IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium最新文献_第6页

A novel method for metropolitan-scale Wi-Fi localization based on public telephone booths 基于公共电话亭的城域Wi-Fi定位新方法

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507303

H. Tian, Linyuan Xia, E. Mok

{"title":"A novel method for metropolitan-scale Wi-Fi localization based on public telephone booths","authors":"H. Tian, Linyuan Xia, E. Mok","doi":"10.1109/PLANS.2010.5507303","DOIUrl":"https://doi.org/10.1109/PLANS.2010.5507303","url":null,"abstract":"The ability of low-cost mobile devices to quickly and accurately localize their geolocation is extremely important for pedestrian navigation and location-based services (LBS). Traditional approaches typically rely on global information provided by Global Navigation Satellite System (GNSS), beacons, or the high-cost tracking system. Weak signals and slow time to first fix are two limitations of GNSS, other sensors such as inertial measurement unit (IMU) devices will increase the hardware cost and need a substantially more complicated hybrid algorithm. Wi-Fi localization now regarded as a cost-effective way for indoor and outdoor positioning, it's mainly based on received signal strength indicator (RSSI) measurements, and there are many commercial products like Skyhook's Wi-Fi positioning technology. But the Wi-Fi database is collected through wardriving and it only provides a coarse location with 30–50m accuracy. In this paper, we present a novel method for metropolitan-scale Wi-Fi localization in Hong Kong. Our PCCW telephone booth Wi-Fi database is gathered through precise measurement based on the public telephone booths information, including the media access control address (MAC address), service set identifier (SSID) and coordinates of the Wi-Fi devices installed in the public telephone booths. We also propose a path loss model in the typical urban environment for improved accuracy in the relationship between RSSI and distance. Experimental results demonstrate that the Wi-Fi installed in the public telephone booths can be effectively used for localization in Hong Kong. The cell identification (Cell-ID) rank approach can generally achieve better than 40m accuracy. The triangulation approach following the Cell-ID rank approach can improve the Wi-Fi positioning accuracy to better than 10m level, if the effective range for path loss model is less than 30m, and under good triangulation geometry.","PeriodicalId":94036,"journal":{"name":"IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87478028","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

GPS experiment on the Balloon-based Operation Vehicle 基于气球的操作飞行器的GPS实验

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507346

P. Buist, S. Verhagen, T. Hashimoto, S. Sawai, S. Sakai, N. Bando, S. Shimizu

引用次数: 1

Analytical Resolution Method based on ambiguity function for attitude determination 基于模糊函数的姿态确定解析解析方法

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507337

Boxiong Wang, X. Zhan, Yan-hua Zhang

引用次数: 2

A repeater-based localization system with wideband signalling 基于中继器的宽带定位系统

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507254

Junjie Liu

引用次数: 0

Design of hybrid long integration in Geo-location in presence of CCI 存在CCI的地理定位混合长集成设计

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507276

Seung-Hun Song, Ji-Won Park, T. Sung

{"title":"Design of hybrid long integration in Geo-location in presence of CCI","authors":"Seung-Hun Song, Ji-Won Park, T. Sung","doi":"10.1109/PLANS.2010.5507276","DOIUrl":"https://doi.org/10.1109/PLANS.2010.5507276","url":null,"abstract":"Due to cell planning in a cellular communication network, it is difficult for a mobile user in a cell to get ranging measurements from other neighboring cells. Consequently, it is necessary to enhance signal sensitivity using long integration techniques so that the user position is obtained by trilateration. In order to maximize integration gain in coherent/noncoherent hybrid long integration, it is desirable to make SNR (signal to noise ratio) after coherent integration become as large as possible. Because SIR (signal to interference ratio) is not improved by the long integration, however, it is needed to mitigate CCI (Co-Channel Interference) so that the resultant hearability can be enhanced for weak signals. This paper presents a hybrid long integration scheme in presence of CCI. SNIR (signal to noise plus interference ratio) is employed to explain the loss induced by interference as well as noise. Together with interference cancellation and residual frequency estimation technique, design procedure of hybrid long integration is proposed to maximize SNIR. Simulation results show that hearability is greatly improved at most of cell coverage when the proposed method is used.","PeriodicalId":94036,"journal":{"name":"IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79553607","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

Attitude bootstrapped multi-frequency relative positioning 姿态自引导的多频相对定位

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507315

P. Buist, P. Teunissen, G. Giorgi, S. Verhagen

{"title":"Attitude bootstrapped multi-frequency relative positioning","authors":"P. Buist, P. Teunissen, G. Giorgi, S. Verhagen","doi":"10.1109/PLANS.2010.5507315","DOIUrl":"https://doi.org/10.1109/PLANS.2010.5507315","url":null,"abstract":"Normally, dual frequency observations are required for precise relative positioning, but under critical circumstances even with multi-frequency observations a reliable solution might not always be available. We have developed a method to rigorously integrate multiantenna data at individual platforms such that the attitude solution can be used to enhance relative positioning. Aim of the method is to instantaneously fix the ambiguities of the unconstrained baselines between platforms, whereas several epochs of data might be required with existing methods where not all available information is applied. We will analyze single epoch success rates as the most challenging application. The difference in performance for the methods for single epoch solutions, is a good indication of the strength of the underlying models, and therefore the results can also indicate how much a multi-epoch solution would benefit from the integrated approaches. This contribution will show that the new method improves the relative positioning performance, both single and dual frequency, of moving platforms significantly. The probability of correct instantaneous ambiguity resolution can be increased up to 37% for single frequency relative positioning. For dual frequency applications with at least three single frequency and one dual frequency antenna at each platform, an empirical success rate of more than 95% is achievable even with large code noise levels. An additional benefit of the method is an improved robustness and precision of the baseline estimation.","PeriodicalId":94036,"journal":{"name":"IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78682484","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

Evolutionary Navigation Systems 进化导航系统

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507216

J. Floch, D. Oskam, David Fernandez, M. Schoenhuber, M. Ouedraogo, S. Vaccaro, Daniel Llorens Udel Rio, F. A. Fernández

引用次数: 3

An insider view on tracking loops: A novel ultra-tight GNSS/INS hybridization approach 跟踪回路的内部观点:一种新的超紧密GNSS/INS杂交方法

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507194

C. Palestini, L. Deambrogio, F. Bastia, G. Corazza

引用次数: 2

Precision multi-sensor optical navigation test-bed utilizing ground-truthed data set 利用实测数据集的精密多传感器光学导航试验台

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507285

J. Touma, T. Klausutis, Michelle Fessenden, Carolyn New, David D. Diel

{"title":"Precision multi-sensor optical navigation test-bed utilizing ground-truthed data set","authors":"J. Touma, T. Klausutis, Michelle Fessenden, Carolyn New, David D. Diel","doi":"10.1109/PLANS.2010.5507285","DOIUrl":"https://doi.org/10.1109/PLANS.2010.5507285","url":null,"abstract":"This work describes a rich set of navigation data that has been collected by AFRL and an object-oriented framework that makes both the data and relevant processing algorithms available to the research community. Both aerial and ground vehicle platforms were employed, exposing a single sensor suite to a variety of conditions relevant to civil and military applications, including urban and rural terrain and varied time-of-day. The sensor package includes four visible cameras, two LWIR cameras, inertial measurement units ranging from navigation grade, tactical grade and industrial grade. A GINS is utilized to establish platform attitude and position truth. The raw GPS signals are also collected. All this data is synchronously time-stamped with reference to a unified reference time. Of particular interest to the research community is the use of visual sensors to navigate in GNSS-limited environments, especially in cases where the navigation solution must exhibit dynamic continuity. Our data delivery framework goes beyond standardizing data formats by providing a means to standardize the application of relevant processing algorithms. This plays a critical role in integrating data from multiple sensors without violating dynamic constraints. In addition, the framework can be viewed as a testbed for user contributed algorithms, which will help system integrators to explore the trade space of both sensors and algorithms.","PeriodicalId":94036,"journal":{"name":"IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77808051","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

A comprehensive approach for optimizing ToA-localization in harsh industrial environments 在恶劣工业环境中优化toa定位的综合方法

IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium Pub Date : 2010-05-04 DOI: 10.1109/PLANS.2010.5507255

A. Lewandowski, C. Wietfeld

{"title":"A comprehensive approach for optimizing ToA-localization in harsh industrial environments","authors":"A. Lewandowski, C. Wietfeld","doi":"10.1109/PLANS.2010.5507255","DOIUrl":"https://doi.org/10.1109/PLANS.2010.5507255","url":null,"abstract":"Real-life industrial environments pose a challenge for today's radio-based localization systems, as the radio channel is highly affected by the multiple interference present in the environment. Therefore, this paper presents a solution for generating Weighted Multilateration Position Estimation based on the RSSI (Received Signal Strength Indicator) for ToA (Time of Arrival) ranging measurements to enhance the fault tolerance, reduce the self-interference of the ranging system and finally enhance the accuracy of the position estimation. A coordinate descent algorithm for optimal anchor placement is demonstrated in this paper, which is based on results of 3D ray tracing. The applied 3D environment model is highly sophisticated, as it was generated by 3D laser scanning for gauging. In a final optimization step, power level adjustment is shown to further enhance the accuracy of the localization system. Concluding, a performance evaluation based on simulations, numerical optimization and experimental measurements in the industrial target environment will demonstrate the improvements of our comprehensive approach in terms of accuracy and robustness.","PeriodicalId":94036,"journal":{"name":"IEEE/ION Position Location and Navigation Symposium : [proceedings]. IEEE/ION Position Location and Navigation Symposium","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76548584","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: 24