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2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)最新文献

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An 8 Way Power Combined 28GHz Direct Downconversion Receiver for 5G RF Beamformers 用于5G射频波束形成器的8路功率组合28GHz直接下变频接收机
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958071
Ashish Gupta, R. Bhattacharya, V. Aggarwal, T. Kukal, Alex Tiker, S. Aniruddhan
{"title":"An 8 Way Power Combined 28GHz Direct Downconversion Receiver for 5G RF Beamformers","authors":"Ashish Gupta, R. Bhattacharya, V. Aggarwal, T. Kukal, Alex Tiker, S. Aniruddhan","doi":"10.1109/COMCAS44984.2019.8958071","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958071","url":null,"abstract":"A passive eight-way power combined 28GHz mm-wave Gilbert cell I-Q Mixer in a 45nm bulk CMOS process is reported in this work for 5G RF beamformers. The 8:1 novel lumped quarter wave combiner/splitter utilizes transformer coupling to achieve a post layout efficiency of 67%, with a 2X reduction in area when compared to a spiral inductor-only implementation. With an isolation between ports greater than -22 dB, the amplitude and phase mismatch of the power combiner are kept within 0.3dB and 3 degrees respectively. Post-layout EM simulations of the I-Q mixer utilizing a current bleed technique predict a gain of 9dB, an OIP3 of +9dBm and a noise Figure of 9.9dB at a power consumption of 17mW in an active area of only 0.39mm2. The I-Q mismatch of the receiver is 0.5 dB in amplitude and 0.5 degree in phase, leading to an RSB $lt -40$dBc. To ensure compact realization, two key layout improvements over a conventional mm-wave Gilbert cell are also discussed.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126465944","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
Effectiveness of Various 5G Modulation Techniques in Different Weather Conditions 各种5G调制技术在不同天气条件下的有效性
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958042
Y. Golovachev, Aaron Mazor, G. Pinhasi, Y. Pinhasi
{"title":"Effectiveness of Various 5G Modulation Techniques in Different Weather Conditions","authors":"Y. Golovachev, Aaron Mazor, G. Pinhasi, Y. Pinhasi","doi":"10.1109/COMCAS44984.2019.8958042","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958042","url":null,"abstract":"One of the most ambitious technologies applied for the transition to 5G telecommunications is the Millimeter Wave (MMW) transmissions, i.e. the allocation of bandwidth within the Extremely High Frequency range. However this technology poses significant challenges, including susceptibility to phase distortion due to weather conditions. In the current paper, the commonly used Orthogonal Division Frequency Multiplexing (OFDM) transmission scheme and the more recently proposed Filter Bank Multi Carrier (FBMC) method were tested with respect to weather-induced phase shift phenomenon. The results reveal that the use of FBMC, under certain conditions, outperforms the use of traditional OFDM and it may be a leading candidate for 5G communications","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125693577","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
Advanced Real-Time Strategies for Direction Finding in Rapidly Changing Scenario 快速变化场景下的先进实时测向策略
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958275
P. Rocca, M. Hannan, G. Oliveri
{"title":"Advanced Real-Time Strategies for Direction Finding in Rapidly Changing Scenario","authors":"P. Rocca, M. Hannan, G. Oliveri","doi":"10.1109/COMCAS44984.2019.8958275","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958275","url":null,"abstract":"Recent advances on real-time direction finding strategies based on Bayesian Compressive Sensing (BCS) are discussed here. The open-circuit voltages measured at any instant of time (single snapshot data) are processed by the single-task and the multi-task Bayesian Compressive Sensing (ST-BCS and MT-BCS), combined with single frequency and multi-frequency approaches, respectively. In particular, the ST-BCS is integrated within an iterative multi-scaling strategy (IMSA-BCS) for narrowband signals and the MT-BCS is extended to the multi-frequency BCS (MF-BCS) for wideband signals. The selected results from an extensive analysis highlight that the proposed approaches estimate the DoAs with high accuracy in a fraction of second.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125765228","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
Intrusion Detection System Model Implementation against DDOS attacks 针对DDOS攻击的入侵检测系统模型实现
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958346
M. Nenova, Denis Atanasov, K. Kassev, A. Nenov
{"title":"Intrusion Detection System Model Implementation against DDOS attacks","authors":"M. Nenova, Denis Atanasov, K. Kassev, A. Nenov","doi":"10.1109/COMCAS44984.2019.8958346","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958346","url":null,"abstract":"In the paper is presented implementation of a system for detecting intrusion actions. An implementation of intrusion detection systems (IDS), their architectures, and intrusion detection methods are investigated. Analyzed are methods for SNORT (IDS) bandwidth traffic analysis in intrusion detection and prevention systems. The main requirements for Installation and configuration of the system are also discussed. Then the configuration of the firewall policy and specifics there, are also presented. It is also described the database structure, the operating modes, and analysis of the rules. Two of the most commonly implemented attacks and model for defense against them is proposed.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127344407","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
Considerations on 120GHz LO Signal Generation and Distribution for Highly-Integrated Multi-Channel Radar Transceivers 高集成度多通道雷达收发器中120GHz本路信号产生与分布的思考
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958335
Andrea Bilato, V. Issakov, A. Bevilacqua
{"title":"Considerations on 120GHz LO Signal Generation and Distribution for Highly-Integrated Multi-Channel Radar Transceivers","authors":"Andrea Bilato, V. Issakov, A. Bevilacqua","doi":"10.1109/COMCAS44984.2019.8958335","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958335","url":null,"abstract":"This paper presents considerations on the choices related to the design of the generation and distribution network of the LO signal for multi-channel radar transceivers working at 120GHz. Many constraints regarding output power, bandwidth phase noise and power consumption need to be considered concurrently. Deciding which one is the best solution is not a straightforward choice. This paper shows a systematic comparison of different LO generation and distribution architectures and introduces a Figure of merit for the evaluation of the results. Simulations are performed in $0.13 mu mathrm{m}$ SiGe BiCMOS technology with a 1.8V supply.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130781668","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
Ambiguity Function Based Radar Waveform Classification and Unsupervised Adaptation Using Deep CNN Models 基于模糊函数的雷达波形分类和深度CNN模型的无监督自适应
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958242
Pavel Itkin, N. Levanon
{"title":"Ambiguity Function Based Radar Waveform Classification and Unsupervised Adaptation Using Deep CNN Models","authors":"Pavel Itkin, N. Levanon","doi":"10.1109/COMCAS44984.2019.8958242","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958242","url":null,"abstract":"We present a robust generalized approach to phase and frequency modulated LPI Radar waveform classification and adaptation, inspired by deep convolutional neural architectures. We use a complex Ambiguity Function matrix as a pre-processing step, following which, a waveform classification, or adaptation to unlabeled reference target domains, is performed. We test our method on a wide range of tasks, datasets, and different signal distributions. Our method surpasses the state-of-the-art performance on classification problems on multi-encoding, multi-feature datasets, in diverse and challenging conditions. Our novel approach to an unlabeled Radar waveform adaptation reveals impressive classification improvements to domain shifted unlabeled signals.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131779284","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
Mode Selection of Wideband Acoustic Signals Using Time-Frequency (Warping) Analysis for Single Hydrophone. Comparison with Array Filtering in Variable Medium 基于单水听器时频(翘曲)分析的宽带声信号模式选择。可变介质中阵列滤波的比较
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958259
M. Yarina, B. Katsnelson
{"title":"Mode Selection of Wideband Acoustic Signals Using Time-Frequency (Warping) Analysis for Single Hydrophone. Comparison with Array Filtering in Variable Medium","authors":"M. Yarina, B. Katsnelson","doi":"10.1109/COMCAS44984.2019.8958259","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958259","url":null,"abstract":"broadband air-gun data from SWARM’95 experiment in shallow water area of Atlantic shelf are used to analyze mode filtering using time-frequency analysis in the form of Warping Transform. Sound fluctuations in the presence of nonlinear internal waves are considered using this analysis. Results are compared with mode filtering using vertical line array (VLA). It is shown that Warping Transform allows us to provide mode filtering in shallow water environment, changing in time and space in the presence of moving nonlinear internal waves by single hydrophone only. Temporal variations of mode composition in given case have properties specific for manifestation of horizontal refraction in the form of focusing/defocusing in horizontal plane.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133612570","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
Improving the Accuracy and Quality of Wireless Coverage Measurements using Autonomous Drones and Wheeled Robots 使用自主无人机和轮式机器人提高无线覆盖测量的准确性和质量
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8957865
J. Weitzen, Rachel Wakim, J. Watts, E. Aoki, Sivly Lay, Naye Yoni
{"title":"Improving the Accuracy and Quality of Wireless Coverage Measurements using Autonomous Drones and Wheeled Robots","authors":"J. Weitzen, Rachel Wakim, J. Watts, E. Aoki, Sivly Lay, Naye Yoni","doi":"10.1109/COMCAS44984.2019.8957865","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8957865","url":null,"abstract":"Wireless measurements are critical to the deployment of advanced wireless systems such as WiFi, 4G LTE, and 5G. Detailed measurement data are required to map the level and quality of coverage for service level agreements (SLA), to characterize interference prior to and after deployment, and to characterize and optimize handoff regions. These often- repetitive measurements are time consuming, labor intensive, and prone to human error, especially when performed repetitively. Traditional methods include pushing a cart or carrying a backpack and laptop for performing wireless measurements. This paper discusses the work we are doing to improve the wireless coverage measurement process through automation. For small to medium indoor venues we are experimenting with wheeled robotic platforms, and for large venues such as stadiums, we are experimenting with using UAV's (drones) for mapping wireless coverage. Robot and UAV based platforms provide superior localization and higher resolution and quality data than conventional manual methods.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133717767","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
Detection of Peripheral Artery Stenosis Utilizing Wavelet Coherence Analysis. 利用小波相干分析检测外周动脉狭窄。
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958183
A. Livneh, Alexandra Alexandrovich, N. Amit, S. Glatstein, A. Landesberg
{"title":"Detection of Peripheral Artery Stenosis Utilizing Wavelet Coherence Analysis.","authors":"A. Livneh, Alexandra Alexandrovich, N. Amit, S. Glatstein, A. Landesberg","doi":"10.1109/COMCAS44984.2019.8958183","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958183","url":null,"abstract":"The peripheral arterial disease (PAD) pandemic affects over 200 million patients and is associated with a high risk of cardiovascular morbidity and mortality. The current screening method for PAD measures the ankle to brachial systolic pressure ratio and suffers from severe limitations. We present a novel modality for non-invasive monitoring of extremity perfusion, which employs miniature-sensors and impedance electrodes. Our novel indices of the peripheral perfusion wave dynamics were derived in the time and time-frequency domains over multiple cardiac cycles. The novel modality detected arterial-stenosis, induced by cuff compression, even with undetectable changes in the pressure.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132967990","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
Propagation and Time-of-Arrival of VLF Pulses in the Earth-Ionosphere Waveguide VLF脉冲在地球-电离层波导中的传播和到达时间
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2019-11-01 DOI: 10.1109/COMCAS44984.2019.8958163
S. Marcus, Eran Greenberg, A. Epstein
{"title":"Propagation and Time-of-Arrival of VLF Pulses in the Earth-Ionosphere Waveguide","authors":"S. Marcus, Eran Greenberg, A. Epstein","doi":"10.1109/COMCAS44984.2019.8958163","DOIUrl":"https://doi.org/10.1109/COMCAS44984.2019.8958163","url":null,"abstract":"Very low frequency (VLF) propagation in the earth-ionosphere waveguide has been of interest for many decades. Most computational capabilities have been performed for a single frequency, with time-dependent results (such as those applied to lightning) obtained by inverse-Fourier-transforming these single-frequency components over a spectrum of frequencies. But if time-of-arrival (TOA) of a wave pulse is of interest, a less computationally-intensive method can be employed. Since a single spectral field component in the waveguide may be represented as a sum of modal fields, and since the group velocity is different for each mode, only the mode with the largest group velocity – the lowest order mode – need be calculated to obtain TOA information. This principle is demonstrated in detail for a simple waveguide, and applied to the earth-ionosphere waveguide.","PeriodicalId":276613,"journal":{"name":"2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)","volume":"26 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133424637","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
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