Results 11 to 20 of about 166,145,613 (262)

Direction-of-Arrival Estimation Based on Frequency Difference–Wavenumber Analysis for Sparse Vertical Array Configuration

Sensors, 2022
Frequency–wavenumber (f–k) analysis can estimate the direction of arrival (DOA) of broadband signals received on a vertical array. When the vertical array configuration is sparse, it results in an aliasing error due to spatial sampling; thus, several ...
Donghyeon Kim, Gihoon Byun, Jeasoo Kim
doaj   +4 more sources

Time of arrival difference estimation for narrow band high frequency echolocation clicks [PDF]

The Journal of the Acoustical Society of America, 2019
Funding: Scottish Government as part of the Marine Mammal Scientific Research Program MMSS/002/15; Natural Environment Research Council, Grant No. NE/R014639/1.Algorithms are presented for the accurate time of arrival difference estimation of high ...
Jamie Macaulay, Gillespie, Douglas, Macaulay, Jamie, Douglas Gillespie   +3 more
core   +6 more sources

Orthogonal frequency division multiplexing-based time difference of arrival estimation [PDF]

IET Communications, 2019
International audienceThis study presents a spectral approach to estimate the time difference of arrival (TDOA) between a reference unit, composed of a pair of very close antennas (small baseline regarding the operating bandwidth), acting as a known ...
Abu-Hudrouss, Ammar, Abudabbousa, Ahmed, Benlarbi-Delai, Aziz   +2 more
core   +4 more sources

An Improved Time Difference of Arrival/Frequency Difference of Arrival Estimation Algorithm for Frequency Shift Keying Signals

Electronics
Based on the generalized cross-correlation method (GCC), the period peaks in the cross-correlation function (CCF) of frequency shift keying (FSK) signals will degrade the estimation performance of time difference of arrival (TDOA), as well as the ...
Qun Wan, Shanfeng Yao, Xinxin Ouyang, Hongtao Cao   +3 more
core   +2 more sources

Frequency-difference sparse Bayesian learning for unambiguous direction-of-arrival estimation [PDF]

JASA Express Letters
The frequency-difference (FD) method uses the FD Hadamard product, comprising auto-products to model below-band acoustic fields and unintended cross-products, for efficient direction-of-arrival (DOA) estimation under spatial aliasing.
Ze Yuan, Haiqiang Niu, Zhenglin Li, Wenyu Luo   +3 more
doaj   +3 more sources

Multi-Frequency Phase Difference of Arrival for Precise Localization in Narrowband LPWA Networks

ICC 2021 - IEEE International Conference on Communications, 2021
International audienceIn Low Power Wide Area (LPWA) networks, radio localization based on Time Difference of Arrival measurements has major benefits: energy consumption of the node and spectrum usage are contained.
Mannoni, Valérian, Wolf, Florian, Dehmas, Francois, de Rivaz, Sébastien, Valerian Mannoni, Francois Dehmas, Berg, Vincent, Florian Wolf, Vincent Berg, Sebastien De Rivaz   +9 more
core   +4 more sources

Two-Dimensional Frequency-Difference-of-Arrival Varieties

This paper studies Frequency-Difference-of-Arrival (FDOA) curves for the 2-dimensional, 2-sensor case. The primary focus of this paper is to give a description of curves associated to the FDOA problem from the algebro-geometric point of view.
Duflot, Jeanne, Cheney, Margaret, Given, James A.   +2 more
core   +3 more sources

Angle of arrival estimation for broadband signals : a comparison [PDF]

, 2013
This paper reviews and compares three different linear algebraic signal subspace techniques for angle of arrival estimation. These include a polynomial matrix approach to multiple signal classification (MUSIC), a parameterised spatial covariance matrix ...
Weiss, Stephan, S. Weiss, J.G. McWhirter, McWhirter, John G., S. Lambotharan, S. Redif, Lambotharan, Sangarapillai, M. Alrmah, Alrmah, Mohamed Abubaker, Redif, Soydan   +9 more
core   +4 more sources

Target localization method based on semi-definite relaxation with frequency difference of arrival

Dianxin kexue
The use of frequency measurements to achieve target positioning is characterized by low cost and high reliability. Using only frequency difference of arrival (FDOA) measurements, a precise localization method for static target position was proposed.
MAO Xiaoting, WU Xiaoping
doaj   +3 more sources

Time‐difference‐of‐arrival and frequency‐difference‐of‐arrival estimation for signals with partially known waveform

IET Signal Processing, 2023
Abstract In many passive localization applications, the reference waveform of the received electromagnetic signals is partly known. The received signals in such scenarios are formulated by modelling the relationship between the received data and the known reference signal waveform and the parameters of interest, such as time ...
Yan Liu, Yi Zhu, Yuan Zhang, Fucheng Guo 0001   +3 more
openaire   +2 more sources