Results 11 to 20 of about 12,179 (194)

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

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   +2 more sources

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

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

Development and Demonstration of a TDOA-Based GNSS Interference Signal Localization System [PDF]

open access: yes, 2012
Background theory, a reference design, and demonstration results are given for a Global Navigation Satellite System (GNSS) interference localization system comprising a distributed radio-frequency sensor network that simultaneously locates multiple ...
Bhatti, Jahshan A.   +2 more
core   +1 more source

High precision real-time location estimates in a real-life barn environment using a commercial ultra wideband chip [PDF]

open access: yes, 2020
Structural changes lead to an increase in the number of dairy cows and dry sows kept per group. This has consequences in how easily a farmer can supervise his herd and may be detrimental to animal welfare, specifically regarding social relations, time ...
Früh, Daniel   +4 more
core   +1 more source

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

Space-Time diversity for NLOS mitigation in TDOA-based positioning systems [PDF]

open access: yes, 2016
This paper studies the potential impact of using space-Time information in the mitigation of the Non-LineOf-Sight condition in mobile subscriber's positioning systems.
Garzon, Esteban   +2 more
core   +1 more source

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