Results 11 to 20 of about 12,351 (211)

Acoustic Indoor Localization Augmentation by Self-Calibration and Machine Learning

open access: yesSensors, 2020
An acoustic transmitter can be located by having multiple static microphones. These microphones are synchronized and measure the time differences of arrival (TDoA). Usually, the positions of the microphones are assumed to be known in advance. However, in
Joan Bordoy   +9 more
doaj   +1 more source

EM-Based TDOA Estimation of a Speech Source via Gaussian Mixture Models in Noisy and Anechoic Environments

open access: yesIEEE Access, 2021
The propagation delay difference of a speech signal transmitted from the source to microphones, also known as time difference of arrival (TDOA), embodies the information of speech source position. The TDOA estimation plays a vital role in diverse systems
Zhihua Lu, Joao P. J. Da Costa, Tai Fei
doaj   +1 more source

Localization in Wireless Sensor Networks: A Review

open access: yesCybernetics and Information Technologies, 2020
Wireless Sensor Network (WSN) has been a source of attraction for many researchers as well as common people for the past few years. The use of WSN in various environmental applications like monitoring of weather, temperature, humidity, military ...
Sneha V., Nagarajan M.
doaj   +1 more source

Compass Aided TDoA Tracking in LoRaWAN networks [PDF]

open access: yes2020 IEEE/ION Position, Location and Navigation Symposium (PLANS), 2020
LoRWAN nodes can be localized using the TDoA (Time Difference of Arrival) approach. A big advantage is that the geo-location does not consume a lot of energy when compared to GPS approaches. Depending on the use case, the accuracy of the geo-localization (200m) might be a disadvantage.
Podevijn, Nico   +7 more
openaire   +1 more source

Sound Event Detection Using Spatial Features and Convolutional Recurrent Neural Network [PDF]

open access: yes, 2017
This paper proposes to use low-level spatial features extracted from multichannel audio for sound event detection. We extend the convolutional recurrent neural network to handle more than one type of these multichannel features by learning from each of ...
Adavanne, Sharath   +2 more
core   +3 more sources

Research on positioning algorithm of electric mine shovel based on UWB technology

open access: yesGong-kuang zidonghua, 2020
In the harsh working environment of mines, the traditional cable reeling method cannot guarantee the power supply of electric shovel for a long time, and there are hidden safety hazards in the process of power supply.
GUO Anbin, SU Hongjun, YAN Xiaoheng
doaj   +1 more source

A comprehensive analysis of the geometry of TDOA maps in localisation problems [PDF]

open access: yes, 2014
In this manuscript we consider the well-established problem of TDOA-based source localization and propose a comprehensive analysis of its solutions for arbitrary sensor measurements and placements.
Antonacci, Fabio   +3 more
core   +2 more sources

TDOA Location Accuracy Experiment

open access: yesJournal of Physics: Conference Series, 2019
Abstract TDOA-based wireless signal location technology has been extensively used in engineering applications. Due to the lack of quantitative TDOA location accuracy index benchmark, there is the absence of reference basis in the development of TDOA application system indicators and performance evaluation.
Xiping Wen, Jinxia Wang
openaire   +1 more source

Multi-TDOA Location Algorithm for Three Satellites TDOA Passive Location System

open access: yesJournal of Radars, 2012
Location precision of radiant source is the primary performance of passive location system, and how to improve location precision is an important problem which always attracts attention. In three satellites TDOA (Time Difference Of Arrival) passive location system, location precision of single pulse location is limited by the error of TDOA measure. For
Ren Wen-juan, Hu Dong-hui, Ding Chi-biao
openaire   +2 more sources

Wideband TDoA Positioning Exploiting RSS-Based Clustering

open access: yesSensors, 2023
The accuracy of radio-based positioning is heavily influenced by a dense multipath (DM) channel, leading to poor position accuracy. The DM affects both time of flight (ToF) measurements extracted from wideband (WB) signals—specifically, if the bandwidth is below 100 MHz—as well as received signal strength (RSS) measurements, due to the interference of ...
Andreas Fuchs   +4 more
openaire   +3 more sources

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