2012 IEEE International Conference on Ultra-Wideband最新文献_第9页

Motion detection In-Vivo by multi-channel ultrawideband radar 基于多通道超宽带雷达的活体运动检测

2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340451

O. Kosch, F. Thiel, F. Seifert, J. Sachs, M. Hein

{"title":"Motion detection In-Vivo by multi-channel ultrawideband radar","authors":"O. Kosch, F. Thiel, F. Seifert, J. Sachs, M. Hein","doi":"10.1109/ICUWB.2012.6340451","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340451","url":null,"abstract":"Remote sensing of body and inner organ motion by ultra-wideband radar is a promising alternative to electrocardiogram (ECG) based gating of several diagnostic imaging and image guided therapy modalities, e.g. cardiac magnetic resonance imaging (MRI) and high energy particle therapy. In this paper, we present a noncontact approach for the detection of cardiac mechanics by means of multi-channel UWB radar sensors. To extract the required position information from UWB radar for cardiac MRI the decomposition of respiratory and cardiac motions is performed by applying a blind-source separation method based on several time-delayed second-order correlation matrices to decompose the UWB signals and extract movements of cardiac and respiratory landmarks. We compared the time evolution of these landmarks to the signals of simultaneously measured ECG's demonstrating the strong correlation between cardiac UWB and ECG signals. Furthermore, we implemented a fast 1D MR imaging method in a 3 tesla MR scanner to extract true inner organ landmark movements in real time and present these comparisons with simultaneously acquired multi-channel UWB data.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"8 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":"114876590","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

Three centuries of UWB antenna development 三个世纪的超宽带天线发展历程

2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340483

H. Schantz

{"title":"Three centuries of UWB antenna development","authors":"H. Schantz","doi":"10.1109/ICUWB.2012.6340483","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340483","url":null,"abstract":"This paper provides a historical overview of ultrawideband (UWB) antennas. Early radio was narrowband in conception, but UWB in practice due to various technical limitations. Oliver Lodge pioneered UWB antenna engineering in the nineteenth century with his invention of both the biconical and bowtie antennas, and J.C. Bose demonstrated the first horn antennas in 1897. These nineteenth century spark-gap UWB antennas were largely forgotten until the 1930s and 1940s when advances in RF technology made short wavelength compact UWB antennas more practical. For lack of wide-scale implementation, many of these mid-century designs were forgotten in turn. By the closing decades of the twentieth century, UWB antennas were still considered “the main limiting factor of a UWB system.” A third century of development kicked off (more-or-less) with the FCC's authorization of UWB wireless systems in 2002. A host of antenna designers re-discovered or reinvented twentieth century designs and advanced the UWB antenna arts further with innovations like compact planar implementations, UWB patch antennas, embedded UWB antennas, and spectral-filtered or frequency-notched designs. The three centuries of UWB antenna development have been characterized by the failure of successive generations of antenna designers to benefit from the lessons of earlier pioneers.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"53 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":"131936865","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: 26

On the use of spiral antennas in ultra-wideband communication links 螺旋天线在超宽带通信链路中的应用

2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340485

M. Elmansouri, D. Filipović

引用次数: 2

Compressed Sensing for UWB medical radar applications 用于超宽带医疗雷达的压缩传感

2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340444

T. Thiasiriphet, M. Ibrahim, J. Lindner

引用次数: 10

Framework of belief condensation filtering and deterministic discrete filters 信念凝聚滤波和确定性离散滤波的框架

2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340469

S. Mazuelas, Yuan Shen, M. Win

引用次数: 2

Experimental active antenna measurement setup for UWB breast cancer detection 用于超宽带乳腺癌检测的实验有源天线测量装置

2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340449

M. Helbig, M. Hein, R. Herrmann, M. Kmec, J. Sachs, K. Schilling, F. Clemente, I. Hilger, K. Dahlke, P. Rauschenbach

引用次数: 6

Narrowband interference mitigation in UWB communication with energy detector 能量探测器在超宽带通信中的窄带干扰抑制

2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340470

Stephane Mebaley Ekome, G. Baudoin, M. Villegas, J. Schwoerer

引用次数: 20

A reconfigurable impulse radio transmitter 一种可重构脉冲无线电发射机

2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340465

A. Ott, C. Eisner, T. Eibert

引用次数: 1

Reflectarray antennas for space applications 用于空间应用的反射天线

2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340389

A. Elsherbeni, P. Nayeri, Fan Yang

引用次数: 8

Particle swarm intelligence use in feasible design target space of a microwave transistor for a wide-band output-stage requirements 将粒子群智能应用于微波晶体管宽带输出级目标空间的可行设计

2012 IEEE International Conference on Ultra-Wideband Pub Date : 2012-11-12 DOI: 10.1109/ICUWB.2012.6340403

S. Demirel, F. Güneş, H. Torpi

{"title":"Particle swarm intelligence use in feasible design target space of a microwave transistor for a wide-band output-stage requirements","authors":"S. Demirel, F. Güneş, H. Torpi","doi":"10.1109/ICUWB.2012.6340403","DOIUrl":"https://doi.org/10.1109/ICUWB.2012.6340403","url":null,"abstract":"In this article, the feasible design target space is determined for the output stage-requirements of an ultra-wide band low-noise front end design using a single transistor. For this purpose, a performance characterization of a microwave transistor is achieved to deliver maximum output power subject to the required noise figure Freq≥ Fmin, using particle swarm intelligence as a comparatively simple and efficient optimization tool. To achieve this, transducer gain of the transistor is maximized as satisfying the physical realization conditions in the case that the input is terminated for the required noise figure Freq≥ Fmin and the output matched. Thus, the compromise relations between the maximum gain GTmax and the noise figure F are obtained as the function of the operation frequency and/or input VSWR taking the bias condition (VDS, IDS) as parameters together with the corresponding source ZS and load ZL terminations for a selected transistor as compared with the analytical counterparts obtained using the microwave, linear circuit and noise theories and an excellent agreement is observed. This type of representation of performance can provide a higher tool to overview all possible designs in cases where output power or noise figure is at a premium.","PeriodicalId":260071,"journal":{"name":"2012 IEEE International Conference on Ultra-Wideband","volume":"6 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":"128486872","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