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
A compressive sensing approach for secret key agreement based on UWB channel reciprocity 一种基于UWB信道互易的密钥协议压缩感知方法
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340497
G. N. Shirazi, L. Lampe
{"title":"A compressive sensing approach for secret key agreement based on UWB channel reciprocity","authors":"G. N. Shirazi, L. Lampe","doi":"10.1109/ICUWB.2012.6340497","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340497","url":null,"abstract":"We present a compressive sensing (CS) approach for secret key agreement based on UWB channel reciprocity. More generally, we show that the CS problem can be used for solving the distributed source coding problem. We also show that the proposed CS-based secret key agreement protocol (CS-SKAP) provides perfect secrecy, a better key agreement probability, and sometimes a longer secret key length, compared to the traditional syndrome-based distributed source coding techniques.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"5 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":"125372742","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
A UWB 1 to 4 wilkinson power divider with triple high-Q band-notched characteristic using U-shaped DGS 一种采用u型DGS的超宽带1到4威尔金森功率分压器，具有三重高q带陷波特性
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340505
S. H. Ramazannia, S. Chamaani, S. A. Mirtaheri, F. K. M. Yazdi, M. Yazdani
{"title":"A UWB 1 to 4 wilkinson power divider with triple high-Q band-notched characteristic using U-shaped DGS","authors":"S. H. Ramazannia, S. Chamaani, S. A. Mirtaheri, F. K. M. Yazdi, M. Yazdani","doi":"10.1109/ICUWB.2012.6340505","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340505","url":null,"abstract":"Reducing the interference between ultra wideband (UWB) and existing wireless communication systems has become of importance recently. In this study, we propose an equal 1 to 4 power divider (PD) which enables the suppression of three different frequencies, 3.95, 5.2 and 5.8 GHz, in the UWB frequency band by means of U-shaped defected ground structure (DGS). In this respect, it is essential to provide steep band-rejection with high Q-factor. The authors have used a novel method to attain this goal using U-shaped DGS. Studies show that there is a relation between the line width and Q-factor of a given band-notched structure. Therefore, instead of using a 50-50-50 ohm configuration, a 50-100-50 ohm transformation is used which has a narrower line width in the middle of the PD providing a steeper suppression with a high Q-factor. The measured Q-factor compared to similar structures is higher having a value of 27.5 with more than 30 dB suppression.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"38 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":"129577425","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
Performance sensitivities of a microstrip amplifier using Adjoint Network method 用伴随网络法分析微带放大器的性能灵敏度
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340405
S. Demirel, F. Güneş
{"title":"Performance sensitivities of a microstrip amplifier using Adjoint Network method","authors":"S. Demirel, F. Güneş","doi":"10.1109/ICUWB.2012.6340405","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340405","url":null,"abstract":"This work focuses on the performance sensitivities of a wide-band microstrip amplifier along its operation bandwidth using “Adjoint Network and Adjoint Variable” method, via “Wave” approaches, which include sensitivities of the transducer power gain, noise figure, magnitude and phase of the input reflection coefficient. Thus, this work can be considered as an extension of the work in [2] to the performance sensitivities with respect directly to the microstrip width and length. These analytical expressions of the performance sensitivities can be used for the gradient-based efficient optimization, in tolerance and yield analysis of the microstrip amplifiers. Performance sensitivities of the Π-type microstrip amplifier are considered as a worked example. Results of the Π-type amplifier designed for the maximum gain GTmax constrained by the minimum noise figure at each operation frequency Fmin(f) and input VSWR (Vireq= 1.85) within the frequency range 8-18 GHz are given as compared with the results of the perturbational and Chain Parameter methods. Finally sensitivities of all the microstrip lines of the amplifier are arranged according to the increasing values of the sensitivity measures to be considered in the realization stage.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"74 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":"126667627","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
Comparative overview of UWB and VLC for data-intensive and security-sensitive applications UWB和VLC在数据密集型和安全敏感应用中的比较概述
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340468
R. Prasad, A. Mihovska, E. Cianca, S. Mukherjee
{"title":"Comparative overview of UWB and VLC for data-intensive and security-sensitive applications","authors":"R. Prasad, A. Mihovska, E. Cianca, S. Mukherjee","doi":"10.1109/ICUWB.2012.6340468","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340468","url":null,"abstract":"This paper provides a comparative overview of two short-range wireless technologies with high potential for use in various data-intensive and security-sensitive applications, namely, ultra wideband (UWB) and visible light communications (VLC). Both are emerging technologies with some unique features that draw a great research and commercial interest, also because of their applicability to the research in other fields, such as wireless robotics and communications, remote sensing and location-based communications, the medical field, and so forth. The paper outlines the most recent research and standardization developments for both technologies and gives a proposal for their suitability based on a comparative view, of the strengths and weaknesses for use in applications, such as home networking, vehicular communications, and medical care, including the main technical challenges.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"393 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":"131989480","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: 11
Frontend ICs for impulse radio sensing and communications 用于脉冲无线电传感和通信的前端ic
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340407
H. Schumacher, D. Lin, A. Trasser
{"title":"Frontend ICs for impulse radio sensing and communications","authors":"H. Schumacher, D. Lin, A. Trasser","doi":"10.1109/ICUWB.2012.6340407","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340407","url":null,"abstract":"The chipsets discussed in this paper follow the philosophy that the beauty of impulse radio ultra-wideband lies in its simplicity. They provide fully differential circuit solutions in a low-cost SiGe heterostructure bipolar transistor technology addressing short range radar sensors as well as communication links. At the core, an efficient pulse generator concept allows for spectral tunability as well as biphase modulated pulses. Receiver concepts implement correlation detection for radar and biphase modulation, and energy detection for on-off keying communications and localization. Finally, a successful approach to rapid turn-around transmit/receive modules for monostatic IR UWB radars is presented.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"3 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":"131990898","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
Wide bandwidth source for high resolution ranging 用于高分辨率测距的宽带宽源
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340487
Luke Rumbaugh, W. Jemison, Yifei Li, T. Wey
{"title":"Wide bandwidth source for high resolution ranging","authors":"Luke Rumbaugh, W. Jemison, Yifei Li, T. Wey","doi":"10.1109/ICUWB.2012.6340487","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340487","url":null,"abstract":"An erbium-doped fiber ring laser with a 1 km-long resonator cavity is presented as an instantaneous wideband source for high-resolution lidar and radar. This signal source has a high bandwidth and a uniform spectrum, desirable qualities for high performance correlation-based ranging. A microwave bandwidth photodetector is used to convert the optical signal to an electrical signal with 4 GHz of bandwidth, whose spectral flatness is seen to be +/- 2 dB.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"50 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":"131818958","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
Algorithms for synchronization of coherent UWB receivers and their application 相干超宽带接收机的同步算法及其应用
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340395
L. Zwirello, Michael Hesz, L. Sit, T. Zwick
{"title":"Algorithms for synchronization of coherent UWB receivers and their application","authors":"L. Zwirello, Michael Hesz, L. Sit, T. Zwick","doi":"10.1109/ICUWB.2012.6340395","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340395","url":null,"abstract":"In this paper a detailed analysis of an Ultra-Wideband correlation receiver is presented. The synchronization methods are discussed and analyzed in terms of practical realizability. All algorithms are implemented on FPGA and tested with a real UWB transceiver. The measurement results are then evaluated and compared to the ones found in the literature. Finally an application example for the correlation receiver is demonstrated by means of one-way ranging.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"2017 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":"127562726","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
An ultra-wideband spatial filter for a tunnel environment 隧道环境下的超宽带空间滤波器
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340498
Natalie Jones, S. Hum
{"title":"An ultra-wideband spatial filter for a tunnel environment","authors":"Natalie Jones, S. Hum","doi":"10.1109/ICUWB.2012.6340498","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340498","url":null,"abstract":"An ultra-wideband (UWB) spatial filter concept is proposed for one-dimensional time-of-arrival (TOA) localization in a tunnel environment. The spatial filter exploits the fact that electromagnetic waves travel as modes in a tunnel and that these modes can be filtered using a sparse array of antennas. It is shown that the spatial filter delivers centimeter ranging accuracy at moderate to high signal-to-noise ratio (SNR) values even when the tunnel is heavily overmoded. Results generated using an analytical equation model and ray tracing model are used to evaluate the performance of the spatial filter.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"21 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":"125202531","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
60 GHz UWB channel measurement and model 60 GHz UWB信道测量和模型
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340429
D. Cassioli
{"title":"60 GHz UWB channel measurement and model","authors":"D. Cassioli","doi":"10.1109/ICUWB.2012.6340429","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340429","url":null,"abstract":"Measurements of the 60 GHz UWB indoor channel done in a modern office building at the University of L'Aquila, Italy, are presented. The channel sounder is based on a PN-sequence correlation technique with a pulse width of 0.8 ns. Signals are recorded in different locations in line-of-sight and non-line-of-sight scenarios, and for each location the receiver is moved over a grid of 9×9 positions, in order to characterize both the large and the small scale behaviors. Samples of the channel impulse response are recorded at eight different carrier frequencies spanning the bands from 54 to 59 GHz and from 61 to 66 GHz. In this paper we propose an analysis of the experimental data in order to provide models for the large scale behavior of these signals, including a study of the frequency dependence.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"26 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":"117226321","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: 19
A study on SNR estimation for cognitive radio 认知无线电信噪比估计的研究
2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340433
M. Fujii, Yu Watanabe
{"title":"A study on SNR estimation for cognitive radio","authors":"M. Fujii, Yu Watanabe","doi":"10.1109/ICUWB.2012.6340433","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340433","url":null,"abstract":"In detect and avoid techniques of ultra-wide-band systems, there are some avoidance techniques which require information of both a primary signal and a noise level in order to control the transmitted power. Thus, we need to estimate the primary signal power and the noise variance with a high degree of accuracy. In this paper, we propose a new estimation method of primary signal to noise ratio. Our proposed method assumes several models of observed carriers, adopts the maximum likelihood criterion to estimate parameters in each model and selects the most suitable model based on the Akaike information criterion. By computer simulations, we evaluate the proposed estimator and show that the proposed method can estimate the parameters with a high degree of accuracy in several situations.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"13 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":"125766220","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
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