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2019 16th Workshop on Positioning, Navigation and Communications (WPNC)最新文献

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A 400 Msps SDR platform for prototyping accurate wideband ranging techniques 一个400 Msps SDR平台，用于精确宽带测距技术的原型设计
2019 16th Workshop on Positioning, Navigation and Communications (WPNC) Pub Date : 2019-10-01 DOI: 10.1109/WPNC47567.2019.8970251
C. Diouf, G. Janssen, T. Kazaz, H. Dun, Farnaz Chamanzadeh, C. Tiberius
{"title":"A 400 Msps SDR platform for prototyping accurate wideband ranging techniques","authors":"C. Diouf, G. Janssen, T. Kazaz, H. Dun, Farnaz Chamanzadeh, C. Tiberius","doi":"10.1109/WPNC47567.2019.8970251","DOIUrl":"https://doi.org/10.1109/WPNC47567.2019.8970251","url":null,"abstract":"In order to validate and demonstrate newly developed ranging techniques, a flexible test platform for signal acquisition enabling offline signal processing is generally needed. Developing such a platform becomes challenging when working with wideband (> 100MHz) signals due to the critical timing, the very high sampling rates and the huge data throughput involved. In this paper, we introduce an Ettus X310 SDR platform using custom designed logic allowing for dual-channel 400 Msps data transmission and acquisition for centimeter level ranging applications. Furthermore, we present initial measurement results as a benchmark of the platform, which show that the time delay of a 10 m cable can be estimated with high accuracy, in the order of 50 ps.","PeriodicalId":284815,"journal":{"name":"2019 16th Workshop on Positioning, Navigation and Communications (WPNC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121933238","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: 10
Precise Probabilistic Grid Positioning based on GNSS Pseudoranges and Digital Elevation Models 基于GNSS伪距和数字高程模型的精确概率网格定位
2019 16th Workshop on Positioning, Navigation and Communications (WPNC) Pub Date : 2019-10-01 DOI: 10.1109/WPNC47567.2019.8970176
Paul Schwarzbach, Andrea Jung, Richard Weber, O. Michler
{"title":"Precise Probabilistic Grid Positioning based on GNSS Pseudoranges and Digital Elevation Models","authors":"Paul Schwarzbach, Andrea Jung, Richard Weber, O. Michler","doi":"10.1109/WPNC47567.2019.8970176","DOIUrl":"https://doi.org/10.1109/WPNC47567.2019.8970176","url":null,"abstract":"Future applications for connected and automated driving depend on high-precision, lane selective positioning especially in dense urban environments. Estimating global user position is oftentimes based on Global Navigation Satellite Systems (GNSS), but stand-alone GNSS positioning methods do not meet the necessary requirements in terms of accuracy and robustness. To achieve higher accuracies, additional sensor information, e.g. digital maps (DM), is usually incorporated. Baseline state of the art GNSS positioning is based on deterministic and probabilistic estimation methods which do not integrate a-priori map data in a tightly coupled manner but rather perform a map matching after the GNSS position was estimated. The work presented in this paper provides a proof of concept of a novel likelihood based snapshot Probability Grid Positioning (PGP) approach for low-cost GNSS receivers using a digital elevation model (DEM). The proposed method is described in detail and validated in a real word, dynamic measurement scenario. The presented approach is compared with a conventional positioning method.","PeriodicalId":284815,"journal":{"name":"2019 16th Workshop on Positioning, Navigation and Communications (WPNC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117071448","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
5G Positioning - A Machine Learning Approach 5G定位——一种机器学习方法
2019 16th Workshop on Positioning, Navigation and Communications (WPNC) Pub Date : 2019-10-01 DOI: 10.1109/WPNC47567.2019.8970186
Magnus Malmström, I. Skog, S. M. Razavi, Yuxin Zhao, F. Gunnarsson
{"title":"5G Positioning - A Machine Learning Approach","authors":"Magnus Malmström, I. Skog, S. M. Razavi, Yuxin Zhao, F. Gunnarsson","doi":"10.1109/WPNC47567.2019.8970186","DOIUrl":"https://doi.org/10.1109/WPNC47567.2019.8970186","url":null,"abstract":"In urban environments, cellular network-based positioning of user equipment (ue) is a challenging task, especially in frequently occurring non-line-of-sight (nlos) conditions. This paper investigates the use of two machine learning methods – neural networks and random forests – to estimate the position of ue in nlos using best received reference signal beam power measurements. We evaluated the suggested positioning methods using data collected from a fifth-generation cellular network (5g) testbed provided by Ericsson. A statistical test to detect nlos conditions with a probability of detection that is close to 90% is suggested. We show that knowledge of the antenna are crucial for accurate position estimation. In addition, our results show that even with a limited set of training data and one 5g transmission point, it is possible to position ue within 10 meters with 80% accuracy.","PeriodicalId":284815,"journal":{"name":"2019 16th Workshop on Positioning, Navigation and Communications (WPNC)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116715923","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: 23
Periodic Ambiguity Function as a Tool in Designing Periodic Synchronization Preamble 周期模糊函数在周期同步序文设计中的应用
2019 16th Workshop on Positioning, Navigation and Communications (WPNC) Pub Date : 2019-10-01 DOI: 10.1109/WPNC47567.2019.8970181
I. Dotlic, Michael McLaughlin
{"title":"Periodic Ambiguity Function as a Tool in Designing Periodic Synchronization Preamble","authors":"I. Dotlic, Michael McLaughlin","doi":"10.1109/WPNC47567.2019.8970181","DOIUrl":"https://doi.org/10.1109/WPNC47567.2019.8970181","url":null,"abstract":"The paper introduces the periodic ambiguity function (PAF) of the preamble code as a tool in designing periodic synchronization preamble. It is shown that in the considered low-complexity receiver architecture characteristics of the PAF, namely, sidelobes peak level and main lobe phase, play an important role in the quality of the channel estimation. Furthermore, it is shown that these PAF characteristics vary considerably with the circular shift of the preamble code and care should be taken when selecting both preamble codes and corresponding circular shifts. This is done on an example of the preamble design for high pulse repetition frequency (HPRF) mode of the upcoming IEEE 802.15.4z standard amendment for enhanced ultra wideband (UWB) physical layers (PHYs) and associated ranging techniques. Similar analysis is carried-out on the preamble codes already specified in the high-rate pulse repetition frequency (HRP) UWB PHY of the IEEE 802.15.4-2015 standard.","PeriodicalId":284815,"journal":{"name":"2019 16th Workshop on Positioning, Navigation and Communications (WPNC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130606858","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
Robust Elliptic Localization Using Worst-Case Formulation and Convex Approximation 基于最坏情况公式和凸逼近的鲁棒椭圆定位
2019 16th Workshop on Positioning, Navigation and Communications (WPNC) Pub Date : 2019-10-01 DOI: 10.1109/WPNC47567.2019.8970258
Wenxin Xiong, H. So, C. Schindelhauer, Johannes Wendeberg
{"title":"Robust Elliptic Localization Using Worst-Case Formulation and Convex Approximation","authors":"Wenxin Xiong, H. So, C. Schindelhauer, Johannes Wendeberg","doi":"10.1109/WPNC47567.2019.8970258","DOIUrl":"https://doi.org/10.1109/WPNC47567.2019.8970258","url":null,"abstract":"Recent years have seen a rapid growth in research on elliptic localization, due to its widespread usage in systems such as multiple-input multiple-output radar and multistatic sonar. However, most of the algorithms are devised under line-of-sight propagation, while a number of those existing non-line-of-sight (NLOS) mitigation schemes for elliptic localization are highly case-dependent. This paper addresses the problem of elliptic localization in adverse environments without assumptions about distribution/statistics of errors and NLOS status. To achieve robustness towards NLOS bias, we resort to the worst-case least squares formulation which requires only a bound on the errors. We then apply certain approximations to the resultant intractable constrained minimax optimization problem, and finally relax it into a readily solvable convex optimization problem. Simulation results show that our method can outperform several existing non-robust approaches in terms of positioning accuracy, and achieve comparable performance to a robust estimator with a lower computational cost.","PeriodicalId":284815,"journal":{"name":"2019 16th Workshop on Positioning, Navigation and Communications (WPNC)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133894095","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: 3
3D Performance Analysis of a UWB Positioning System in a Dynamic Robotic Scenario 动态机器人场景下超宽带定位系统的三维性能分析
2019 16th Workshop on Positioning, Navigation and Communications (WPNC) Pub Date : 2019-10-01 DOI: 10.1109/WPNC47567.2019.8970183
Markus Pichler-Scheder, Klaus Pendl, Richard Schmidt, Michael Petruzelka, Günther Mühlberger
{"title":"3D Performance Analysis of a UWB Positioning System in a Dynamic Robotic Scenario","authors":"Markus Pichler-Scheder, Klaus Pendl, Richard Schmidt, Michael Petruzelka, Günther Mühlberger","doi":"10.1109/WPNC47567.2019.8970183","DOIUrl":"https://doi.org/10.1109/WPNC47567.2019.8970183","url":null,"abstract":"Indoor positioning is gaining increasing attention in the industrial context to track vehicle, robot, or operator motions. The availability of low-cost ultra-wideband RF localization chips facilitates highly accurate 3D position estimation even in challenging metallic environments. In this work, we present an indoor positioning setup based on the Decawave DW1000 chip and 3D estimation results in a dynamic industrial robotic scenario. A performance analysis of achieved estimation accuracies from two different modes of operation is compared to the theoretical limits given by the Cramér-Rao lower bound.","PeriodicalId":284815,"journal":{"name":"2019 16th Workshop on Positioning, Navigation and Communications (WPNC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124826745","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
System-level Simulation of Cooperative Sensor Data Fusion Strategies for Improved Vulnerable Road Users Safety 提高弱势道路使用者安全的协同传感器数据融合策略的系统级仿真
2019 16th Workshop on Positioning, Navigation and Communications (WPNC) Pub Date : 2019-10-01 DOI: 10.1109/WPNC47567.2019.8970187
A. P. D. Silva, Imane Horiya Brahmi, S. Leirens, B. Denis
{"title":"System-level Simulation of Cooperative Sensor Data Fusion Strategies for Improved Vulnerable Road Users Safety","authors":"A. P. D. Silva, Imane Horiya Brahmi, S. Leirens, B. Denis","doi":"10.1109/WPNC47567.2019.8970187","DOIUrl":"https://doi.org/10.1109/WPNC47567.2019.8970187","url":null,"abstract":"Cooperation between vehicles and/or with static elements of the road infrastructure enables a wide number of applications and services, such as traffic monitoring and prediction, localization and mapping, or novel safety approaches for vulnerable road users. For instance, relying on on-board sensors, on conventional navigation systems, and on V2X wireless connectivity, vehicles can represent geo-tagged measurements (e.g., LiDAR) in the form of local occupancy grid maps accounting for the presence of obstacles. The latter maps can be subsequently shared, either directly (e.g., with other fellow vehicles around) or via a centralized entity (e.g., edge cloud…). Through cooperative fusion, equipped vehicles thus contribute to elaborate a global view of the physical environment.In this paper, we first describe a flexible end-to-end system simulator that can evaluate such cooperative mapping strategies in complex road driving environments. The overall simulation flow spans from sensor and V2X connectivity abstractions up to fusion algorithms running at the application level. We then present a few illustrating simulation results in a smart intersection scenario, confirming the importance of V2X-aided cooperation to enhance the physical perception of standalone vehicles in terms of both coverage and detection performances.","PeriodicalId":284815,"journal":{"name":"2019 16th Workshop on Positioning, Navigation and Communications (WPNC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129909082","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
The Statistical Analysis of Noise in Triaxial Magnetometers and Calibration Procedure 三轴磁强计噪声的统计分析及校正程序
2019 16th Workshop on Positioning, Navigation and Communications (WPNC) Pub Date : 2019-10-01 DOI: 10.1109/WPNC47567.2019.8970255
Nhan Nguyen, P. Müller, J. Collin
{"title":"The Statistical Analysis of Noise in Triaxial Magnetometers and Calibration Procedure","authors":"Nhan Nguyen, P. Müller, J. Collin","doi":"10.1109/WPNC47567.2019.8970255","DOIUrl":"https://doi.org/10.1109/WPNC47567.2019.8970255","url":null,"abstract":"This paper examines the statistical behaviour of noise in triaxial sensors, particularly magnetometers. It is shown by statistical test that the sensor noise does not follow a Normal distribution as is commonly assumed. Beside noise, other sources of error in readings of magnetometers are discussed. The combined effects of errors are demonstrated by a mathematical model, which helps calibrating magnetometer readings under the Maximum Likelihood Estimator scheme. Calibrated data is aligned to the sensor frame in order to be applied later in navigation applications, where the North finding problem is solved by true geomagnetic readings.","PeriodicalId":284815,"journal":{"name":"2019 16th Workshop on Positioning, Navigation and Communications (WPNC)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116500694","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: 4
Localization and communication resource budgeting for multi-user mm-Wave MIMO 多用户毫米波MIMO定位与通信资源预算
2019 16th Workshop on Positioning, Navigation and Communications (WPNC) Pub Date : 2019-10-01 DOI: 10.1109/WPNC47567.2019.8970185
Remun Koirala, B. Denis, B. Uguen, D. Dardari, H. Wymeersch
{"title":"Localization and communication resource budgeting for multi-user mm-Wave MIMO","authors":"Remun Koirala, B. Denis, B. Uguen, D. Dardari, H. Wymeersch","doi":"10.1109/WPNC47567.2019.8970185","DOIUrl":"https://doi.org/10.1109/WPNC47567.2019.8970185","url":null,"abstract":"In this paper, we study the trade-off between data and localization services while dividing time and frequency resources in a multi-user millimeter-wave system. In this multi-service system, budgeting more resources for the data service than for localization would indeed imply higher data rates but also, adversely, higher position and orientation estimation errors. Based on theoretical localization performance bounds and on the expression of the average data rate per user, we herein investigate and compare various ways the two different services could be operated.","PeriodicalId":284815,"journal":{"name":"2019 16th Workshop on Positioning, Navigation and Communications (WPNC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114605438","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: 3
WPNC 2019 Program WPNC 2019计划
2019 16th Workshop on Positioning, Navigation and Communications (WPNC) Pub Date : 2019-10-01 DOI: 10.1109/wpnc47567.2019.8970178
S. Azim, Jenny Fricke, Stefan Jürgens
{"title":"WPNC 2019 Program","authors":"S. Azim, Jenny Fricke, Stefan Jürgens","doi":"10.1109/wpnc47567.2019.8970178","DOIUrl":"https://doi.org/10.1109/wpnc47567.2019.8970178","url":null,"abstract":"","PeriodicalId":284815,"journal":{"name":"2019 16th Workshop on Positioning, Navigation and Communications (WPNC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114769170","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
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