2011 IEEE International Conference on Ultra-Wideband (ICUWB)最新文献_第2页

Coexistence of MB-OFDM UWB with Impulse Radio UWB and other radio systems MB-OFDM UWB与脉冲无线电UWB及其他无线电系统的共存

2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058875

J. Chóliz, Á. Hernández-Solana, A. Sierra, Pierre Cluzeaud

引用次数: 11

Design of an optical UWB pulse leading to an in-band interference tolerant impulse radio UWB transceiver 超宽频光脉冲的设计导致带内干扰容忍脉冲无线电超宽频收发器

2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058841

H. Hedayati, F. Arvani, M. Noshad, V. Mir-Moghtadaei, A. Fotowat-Ahmady

{"title":"Design of an optical UWB pulse leading to an in-band interference tolerant impulse radio UWB transceiver","authors":"H. Hedayati, F. Arvani, M. Noshad, V. Mir-Moghtadaei, A. Fotowat-Ahmady","doi":"10.1109/ICUWB.2011.6058841","DOIUrl":"https://doi.org/10.1109/ICUWB.2011.6058841","url":null,"abstract":"Impulse-radio UWB (IR-UWB) transceivers are quite interesting since they can achieve high data rate while consuming low power. But UNII Band interferers are a serious problem for using the whole spectrum in IR-UWB. Also the short range of UWB is a serious limitation to this technology. Here we have proposed a solution to overcome both of the above mentioned problems. Matched filter concept shapes the output noise according to its spectrum so it can act as a noise filter. Matched filter is implemented in analog domain by designing an all optical UWB pulse featuring notches that can be tuned to a certain frequency. Therefore, any narrowband interferer can be nulled out passing through the matched filter. Also no transmission is done in the spectrum of the narrow band system so no interference is caused by UWB system. On the other hand since the pulse is implemented fully optically, by using UWB over fiber, the UWB range can be greatly extended. Modified Hermite polynomials have unique properties which are used for designing an optical UWB pulse with frequency nulls in its spectrum. For optical implementation of the proposed UWB pulse, Gaussian laser beams are combined to provide a signal with similar properties of Modified Hermite polynomials. The proposed system consists of a single wave length laser source, optical delay, power splitter/combiner, a length of single mode fiber (SMF) and a photo detector (APD). The simulation results shows that for short range communication the proposed architecture can tolerate large in band interferers up to 30 dBm. For long range the tolerance is degraded to 0dBm interferer power which is still quite high.","PeriodicalId":143107,"journal":{"name":"2011 IEEE International Conference on Ultra-Wideband (ICUWB)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134243189","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

Narrowband transmission quality in presence of modified IEEE 802.15.4a UWB signal 在改进的IEEE 802.15.a UWB信号存在下的窄带传输质量

2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058870

J. Sadowski, R. Katulski

引用次数: 1

Low power beamforming RF architecture enabling fine ranging and AOA techniques 低功率波束形成射频架构，实现精细测距和AOA技术

2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058914

F. Bautista, D. Morche, F. Dehmas, G. Masson

引用次数: 5

Application of ultra-fast comparator for UWB pulse time of arrival measurement 超快比较器在超宽带脉冲到达时间测量中的应用

2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058888

J. Kołakowski

引用次数: 10

Performance of IEEE 802.15.4a Systems in the presence of narrowband interference 窄带干扰下IEEE 802.15.a系统的性能

2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058871

Caglar Findikli, S. Erkucuk, M. Çelebi

引用次数: 2

UWB based pre-localization algorithm for aiding target location in a multipath environment 基于超宽带的多路径环境下目标定位辅助算法

2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058813

O. Onalaja, M. Ghavami

{"title":"UWB based pre-localization algorithm for aiding target location in a multipath environment","authors":"O. Onalaja, M. Ghavami","doi":"10.1109/ICUWB.2011.6058813","DOIUrl":"https://doi.org/10.1109/ICUWB.2011.6058813","url":null,"abstract":"When a UWB signal is transmitted, we expect there to be a number of reflected multipath signals because of reflections due to objects in the environment. As a result of these reflected signals, it is impossible to define the ellipses that would be used for target detection as described by existing elliptical based localization schemes when we consider a highly multipath rich environment such as a typical UWB propagation channel unless we are able to manipulate the multipath propagation scenario and reduce it to a two-path propagation one. To tackle this problem, a pre-localization algorithm is proposed. In our proposed algorithm, we use the reflection properties of UWB signals to extract information from the reflected signals in the multipath environment and ultimately reduce the multipath propagation scenario into a two-path one based on these extracted information. Our process of extraction involves the sampling of the received signals at three receivers during regular intervals, correlating the sampled signals with a predefined database of template reflected signals; and finally using a decision engine to determine the signals that would be used for generating the ellipse for target localization. Consequently, we were able to differentiate multipath signals from one another using the relationship between individual multipath signals and their respective angle of incidences; and ultimately select a set of reflected signals that would be suitable for the localization process described by existing elliptical based localization schemes.","PeriodicalId":143107,"journal":{"name":"2011 IEEE International Conference on Ultra-Wideband (ICUWB)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126110983","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: 6

Impulse radio ultra-wideband DC power modeling 脉冲无线电超宽带直流功率建模

2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058897

H. Pflug, J. Romme, K. Philips, H. de Groot

引用次数: 2

Non intrusive electromagnetic sensors for ultra wideband applications using electro-optic and magneto-optic materials 使用电光和磁光材料的超宽带应用的非侵入式电磁传感器

2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058836

A. Garzarella, Dong Wu

引用次数: 4

Pervasive UWB sensor networks for oil exploration 石油勘探用普适超宽带传感器网络

2011 IEEE International Conference on Ultra-Wideband (ICUWB) Pub Date : 2011-10-24 DOI: 10.1109/ICUWB.2011.6058833

S. Savazzi, L. Goratti, D. Fontanella, M. Nicoli, U. Spagnolini

引用次数: 8