With the rapid growth in smartphone technologies and improvement their navigation sensors, an increasing amount of location information is now available, opening road to provision new Intelligent Transportation System (ITS) services. Current devices embody miniaturized Global Navigation Satellite (GNSS), Inertial Measurement Unit (IMU) other sensors capable providing user position, velocity attitude. However, it hard characterize actual positioning performance capabilities due disparate...

Pedestrian modeling remains a formidable challenge in transportation science due to the complicated nature of pedestrian behavior and irregular movement patterns. To this extent, accurate reliable positioning technologies techniques play significant role simulation studies. The objective research is predict various perspectives utilizing historical trajectory data. study features considered are class, speed position. ensemble these provides thorough description prediction, whilst contributes...

The availability of global navigation satellite systems (GNSS) on consumer devices has caused a dramatic change in every-day life and human behaviour globally. Although GNSS generally performs well outdoors, unavailability, intentional unintentional threats, reliability issues still remain. This motivated the deployment other complementary sensors such way that enables reliable positioning, even GNSS-challenged environments. Besides sensor integration single platform to remedy lack GNSS,...

The rapid growth in the technological advancements of smartphone industry has classified contemporary smartphones as a low-cost and high quality indoor positioning tools requiring no additional infrastructure or equipment. In recent years, fine time measurement (FTM) protocol, achieved through Wi-Fi round trip (RTT) observable, available most models, gained interest many research teams worldwide, especially those concerned with localization problems. However, RTT technology is still new,...

Recent improvements in the field of wireless technologies has led to an increase available tools for Location Based Services (LBS). Modern indoor LBS applications continually raise bar requirements employed positioning technology and Ultra-Wide Band (UWB) ranging become relevant by providing adequate performance. UWB employs modulated impulse signals achieving accuracies order cm offering increased capabilities compared other Radio-Frequency methods. In systems function reliably complex...

Cooperative positioning (CP) utilises information sharing among multiple nodes to enable in Global Navigation Satellite System (GNSS)-denied environments. This paper reports the performance of a CP system for pedestrians using Ultra-Wide Band (UWB) technology inGNSS-denied data set was collected as part benchmarking measurementcampaign carried out at Ohio State University October 2017. Pedestrians were equippedwith variety sensors, including two different UWB systems, on specially designed...

In this paper, we address the challenge of robust indoor positioning using integrated UWB and Wi-Fi measurements. A key limitation any fusion algorithm is whether distribution that describes random errors in measurements has been correctly specified. Here, describe details a set practical experiments conducted on purpose built calibration range, to evaluate performance commercial sensors with as captured by an in-house smartphone application. present comparisons ranges from into true...

Pedestrians comprise a major component of the transport system and their incorporation in design future cities is vital importance. The development C-ITS systems requires real-time information concerned with accurate position kinematics pedestrians. Therefore, it necessitates existence reliable pedestrian simulation models. objective this study exploration existing tools considering modeling techniques data collection technologies for under normal conditions interrelations within framework...

Abstract Localization in GNSS-denied/challenged indoor/outdoor and transitional environments represents a challenging research problem. This paper reports about sequence of extensive experiments, conducted at The Ohio State University (OSU) as part the joint effort FIG/IAG WG on Multi-sensor Systems. Their overall aim is to assess feasibility achieving GNSS-like performance for ubiquitous positioning terms autonomous, global, preferably infrastructure-free portable platforms affordable cost...

Abstract This paper presents the dynamic testing of a roadway, single-span, cable-stayed bridge for sequence static load and ambient vibration monitoring scenarios. Deck movements were captured along both sideways using Digital Image Correlation (DIC) Ground-based Microwave Interfererometer (GBMI) system. Cable vibrations measured at single point location on each six cables GBMI technique. Dynamic involves three types analyses; firstly, analysis modal parameter estimation (i. e., natural...

Global navigation satellite systems (GNSS) has become a kind of positioning standard due to the high penetration rate this technology on mass market intelligent transportation (ITS) applications. However, technique remains real challenge for very demanding ITS services which require continuity and specific accuracy data. This study reports practical methodological approach evaluation GNSS multi-sensors attitude vehicles in life conditions. Test scenarios have been set up with several sensors...

“Smart” devices, such as contemporary smartphones and PDAs (Personal Digital Assistance), play a significant role in our daily live, be it for navigation or location-based services (LBSs). In this paper, the use of Ultra-Wide Band (UWB) Wireless Fidelity (Wi-Fi) based on RTT (Round-Trip Time) measurements is investigated pedestrian user localization. For purpose, several scenarios are designed either using real observation simulated data. addition, localization groups within neighborhood...

A relatively low-cost system for indoor parking facilities management is proposed, which a combined solution of RFID/WiFi and MEMS IMU monitoring scheme. An RFID localisation module proposed in the form so-called virtual gates. To define such gates, either tags or readers are placed at known locations throughout area interest. In this study, number fixed positions moving reader carried by each participating vehicle. Based on configuration set-up, Cell Origin (CoO) technique applied,...

Global navigation satellite systems have tremendous impact and potential in the development of intelligent transportation mobility services are expected to deliver significant benefits, including increased capacity, improved safety, decreased pollution. However, there situations which might not be direct location information about vehicles, for example, tunnels indoor facilities such as parking garages commercial vehicle depots. Various technologies can used localization these cases, other...

This paper presents a series of tests and analyses undertaken to investigate the performance capabilities an active RFID system (Freaquent®) for asset tracking personal mobility. The was tested exhaustively considering number user requirements including maximum operating distance, antenna orientation, position accuracy, influences caused by nearby objects environment. For this purpose, various positioning techniques were applied based on lateration fingerprinting concepts. Analysis revealed...

This paper presents the mathematical models developed for design of a pedestrian, cable stayed bridge, geodetic monitoring procedures and their detailed cross-comparisons analyses undertaken during phases construction at commissioning stage. Because asymmetric design, relative flexibility pylons, eccentric positioning central joint off-plane low angles cables, multi-sensor, event based scheme was adopted to assess structural integrity bridge. During construction, bridge kinematics were...

Abstract. The increasing demand for reliable indoor navigation systems is leading the research community to investigate various approaches obtain effective solutions usable with mobile devices. Among recently proposed strategies, Ultra-Wide Band (UWB) positioning are worth be mentioned because of their good performance in a wide range operating conditions. However, such can significantly degraded by large UWB errors; mostly, due non-line-of-sight (NLOS) measurements. This paper considers...

Abstract. The development and availability on consumer devices of the global navigation satellite systems (GNSS) have dramatically changed everyday-life most human population, enabling real time almost any smart device produced in last years. However, such strong dependence GNSS limits further spread location based services to areas where is not available or reliable. Motivated by these considerations, several research groups recently considered problem developing alternative positioning...

Abstract. Mining and quarrying industry has recently made a shift towards underground exploitation as viable alternative to traditional open-pit approaches. Thus, emerged the imperative need for localization systems personnel safety operations’ monitoring purposes. While there are many approaches taking advantage of various signals opportunity (SoO) supported by Internet Things (IoT) indoor navigation, GNSS in such areas is still present terms meeting system user requirements (scale, cost,...

<p>The release of Android Raw GNSS Measurements API in mid-2016 has enabled the reconstruction pseudorange, carrier-phase, Doppler and carrier-to-noise density (CN0) observables low-cost, smart devices.  This technical development opened door to numerous applications that necessitate increased Position-Velocity-Time (PVT) quality metrics.  However, despite recent advances field, deficiencies inherent smartphones antenna chipset, still account for...

<p>The recent advances in Information Technology (IT) and Micro-Electromechanical Systems (MEMS) technologies their global adoption contemporary smartphone PDA devices enables the introduction of novel approaches for indoor positioning applications that combine multi-sensor capabilities.</p> <p>In this regard, Radio-frequency (RF), high accuracy ranging operating Ultra-Wide Band (UWB) spectrum have recently been introduced devices. Additionally,...