Results 21 to 30 of about 385,970 (163)

Comparative Study between Several Direction of Arrival Estimation Methods

Journal of Telecommunications and Information Technology, 2014
In this paper a comparative study, restricted to one-dimensional stationary case, between several Direction of Arrival (DOA) estimation algorithms of narrowband signals is presented.
Youssef Khmou, Said Safi, Miloud Frikel
doaj   +1 more source

A Decoupled Direct Positioning Algorithm for Strictly Noncircular Sources Based on Doppler Shifts and Angle of Arrival

IEEE Access, 2018
This paper discusses the localization problem for strictly noncircular sources based on Doppler shifts and angle of arrival (AOA). The conventional location methods, called two-step methods, first extract measurement parameters from the signals, and then
Tianzhu Qin, Zhiyu Lu, Bin Ba, Daming Wang   +3 more
doaj   +1 more source

A Feasibility Study for a Hand-Held Acoustic Imaging Camera

Applied Sciences, 2023
Acoustic imaging systems construct spatial maps of sound sources and have potential in various applications, but large, cumbersome form factors limit their adoption.
Danilo Greco
doaj   +1 more source

Spatial resolution in electrical impedance tomography: A topical review

Journal of Electrical Bioimpedance, 2017
Electrical impedance tomography (EIT) is a relatively new imaging technique. It has the advantages of low cost, portability, non-invasiveness and is free from radiation effects.
Chitturi Venkatratnam, Farrukh Nagi
doaj   +1 more source

Spatial pseudorandom array processing [PDF]

IEEE Transactions on Acoustics, Speech, and Signal Processing, 1989
A pseudorandom permuting procedure and the associated array signal processing are introduced for resolving multiple coherent signal sources. Conventional adaptive beamforming algorithms fail to operate in such a situation, as their performance will degrade.
Cheng-Yuan Liou, Ruey-Ming Liou
openaire   +1 more source

Beamforming Techniques for Resilient Navigation with Small Antenna Arrays

Engineering Proceedings, 2023
This paper presents a comparative benchmarking of different beamforming techniques for robust multipath and spoofing mitigation in handheld receivers equipped with a small number of antenna elements.
Lucía Pallarés-Rodríguez, Sergi Locubiche-Serra, Guillem Foreman-Campins, Gonzalo Seco-Granados, José A. López-Salcedo   +4 more
doaj   +1 more source

Multi-Radar Distributed Fusion Algorithm Aided by Multi-Feature Information

Applied Sciences
Compared with single-radar systems, multi-radar systems generally achieve superior detection performance due to their spatial and frequency diversity.
Jin Tao, Xingchen Lu, Junyan Tan, Yuan Li, Yiyue Gao, Defu Jiang   +5 more
doaj   +1 more source

Wireless Sensor Array Network DoA Estimation from Compressed Array Data via Joint Sparse Representation

Sensors, 2016
A compressive sensing joint sparse representation direction of arrival estimation (CSJSR-DoA) approach is proposed for wireless sensor array networks (WSAN).
Kai Yu, Ming Yin, Ji-An Luo, Yingguan Wang, Ming Bao, Yu-Hen Hu, Zhi Wang   +6 more
doaj   +1 more source

An Efficient Framework for Estimating the Direction of Multiple Sound Sources Using Higher-Order Generalized Singular Value Decomposition

Sensors, 2019
This paper presents an efficient framework for estimating the direction-of-arrival (DOA) of wideband sound sources. The proposed framework provides an efficient way to construct a wideband cross-correlation matrix from multiple narrowband cross ...
Bandhit Suksiri, Masahiro Fukumoto
doaj   +1 more source

Generalized-Capon Method for Diff-Tomo SAR Analyses of Decorrelating Scatterers

Remote Sensing, 2019
In synthetic aperture radar (SAR) remote sensing, Differential Tomography (Diff-Tomo) is developing as a powerful crossing of the mature Differential SAR Interferometry and the emerged 3D SAR Tomography.
Fabrizio Lombardini, Francesco Cai
doaj   +1 more source