Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"indoor positioning system"”.
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WiFiPoz -- an accurate indoor positioning system
… localization needs. The problem of locating an indoor user has being studied only recently. Much research contributed to the innovative concept of an indoor positioning system. By analyzing different technologies and algorithms, this thesis concluded that, considering a trade-off between …
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Fast Chirped Signals for a TDMA Ultrasonic Indoor Positioning System
<p>In this paper, a new concept for ultrasonic indoor positioning based on instantaneous frequency of ultrasonic signals is presented. Nonlinear phase characteristics of ultrasonic transducers introduce a frequency deviation in ultrasonic signals. By sweeping at very fast rates, a large spike in …
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Anonymous Indoor Positioning System using Depth Sensors for Context-aware Human-Building Interaction
Indoor Localization Systems (ILS), also known as Indoor Positioning Systems (IPS), has been created to determine the position of individuals and other assets inside facilities. Indoor Localization Systems have been implemented for monitoring individuals and objects in a variety of sectors. In …
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Six degrees of freedom estimation using monocular vision and moiré patterns
… are conducted to determine the accuracy of the system relative to ground truth locations obtained through an external indoor positioning system. Position estimations with accompanying control techniques have been implemented including hovering, static platform landings, and dynamic platform …
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Indoor Positioning Using Synchronized Ultrasonic OFDMA Signals
<p>This paper proposes a method of short-range indoor localization using differential phase measurements of synchronized two-tone ultrasonic signals in an Orthogonal Frequency Multiple Access (OFDMA) scheme. This indoor positioning system (IPS) operates at an ultrasonic frequency of approximately …
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Map-assisted Indoor Positioning Utilizing Ubiquitous WiFi Signals
The demand of indoor positioning solution is on the increase dramatically, and WiFi-based indoor positioning is known as a very promising approach because of the ubiquitous WiFi signals and WiFi-compatible mobile devices. Improving the positioning accuracy is the primary target of most recent …
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Identification and Mitigation of NLOS based on Channel Information Rules for Indoor UWB Localization
Indoor localization is an emerging technology that can be utilized for developing products and services for commercial usage, public safety, military applications and so forth. Commercially it can be applied to track children, people with special needs, help navigate blind people, locate equipment, …
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Towards pedestrian simultaneous localisation and mapping with mobile phones
Indoor positioning systems (IPS) are very commonly used in robotics and are essential for many autonomous operations as GPS can be unreliable indoors and is therefore infeasible for such applications. In this paper we lay the groundwork for a pedestrian positioning system, which can map indoor …
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INTELLIGENT ALGORITHMS FOR HIGH ACCURACY INDOOR POSITIONING AND TRACKING
… blooming of Wireless Sensor Networks. Outdoor positioning has been shown very well and is commonly used in everyday life thanks to the well-known GPS scheme. However, owing to the unique problems and distinctive requirements in the indoor environment, indoor positioning is still undergrowth and …
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Pushing the limits of wireless networks
… other. This thesis describes OpenRF, a novel system that enables today's Wi-Fi access points to directly combat this interference and demonstrate significantly faster data-rates for real applications. In addition, it presents MoMIMO, which demonstrates how the natural mobility of mobile users …
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Self-organising an indoor location system using a paintable amorphous computer
… may be used in the rapid deployment of a passive indoor positioning system's infrastructure.<br/>A future hypothetical scenario is used where computing particles are suspended in paint and covered over a ceiling. A spatial pattern is then formed over the covered ceiling. Any small portion of the …
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Positioning In Indoor Environments Based on INS and RF Sensor Fusion
… years have witnessed an increasing demand for positioning applications in indoor environments. Several technologies have been employed to develop systems which can efficiently perform the positioning task in such environments. However, most of the available systems are either large and …
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Crowdsourcing Mobile Data for Indoor Positioning
Indoor positioning is a key enabler for context-aware computing. Applications such as navigation, tracking, monitoring, spatial programming and location-based information sharing require the accurate and timely inputs of users' indoor positions. Signal fingerprinting, as a popular …
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Sensor exploration for localization in cleanrooms
Indoor localization is used to locate people or objects within indoor environments such as buildings and rooms. The major applications of indoor localization involve the expansion of location-aware computing such as monitoring and surveillance in scientific labs, accessibility aids, targeted …