2012 9th Workshop on Positioning, Navigation and Communication最新文献_第3页

Cooperative sensor localization with NLOS mitigation using semidefinite programming 基于半定规划的NLOS缓解协同传感器定位

2012 9th Workshop on Positioning, Navigation and Communication Pub Date : 2012-03-15 DOI: 10.1109/WPNC.2012.6268731

R. Vaghefi, R. Buehrer

引用次数: 38

TDOA assisted RSSD localization in UWB TDOA辅助超宽带RSSD定位

2012 9th Workshop on Positioning, Navigation and Communication Pub Date : 2012-03-15 DOI: 10.1109/WPNC.2012.6268764

W. Gerok, J. Peissig, T. Kaiser

引用次数: 11

3D Ray Tracing for device-independent fingerprint-based positioning in WLANs 无线局域网中与设备无关的基于指纹定位的3D光线追踪

2012 9th Workshop on Positioning, Navigation and Communication Pub Date : 2012-03-15 DOI: 10.1109/WPNC.2012.6268748

M. Raspopoulos, C. Laoudias, L. Kanaris, Akis Kokkinis, C. Panayiotou, S. Stavrou

{"title":"3D Ray Tracing for device-independent fingerprint-based positioning in WLANs","authors":"M. Raspopoulos, C. Laoudias, L. Kanaris, Akis Kokkinis, C. Panayiotou, S. Stavrou","doi":"10.1109/WPNC.2012.6268748","DOIUrl":"https://doi.org/10.1109/WPNC.2012.6268748","url":null,"abstract":"We study the use of 3D Ray Tracing (RT) to construct radiomaps for WLAN Received Signal Strength (RSS) fingerprint-based positioning, in conjunction with calibration techniques to make the overall process device-independent. RSS data collection might be a tedious and time-consuming process and also the measured radiomap accuracy and applicability is subject to potential changes in the wireless environment. Therefore, RT becomes a more attractive and efficient way to generate radiomaps. Moreover, traditional fingerprint-based methods lead to radiomaps which are restricted to the device used to generate the radiomap and fail to provide acceptable performance when different devices are considered. We address both challenges by exploiting 3D RT-generated radiomaps and using linear data transformation to match the characteristics of various devices. We evaluate the efficiency of this approach in terms of the time spent to create the radiomap, the amount of data required to calibrate the radiomap for different devices and the positioning error which is compared against the case of using dedicated radiomaps collected with each device.","PeriodicalId":399340,"journal":{"name":"2012 9th Workshop on Positioning, Navigation and Communication","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128953578","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: 44

Localization techniques for traffic applications based on robust WECOLS positioning in wireless sensor networks 基于无线传感器网络鲁棒WECOLS定位的交通应用定位技术

2012 9th Workshop on Positioning, Navigation and Communication Pub Date : 2012-03-15 DOI: 10.1109/WPNC.2012.6268768

Richard Weber, Erik Mademann, O. Michler, S. Zeisberg

引用次数: 5

Velocity estimation of cellular terminals in urban environment using ray tracing 城市环境中基于光线追踪的蜂窝终端速度估计

2012 9th Workshop on Positioning, Navigation and Communication Pub Date : 2012-03-15 DOI: 10.1109/WPNC.2012.6268766

A. Freedman

引用次数: 2

Improving sparse organic WiFi localization with inertial sensors 利用惯性传感器改进稀疏有机WiFi定位

2012 9th Workshop on Positioning, Navigation and Communication Pub Date : 2012-03-15 DOI: 10.1109/WPNC.2012.6268734

Johannes Schmid, Tobias Gädeke, Dorothy W. Curtis, J. Ledlie

{"title":"Improving sparse organic WiFi localization with inertial sensors","authors":"Johannes Schmid, Tobias Gädeke, Dorothy W. Curtis, J. Ledlie","doi":"10.1109/WPNC.2012.6268734","DOIUrl":"https://doi.org/10.1109/WPNC.2012.6268734","url":null,"abstract":"Personal location discovery and navigation within buildings has become an important research topic in the last years. One method to determine one's current position based on mobile-devices is to compare the set of available WiFi access points (APs), i.e. the fingerprint of a given space, to a previously collected database. In this context, this paper addresses the inherent problem of such systems that this fingerprint database needs to be established beforehand. Thus, situations can occur where a building is only partially represented in the database and localization can only be provided in a subset of the spaces of the building. This problem occurs especially in crowd-sourcing (organic) approaches where users consecutively contribute location-binds. In these situations an additional system is needed to provide localization. We present a first study on the fusion of pedestrian dead reckoning (PDR) from inertial sensors with position estimates from a WiFi localization system. We outline a possible design of particle filter and analyze its behavior on experimental data. We conclude that the outlined method can help to improve WiFi localization and is especially useful within crowd-sourcing environments.","PeriodicalId":399340,"journal":{"name":"2012 9th Workshop on Positioning, Navigation and Communication","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129564387","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: 7

Wireless synchronization in time difference of arrival based real time locating systems 基于到达时差的实时定位系统的无线同步

2012 9th Workshop on Positioning, Navigation and Communication Pub Date : 2012-03-15 DOI: 10.1109/WPNC.2012.6268763

R. Hach, A. Rommel

引用次数: 3

The effect of human-body shadowing on indoor UWB TOA-based ranging systems 人体阴影对室内超宽带tob测距系统的影响

2012 9th Workshop on Positioning, Navigation and Communication Pub Date : 2012-03-15 DOI: 10.1109/WPNC.2012.6268751

Yakup Kilic, Ameenulla J. Ali, A. Meijerink, M. Bentum, W. Scanlon

{"title":"The effect of human-body shadowing on indoor UWB TOA-based ranging systems","authors":"Yakup Kilic, Ameenulla J. Ali, A. Meijerink, M. Bentum, W. Scanlon","doi":"10.1109/WPNC.2012.6268751","DOIUrl":"https://doi.org/10.1109/WPNC.2012.6268751","url":null,"abstract":"Because of its superior time resolution, ultra-wide bandwidth (UWB) transmission can be a highly accurate technique for ranging in indoor localization systems. Nevertheless, the presence of obstructions may deteriorate the ranging performance of the system. Indoor environments are often densely populated with people. However, th e effect of the human body presence has been scarcely investigated so far within the UWB ranging context. In this work, we investigate this effect by conducting UWB measurements and analyzing the ranging performance of the system. Two measurement campaigns were performed in the 3-5.5 GHz band, in an anechoic chamber and a laboratory environment. The range estimates were obtained by employing the threshold-based first peak detection technique. Analysis results revealed that the human body significantly attenuates the direct-path signal component. On the other hand, in this study it does not introduce a significant range error since the length difference between the diffracted paths around the body and the direct-path is less than the spatial resolution of the measurement setup.","PeriodicalId":399340,"journal":{"name":"2012 9th Workshop on Positioning, Navigation and Communication","volume":"285 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132519045","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: 21

Hidden Markov Model based mobility learning fo improving indoor tracking of mobile users 基于隐马尔可夫模型的移动学习改进室内移动用户跟踪

2012 9th Workshop on Positioning, Navigation and Communication Pub Date : 2012-03-15 DOI: 10.1109/WPNC.2012.6268746

Troels Laursen, N. B. Pedersen, J. Nielsen, T. Madsen

引用次数: 9

Localization scenario with active sensing for range measurements 具有主动感知距离测量的定位方案

2012 9th Workshop on Positioning, Navigation and Communication Pub Date : 2012-03-15 DOI: 10.1109/WPNC.2012.6268756

M. Romanovas, J. Trapnauskas, L. Klingbeil, M. Traechtler, Y. Manoli

引用次数: 1