发布求助
文献互助 智能选刊 最新文献

2012 IEEE International Conference on Ultra-Wideband最新文献

筛选
英文 中文
Characterization of compact disc UWB monopole antennas using the Singularity Expansion Method 用奇异展开法表征光盘超宽带单极天线
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340490
D. Rialet, S. Podilchak, M. Clénet, M. Essaaidi, Y. Antar
{"title":"Characterization of compact disc UWB monopole antennas using the Singularity Expansion Method","authors":"D. Rialet, S. Podilchak, M. Clénet, M. Essaaidi, Y. Antar","doi":"10.1109/ICUWB.2012.6340490","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340490","url":null,"abstract":"This work employs the Singularity Expansion Method (SEM) to model a metallic monopole operating above a conducting ground plane followed by an analysis of printed circular disc antennas. To the authors knowledge, this is the first time that such a SEM analysis has been completed for these planar circular disc ultrawideband (UWB) monopoles. Complete characterization of this nature, in both the time and complex frequency domains, is important to ensure a robust design and valid UWB performance.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131302419","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: 4
Recent topics in Ultra-Wideband Antennas 超宽带天线的最新研究课题
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340390
E. Farr
{"title":"Recent topics in Ultra-Wideband Antennas","authors":"E. Farr","doi":"10.1109/ICUWB.2012.6340390","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340390","url":null,"abstract":"We study here three topics in Ultra-Wideband Antennas. First, we consider a standard for characterizing antenna performance in the time domain, We develop a single time domain function, called antenna impulse response, which fully describes antenna performance with equations that are as simple as possible in both the frequency and time domains. Next, we survey the available large UWB antennas, primarily consisting of variations of Impulse Radiating Antennas. These consist of a reflector and a wideband feed, and are capable of nearly two decades of bandwidth; or a 100:1 band ratio. Finally, we review the status of time domain UWB antenna ranges, which can be used to characterize both wideband and narrowband antennas in both the time and frequency domains. Such systems also measure the impulse response of an antenna.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123324850","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
Antenna characteristics and ranging robustness with double quadrature receiver and UWB impulse radio 双正交接收机和超宽带脉冲无线电的天线特性和测距鲁棒性
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340495
F. Bautista, D. Morche, S. Bories, G. Masson
{"title":"Antenna characteristics and ranging robustness with double quadrature receiver and UWB impulse radio","authors":"F. Bautista, D. Morche, S. Bories, G. Masson","doi":"10.1109/ICUWB.2012.6340495","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340495","url":null,"abstract":"This paper analyzes the effect of the antenna characteristics on the ranging precision of UWB impulse radio receivers. It shows that the influence of the antenna highly depends on the chosen RF architecture. The single quadrature receiver architecture is first explained and analyzed. Then the double quadrature receiver is presented and its robustness is justified. A small size miniaturized ultra wideband antenna is then described. This antenna is exploited to validate the robustness thanks to link level simulations.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127362539","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
Tracking of UWB multipath components using probability hypothesis density filters 基于概率假设密度滤波器的超宽带多径分量跟踪
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340452
Markus Fröhle, P. Meissner, K. Witrisal
{"title":"Tracking of UWB multipath components using probability hypothesis density filters","authors":"Markus Fröhle, P. Meissner, K. Witrisal","doi":"10.1109/ICUWB.2012.6340452","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340452","url":null,"abstract":"In multipath assisted indoor navigation and tracking (MINT), individual multipath components (MPCs) of the ultra wideband (UWB) channel needs to be extracted. A sequential Monte-Carlo based implementation of the multi-source multitarget probability hypothesis density (PHD) filter is used in order to jointly estimate the number of multipath components present as well as their individual parameters. The PHD-Filter is able to model the changing visibility of individual multipath components along a measurement trajectory. As the PHD-Filter does not maintain target track continuity, a path-labelling method is used. The performance is evaluated with UWB measurements obtained in an indoor scenario. Despite the high amount of diffuse multipath present in the measurements, the PHD-Filter is able to detect most of the MPCs compared to the groundtruth. Track continuity is maintained for several succeeding positions of the mobile along the measurement trajectory.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127263958","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
A Volterra series approach for the design of low-voltage CG-CS active baluns 低压CG-CS有源平衡器的Volterra串联设计方法
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340391
Shan He, C. Saavedra
{"title":"A Volterra series approach for the design of low-voltage CG-CS active baluns","authors":"Shan He, C. Saavedra","doi":"10.1109/ICUWB.2012.6340391","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340391","url":null,"abstract":"A low-voltage active balun and amplifier is presented. The circuit uses a common-gate common-source (CG-CS) noise-cancelling topology with a simple distortion cancellation method to improve the IIP3 performance of the balun-amplifier. A Volterra series analysis is employed to provide insights into the nonlinear behavior of the circuit. A chip was fabricated and the experimental test results show an average voltage gain for the balun-amplifier of 16.2 dB and a maximum IIP3 of -3.8 dBm over the span of 0.3-2.4 GHz. The circuit exhibits a noise figure below 4.0 dB over the measured band and reaches a minimum of 3.2 dB. The chip uses a single 0.9 V dc supply and consumes 15.8 mW of power. The RFIC was fabricated using a standard 130 nm CMOS process.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114190868","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
A study of UWB imaging for bone cancer detection 超宽带成像在骨癌检测中的应用研究
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340479
Maryory Urdaneta, P. Wahid
{"title":"A study of UWB imaging for bone cancer detection","authors":"Maryory Urdaneta, P. Wahid","doi":"10.1109/ICUWB.2012.6340479","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340479","url":null,"abstract":"The use of UWB imaging for bone cancer is described. A UWB monopole antenna in the 1-10 GHz range is used to scan a three layer model of bone, muscle, bone cortex and marrow, with and without a tumor. Using image reconstruction techniques, the results for the detection of the tumor and for an estimation of the tumor size are presented. Tumors of a radius from 8 to 30 mm and at a depth from 2 to 31 mm inside the bone and marrow layer are considered.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124090450","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: 4
Ultra-wideband RF systems for harsh propagation environments 用于恶劣传播环境的超宽带射频系统
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340432
F. Nekoogar, F. Dowla
{"title":"Ultra-wideband RF systems for harsh propagation environments","authors":"F. Nekoogar, F. Dowla","doi":"10.1109/ICUWB.2012.6340432","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340432","url":null,"abstract":"The nature of pulse based transmission in ultrawideband systems offer special characteristics that make them advantageous to conventional RF communications, radar, and tagging/tracking systems. Due to the large bandwidth of such narrow pulses, most industry efforts on UWB has been focused on short ranges (<;10 m) high-bandwidth data transmission. However, the large bandwidth can open the opportunity for other applications with special propagation needs, such as harsh propagation environments, where the conventional narrowband technology faces significant challenges. In this paper we discuss successful developments of UWB technology for special applications in the areas of wireless communications, tomographic radar imaging, and radio frequency identifications (RFID).","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122291343","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
Frequency notching applicable to CMOS implementation of WLAN compatible IR-UWB pulse generators 频率陷波适用于CMOS实现的WLAN兼容IR-UWB脉冲发生器
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340473
M. Shen, J. Mikkelsen, Hao Jiang, O. K. Jensen, T. Larsen
{"title":"Frequency notching applicable to CMOS implementation of WLAN compatible IR-UWB pulse generators","authors":"M. Shen, J. Mikkelsen, Hao Jiang, O. K. Jensen, T. Larsen","doi":"10.1109/ICUWB.2012.6340473","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340473","url":null,"abstract":"Due to overlapping frequency bands, IEEE 802.11a WLAN and Ultra Wide-Band systems potentially suffer from mutual interference problems. This paper proposes a method for inserting frequency notches into the IR-UWB power spectrum to ensure compatibility with WLAN systems. In contrast to conventional approaches where complicated waveform equations are used, the proposed method uses a dual-pulse frequency notching approach to achieve frequency suppression in selected bands. The proposed method offers a solution that is generically applicable to UWB pulse generators using different pulse waveforms. In addition the method can be easily implemented. A prototype UWB pulse generator designed using the proposed method has been fabricated in a standard 0.18 μm CMOS process for verification, and satisfactory results are found.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126663803","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
High data rate coexistence-based channel coding for noncoherent Multiband Impulse Radio UWB 非相干多频带脉冲无线电UWB高数据率共存信道编码
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340447
Hanns-Ulrich Dehner, Daniel Figielek, H. Jaekel, Martin Oberkönig, F. Jondral, K. Witrisal
{"title":"High data rate coexistence-based channel coding for noncoherent Multiband Impulse Radio UWB","authors":"Hanns-Ulrich Dehner, Daniel Figielek, H. Jaekel, Martin Oberkönig, F. Jondral, K. Witrisal","doi":"10.1109/ICUWB.2012.6340447","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340447","url":null,"abstract":"This paper investigates the performance of high data rate coexistence-based channel coding within a noncoherent Multiband Impulse Radio UWB system. It is shown that in the presence of interference the combination of adaptive image-based thresholding and channel coding can lead to a significant performance gain in comparison to thresholding-only. For thresholding two low complex methods, the Otsu algorithm as well as the nonlinear Teager-Kaiser filtering operation, are considered.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126779488","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
Calculation of TMz scattering from a conductive object buried in a grounded lossy medium 埋在有损耗接地介质中的导电物体的TMz散射计算
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340419
A. Kizilay, S. M. Yucedag
{"title":"Calculation of TMz scattering from a conductive object buried in a grounded lossy medium","authors":"A. Kizilay, S. M. Yucedag","doi":"10.1109/ICUWB.2012.6340419","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340419","url":null,"abstract":"The problem of electromagnetic scattering from a cylindrical object of arbitrary cross-section buried in a lossy-grounded dielectric medium is solved using a new numerical solution method. A set of electric field integral equations (EFIEs) for the currents on the object and the portion of the surfaces most strongly interacting with the object are obtained using the surface equivalence principle and a decomposition method. The Method of Moment (MoM) is used to solve the EFIEs in the frequency domain to obtain the scattered electric field.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129178238","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信