhythmia detection is one of the most researched areas in electrocardiography (ECG). Many methods have been proposed for the task using, not only the traditional machine learning but also deep learning algorithms. To build a real-time edge device, the algorithm should be fast but keep the accuracy high. In this paper, a convolutional neural network (CNN) model is quantized and tested to investigate its performance for the device. Results indicate that the CNN architecture is suitable for a real-time edge device. The speed is 58.8 times faster compared to the state-of-the-art methods.","PeriodicalId":228482,"journal":{"name":"2020 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)","volume":"9 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":"133108428","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: 10
期刊
2020 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)
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