2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)最新文献_第8页

A practical 50∶1 bandwidth PCB-LPDA antenna for MeerKAT RFI studies 用于MeerKAT RFI研究的实用50∶1带宽PCB-LPDA天线

2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2012-10-08 DOI: 10.1109/APWC.2012.6324946

P. G. Wiid, K. D. Palmer, P. S. van der Merwe, H. Reader

引用次数: 6

A multipurpose node for low cost wireless sensor network 一种低成本无线传感器网络的多用途节点

2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2012-10-08 DOI: 10.1109/APWC.2012.6324911

O. Rorato, S. Bertoldo, C. Lucianaz, M. Allegretti, G. Perona

{"title":"A multipurpose node for low cost wireless sensor network","authors":"O. Rorato, S. Bertoldo, C. Lucianaz, M. Allegretti, G. Perona","doi":"10.1109/APWC.2012.6324911","DOIUrl":"https://doi.org/10.1109/APWC.2012.6324911","url":null,"abstract":"In recent years Wireless Sensor Networks (WSNs) have attracted an increasing attention because of the large number of potential applications. They are used for collecting, storing and sharing data, for monitoring application, surveillance purposes and much more. Taking into account such multipurpose applications, a new experimental electronic board has been designed to be used specifically as a multipurpose WSN node. The board has been completely designed as an open system in order to be configured by only varying the firmware on the microcontroller to be connected with different types of sensors, such as, for example, solid state tri-axial accelerometer, analog temperature sensors, GNSS receivers, etc... The board allow different interfaces and is equipped with a recovery system via a watchdog chip which continuously monitor the onboard microcontroller. A free open source operative system has been ported on the microcontroller in order to give greater flexibility to the node, and to perform multi tasking operations. Low power consumptions together with its compact size, and its multiple functionalities made the board perfectly suited as a multipurpose WSN node. The boards have been already employed in two installed WSN: a GPS monitoring network and an WSN designed as anti-theft alarm system for photovoltaic panels.","PeriodicalId":6393,"journal":{"name":"2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87084077","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: 17

Planar slotted waveguide arrays for marine applications 船用平面开槽波导阵列

2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2012-10-08 DOI: 10.1109/APWC.2012.6324960

W. Steyn

引用次数: 0

Ultra-wideband active array imaging for biomedical diagnostics 用于生物医学诊断的超宽带有源阵列成像

2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2012-10-08 DOI: 10.1109/APWC.2012.6324920

M. Hein, M. Helbig, M. Kmec, J. Sachs, F. Scotto di Clemente, R. Stephan, M. Hamouda, T. Ussmueller, R. Weigel, M. Robens, R. Wunderlich, S. Heinen

引用次数: 11

Borehole radar imaging in tactical support of miners working in very narrow stopes 钻孔雷达成像技术在极窄采场作业中的战术支持

2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2012-10-08 DOI: 10.1109/APWC.2012.6324948

I. Mason, J. Cloete, K. D. Palmer

引用次数: 7

Research on statistical parameters of interference for digital radio 数字无线电干扰统计参数研究

2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2012-10-08 DOI: 10.1109/APWC.2012.6324967

Jinbao Zhang, Y. Wen, Kesheng Zhou, Z. Tan, Yun Zhu

引用次数: 0

Design and development of an 8 to 12 GHz circularly polarized two element horn antenna array with high isolation 8 ~ 12ghz高隔离圆极化双元喇叭天线阵列的设计与研制

2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2012-10-08 DOI: 10.1109/APWC.2012.6324981

J. B. du Toit, D. Baker, A. J. Booysen

引用次数: 1

On the use of surface plasmons for the design of WB leaky ave antennas 表面等离子体在宽频漏波天线设计中的应用

2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2012-10-08 DOI: 10.1109/APWC.2012.6324955

O. Quevedo–Teruel, Y. Hao

引用次数: 1

Channel fading statistics in high-speed mobile environment 高速移动环境下信道衰落统计

2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2012-10-08 DOI: 10.1109/APWC.2012.6324963

Y. Wen, Yunshuang Ma, Xiaoyan Zhang, Xiaojun Jin, Fenglan Wang

{"title":"Channel fading statistics in high-speed mobile environment","authors":"Y. Wen, Yunshuang Ma, Xiaoyan Zhang, Xiaojun Jin, Fenglan Wang","doi":"10.1109/APWC.2012.6324963","DOIUrl":"https://doi.org/10.1109/APWC.2012.6324963","url":null,"abstract":"In this paper, based on the measured data at Wuhan-Guangzhou high speed railway, the statistics characteristics of high speed mobile fading channel including long-term and short-term fading in this environment are presented. The measurement campaigns were conducted at GSM-R downlink band. The experimental data was analyzed to provide path loss model and short-term fading statistics including probability density functions (PDF) of signal amplitude, delay statistics, number of paths and path power statistics. From these statistics, it is shown that the path loss index at this railway area is n=2~5 with standard deviation ranging from 3 to 6dB; the test PDF of the short-term fading in such channels approximately fit Nakagami distributions better; the cumulative density functions of average delay and root mean square delay demonstrated that the mean and root mean square delay are not larger than respectively 1.37μs and 1.69μs and maximum delays less than 6.7μs occur most frequently. At last, the PDFs of paths and PDFs of relative amplitude of paths with different threshold levels were computed and drawn.","PeriodicalId":6393,"journal":{"name":"2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90085680","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: 9

A dual-polarized ridged horn antenna 双极化脊状喇叭天线

2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC) Pub Date : 2012-10-08 DOI: 10.1109/APWC.2012.6324930

P. H. van der Merwe, J. Odendaal, J. Joubert

引用次数: 2