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.
Results
Showing 1 to 20 of 39 for “"Indoor Positioning"”.
-
TaleBlazer : indoor positioning
… TaleBlazer games could only be played outdoors. Indoor positioning is an active area of research. This thesis will explore and evaluate a variety of more sophisticated alternatives to an existing, simple indoor positioning scheme for TaleBlazer. None of the explored indoor positioning techniques …
-
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 …
-
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 …
-
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 …
-
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 …
-
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 …
-
Indoor positioning using modulated echo radio localization instrument (MERLIN)
… technology and its close integration within indoor environments, the ability to navigate people and devices indoors has become increasingly important for numerous applications. Global Positioning System (GPS) has solved the issue of positioning and navigation for outdoor environments. …
-
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 …
-
Improving Bluetooth-based Indoor Positioning Using Vision and Artificial Networks
The demands for accurate positioning and navigation applications in complex indoor environments such as emergency call positioning, fire-fighting services, and rescue operations are increasing continuously. Global Navigation Satellite Systems (GNSS) receivers, while ubiquitous in outdoor …
-
Multi-vehicle rover testbed using a new indoor positioning sensor
… describes the design and implementation of an indoor multi-rover testbed using a high-precision indoor positioning sensor system. The system model for the rover is derived and used in a Kalman filter that estimates each rover's velocity given the position measurements. These state estimates are …
-
Novel techniques for improved indoor positioning and localization using HF RFID
… Radio Frequency Identification (HF RFID) based positioning using a novel concept of multi-loop bridge reader antenna to localise moving objects such as autonomous wheelchairs in indoor environments. Typical HF RFIDs operate at 13.56 MHz and employ passive tags which are excited by the magnetic …
-
Enhanced indoor positioning utilising wi-fi fingerprint and QR calibration techniques
… has expedited the research development for indoor positioning techniques. The widely used global positioning system (GPS) is a proven technology for positioning, navigation, but it performs poorly indoors. Hence, researchers seek alternative solutions, including the concept of signal of …
-
Indoor Positioning Using Acoustic Pseudo-Noise Based Time Difference of Arrival
<p>The Global Positioning System (GPS) provides good precision on a global scale, but is not suitable for indoor applications. Indoor positioning systems (IPS) aim to provide high precision position information in an indoor environment. IPS has huge market opportunity with a growing number of …
-
6 GHz Spectrum Sharing between Fixed Microwave Links and Indoor Positioning Systems
The 6 GHz spectrum band (5.925 GHz – 7.125 GHz) is an important frequency range for many industries due to its high bandwidth capabilities, low latency, and ability to support high data transfer rates. Different types of services, both fixed and mobile, are utilizing the 6 GHz frequency band at …
-
OpenLS for indoor positioning : strategies for standardizing location based services for indoor use
The combination of location positioning technologies such as GPS and initiatives like the US Federal Communications Commission's E911 telecommunication initiatives has generated a lot of interest in applications and services that are a function of a user's location, referred to as location-based …
-
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 …
-
Optimal Indoor Positioning, Trajectory Reconstruction and Localisation with Uncertainty Control using Radio-Frequency Measurements
This thesis addresses the problem of target positioning and localization using Radio Frequency (RF) based measurements and using a variety of modulation including Time of Arrival (ToA), Phase of arrival (PoA) and Received Strength Indicator of RF signals (RSSI). Starting from finding the planar …
-
Pushing the limits of wireless networks
… In particular, this dissertation focuses on indoor positioning, a service that has grabbed the attention of the academia and industry. While GPS has revolutionized outdoor navigation, it does not work indoors. Past work that has explored this problem is either limited in accuracy with errors …
-
Use of GIS in Radio Frequency and Positioning Applications
… (RF) Model, a Medium Scale RF Model, and Indoor Positioning. The Large Scale RF Model estimates RF propagation using the latest terrain data supplied in GIS for frequencies ranging from 500 MHz to 5 GHz. The Medium Scale RF Model incorporates GIS building data to model WiFi systems at 2.4 …
-
Analysis of the Position-Dependent Error in FTM RTT Indoor Navigation
… access point) provides a promising method for indoor positioning. Accurate indoor positioning is a requirement for a wide range of applications, such as asset tracking, indoor navigation, and contact tracing. Unfortunately, the error of reported FTM RTT distance measurements has been shown to …
Page 1 of 2