Results 31 to 40 of about 12,770 (175)

Multi-Array 5G V2V Relative Positioning: Performance Bounds

open access: yes, 2019
We study the performance bounds of vehicle-to-vehicle (V2V) relative positioning for vehicles with multiple antenna arrays. The Cram\'{e}r-Rao bound for the estimation of the relative position and the orientation of the Tx vehicle is derived, when angle ...
García, Mario H. Castañeda   +3 more
core   +1 more source

Time difference of arrival estimation of sound source using cross correlation and modified maximum likelihood weighting function [PDF]

open access: yes, 2017
The Generalized Cross Correlation (GCC) framework is one of the most widely used methods for Time Difference Of Arrival (TDOA) estimation and Sound Source Localization (SSL).
Hosseini, M. S.   +2 more
core   +1 more source

A New Hybrid Algorithm to Image Lightning Channels Combining the Time Difference of Arrival Technique and Electromagnetic Time Reversal Technique

open access: yesRemote Sensing, 2021
Very-high-frequency (VHF) electromagnetic signals have been well used to image lightning channels with high temporal and spatial resolution due to their capability to penetrate clouds.
Fengquan Li   +8 more
semanticscholar   +1 more source

Comparison of alternatives to amplitude thresholding for onset detection of acoustic emission signals [PDF]

open access: yes, 2016
Acoustic Emission (AE) monitoring can be used to detect the presence of damage as well as determine its location in Structural Health Monitoring (SHM) applications.
Bai, F.   +3 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

Theory of Automatic Dependent Surveillance–Broadcast Position Verification Using Time Difference of Arrival

open access: yesIEEE Transactions on Aerospace and Electronic Systems, 2021
Automatic dependent surveillance–broadcast (ADS-B) is an emerging means of aeronautical surveillance. Because ADS-B is susceptible to false aircraft information, position verification is essential.
Jun Naganawa, H. Miyazaki
semanticscholar   +1 more source

Geolocation with FDOA Measurements via Polynomial Systems and RANSAC

open access: yes, 2017
The problem of geolocation of a transmitter via time difference of arrival (TDOA) and frequency difference of arrival (FDOA) is given as a system of polynomial equations.
Bates, Daniel J., Cameron, Karleigh J.
core   +1 more source

Quantification of the performance of iterative and non-iterative computational methods of locating partial discharges using RF measurement techniques [PDF]

open access: yes, 2017
Partial discharge (PD) is an electrical discharge phenomenon that occurs when the insulation materialof high voltage equipment is subjected to high electric field stress. Its occurrence can be an indication ofincipient failure within power equipment such
Alistair J. Reid   +29 more
core   +1 more source

Cross Recurrence Plot Analysis Based Method For TDOA Estimation Of Underwater Acoustic Signals

open access: yes, 2015
International audience—In this paper, we propose to use cross recurrence plot analysis (CRPA) to estimate the time-difference of arrival (TDOA) of underwater acoustic signals arriving on an array of hydrophones.
Gervaise, Cedric   +3 more
core   +2 more sources

Near‐Field Acoustic Imaging Using Fiber‐Optic Distributed Acoustic Sensing and Beamforming Techniques

open access: yesAdvanced Science, Volume 13, Issue 6, 30 January 2026.
This work introduces a beamforming‐based method to generate acoustic images from fiber‐optic distributed acoustic sensing (DAS) data. By performing 2D scanning around the sensing fiber, the approach enables near‐field imaging and localization of acoustic sources, even in regions distant from the fiber. A data‐driven DAS channel selection improves image
Marcelo A. Soto   +1 more
wiley   +1 more source

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