Multilateration
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A Practical and Economical Ultra-wideband Base Station Placement Approach for Indoor Autonomous Driving Systems Open
Automated valet parking (AVP) has attracted much attention as the entry point to autonomous driving. In an indoor environment, high-precision positioning systems are essential for AVP. Ultra-wideband (UWB) is one of the most widely adopted…
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A State-of-the-Art Survey of Indoor Positioning and Navigation Systems and Technologies Open
The research and use of positioning and navigation technologies outdoors has seen a steady and exponential growth. Based on this success, there have been attempts to implement these technologies indoors, leading to numerous studies. Most o…
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A Survey of Sound Source Localization Methods in Wireless Acoustic Sensor Networks Open
Wireless acoustic sensor networks (WASNs) are formed by a distributed group of acoustic-sensing devices featuring audio playing and recording capabilities. Current mobile computing platforms offer great possibilities for the design of audi…
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Accurate Location Tracking From CSI-Based Passive Device-Free Probabilistic Fingerprinting Open
The research on indoor localization has received great interest in recent years. This has been fuelled by the ubiquitous distribution of electronic devices equipped with a radio frequency (RF) interface. Analyzing the signal fluctuation on…
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Contributed Review: Source-localization algorithms and applications using time of arrival and time difference of arrival measurements Open
Locating the position of fixed or mobile sources (i.e., transmitters) based on measurements obtained from sensors (i.e., receivers) is an important research area that is attracting much interest. In this paper, we review several representa…
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A Survey of Recent Indoor Localization Scenarios and Methodologies Open
Recently, various novel scenarios have been studied for indoor localization. The trilateration is known as a classic theoretical model of geometric-based indoor localization, with uniform RSSI data that can be transferred directly into dis…
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Demonstration of a Low-Complexity Indoor Visible Light Positioning System Using an Enhanced TDOA Scheme Open
In this paper, a low-complexity time-difference-of-arrival (TDOA) based indoor visible light positioning (VLP) system using an enhanced practical localization scheme based on cross correlation is proposed and experimentally demonstrated. T…
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Time Difference of Arrival (TDoA) Localization Combining Weighted Least Squares and Firefly Algorithm Open
Time difference of arrival (TDoA) based on a group of sensor nodes with known locations has been widely used to locate targets. Two-step weighted least squares (TSWLS), constrained weighted least squares (CWLS), and Newton–Raphson (NR) ite…
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TDoA‐Based Outdoor Positioning with Tracking Algorithm in a Public LoRa Network Open
The performance of LoRa geolocation for outdoor tracking purposes has been investigated on a public LoRaWAN network. Time Difference of Arrival (TDoA) localization accuracy, update probability, and update frequency were evaluated for diffe…
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Towards End-to-End Acoustic Localization Using Deep Learning: From Audio Signals to Source Position Coordinates Open
This paper presents a novel approach for indoor acoustic source localization using microphone arrays, based on a Convolutional Neural Network (CNN). In the proposed solution, the CNN is designed to directly estimate the three-dimensional p…
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UWB-Based Indoor Human Localization With Time-Delayed Data Using EFIR Filtering Open
An ultra wide band (UWB)-based time-delay indoor human localization scheme is proposed to provide indoor human localization with time-delay measurements. The human position is localized using the UWB-based distance data and the extended fi…
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Analysis of the Scalability of UWB Indoor Localization Solutions for High User Densities Open
Radio frequency (RF) technologies are often used to track assets in indoor environments. Among others, ultra-wideband (UWB) has constantly gained interest thanks to its capability to obtain typical errors of 30 cm or lower, making it more …
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An Indoor Localization Method Based on AOA and PDOA Using Virtual Stations in Multipath and NLOS Environments for Passive UHF RFID Open
Ultra-high frequency radio frequency identification (UHF RFID) localization technique has been considered increasingly promising in indoor positioning systems. However, conventional localization algorithms are vulnerable in multipath and n…
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Acoustic SLAM Open
An algorithm is presented that enables devices equipped with microphones, such as robots, to move within their environment in order to explore, adapt to and interact with sound sources of interest. Acoustic scene mapping creates a 3D repre…
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Practical Fingerprinting Localization for Indoor Positioning System by Using Beacons Open
Recent developments in the fields of smartphones and wireless communication technologies such as beacons, Wi-Fi, and ultra-wideband have made it possible to realize indoor positioning system (IPS) with a few meters of accuracy. In this pap…
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A Survey of 3D Indoor Localization Systems and Technologies Open
Indoor localization has recently and significantly attracted the interest of the research community mainly due to the fact that Global Navigation Satellite Systems (GNSSs) typically fail in indoor environments. In the last couple of decade…
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A Novel Airspace Planning Algorithm for Cooperative Target Localization Open
With the development of modern electromagnetic stealth technology and ARM, traditional active radar detection cannot accomplish its detection mission, limited by its ability. Relying on such superior advantages such as imperceptibility, an…
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Frequency-Sliding Generalized Cross-Correlation: A Sub-Band Time Delay Estimation Approach Open
The generalized cross-correlation(GCC) is regarded as the most popular approach for estimating the time difference of arrival (TDOA) between the signals received at two sensors. Time delay estimates are obtained by maximizing the GCC outpu…
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Efficient and Accurate Target Localization in Underwater Environment Open
Localization is the basic feature of wireless sensor networks (WSN) and estimating the time difference of arrival (TDoA), and angle of arrival (AoA) is the most used schemes for localization. Underwater wireless sensor network (UWSN) is ex…
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Maritime Moving Target Localization Using Passive GNSS-Based Multistatic Radar Open
This paper examines the potential in extracting the instantaneous location of maritime moving targets using a passive multistatic radar with Global Navigation Satellite Systems (GNSS) as illuminators of opportunity and a single receiver. T…
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Numerical Investigation of an UWB Localization Technique for Unmanned Aerial Vehicles in Outdoor Scenarios Open
In this paper, the numerical investigation of an ultra wideband (UWB) localization technique suitable for the tracking and control of an unmanned aerial vehicle (UAV) in a specific outdoor scenario is presented. A set of UWB nodes are loca…
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Distributed Estimation Approach for Tracking a Mobile Target via Formation of UAVs Open
Tallennetaan OA-artikkeli, kun julkaistu
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Three Dimensional Comprehensive Analytical Solutions for Locating Sources of Sensor Networks in Unknown Velocity Mining System Open
The accuracy of localization methods based on the arrival time difference is usually affected by the iterative algorithm, the initial value, and the pre-measured wave velocity. The analytical solutions are non-unique because of the square …
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Robust Time-Difference-of-Arrival (TDOA) Localization Using Weighted Least Squares with Cone Tangent Plane Constraint Open
Finding the position of a radiative source based on time-difference-of-arrival (TDOA) measurements from spatially separated receivers has been widely applied in sonar, radar, mobile communications and sensor networks. For the nonlinear mod…
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Low-Power LoRa Signal-Based Outdoor Positioning Using Fingerprint Algorithm Open
Positioning is an essential element in most Internet of Things (IoT) applications. Global Positioning System (GPS) chips have high cost and power consumption, making it unsuitable for long-range (LoRa) and low-power IoT devices. Alternativ…
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A Deep Learning Approach to Position Estimation from Channel Impulse Responses Open
Radio-based locating systems allow for a robust and continuous tracking in industrial environments and are a key enabler for the digitalization of processes in many areas such as production, manufacturing, and warehouse management. Time di…
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A Geometrical–Statistical Approach to Outlier Removal for TDOA Measurements Open
The curse of outlier measurements in estimation problems is a well known\nissue in a variety of fields. Therefore, outlier removal procedures, which\nenables the identification of spurious measurements within a set, have been\ndeveloped fo…
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A Comprehensive Review of Signal Processing and Machine Learning Technologies for UHF PD Detection and Diagnosis (I): Preprocessing and Localization Approaches Open
Partial discharge (PD) detection and diagnosis based on the ultra-high frequency (UHF) signals is one of the most widely adopted methods to evaluate the internal insulation status of high voltage equipment. Benefit from the rapid developme…
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Optimal Sensor Placement for Source Localization: A Unified ADMM Approach Open
Source localization plays a key role in many applications including radar,\nwireless and underwater communications. Among various localization methods, the\nmost popular ones are Time-Of-Arrival (TOA), Time-Difference-Of-Arrival (TDOA),\na…
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A Robust and Accurate Indoor Localization Using Learning-Based Fusion of Wi-Fi RTT and RSSI Open
Great attention has been paid to indoor localization due to its wide range of associated applications and services. Fingerprinting and time-based localization techniques are among the most popular approaches in the field due to their promi…