Results 11 to 20 of about 378,418 (314)

Spatial audio signal processing for binaural reproduction of recorded acoustic scenes – review and challenges

open access: yesActa Acustica, 2022
Spatial audio has been studied for several decades, but has seen much renewed interest recently due to advances in both software and hardware for capture and playback, and the emergence of applications such as virtual reality and augmented reality.
Rafaely Boaz   +9 more
doaj   +1 more source

Multi-Objective NSGA-II Optimization for Broadband Beamforming with Spherical Harmonic Domain Assistance

open access: yesSensors, 2023
Sidelobe suppression is a major challenge in wideband beamforming for acoustic research, especially in high noise and reverberation environments. In this paper, we propose a multi-objective NSGA-II wideband beamforming method based on a spherical ...
Zhenghong Liu   +4 more
doaj   +1 more source

Time-Matching Random Finite Set-Based Filter for Radar Multi-Target Tracking

open access: yesSensors, 2018
The random finite set (RFS) approach provides an elegant Bayesian formulation of the multi-target tracking (MTT) problem without the requirement of explicit data association.
Defu Jiang   +5 more
doaj   +1 more source

DOA Estimation Based on Real-Valued Cross Correlation Matrix of Coprime Arrays

open access: yesSensors, 2017
A fast direction of arrival (DOA) estimation method using a real-valued cross-correlation matrix (CCM) of coprime subarrays is proposed. Firstly, real-valued CCM with extended aperture is constructed to obtain the signal subspaces corresponding to the ...
Jianfeng Li, Feng Wang, Defu Jiang
doaj   +1 more source

Low-Complexity Propagator Based Two Dimensional Angle Estimation for Coprime MIMO Radar

open access: yesIEEE Access, 2018
The problem of 2-D angle estimation for coprime multiple-input multiple-output (MIMO) radar is considered, and a low-complexity propagator based method is proposed.
Jianfeng Li, Defu Jiang
doaj   +1 more source

Holographic array processing using truncated arrays [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1993
Imperfect knowledge of the salient characteristics of the propagation medium limits the performance of acoustic array processors at long ranges in the ocean. Holographic and phase conjugation techniques can be used to diminish the range integrated effect of the medium and reconstruct the wave front in the vicinity of a scatterer or other signal source.
Azmi A. Al-Kurd, Robert P. Porter
openaire   +1 more source

Dimension degradation of fractionally spaced super-exponential algorithm for sparse channel equalisation

open access: yesThe Journal of Engineering, 2019
Fractionally spaced super-exponential (FSSE) algorithm has the disadvantage of computational complexity since it exploits high-order statistics explicitly.
JinLiang Bai   +4 more
doaj   +1 more source

Constant-Beamwidth Beamforming with Concentric Ring Arrays

open access: yesSensors, 2021
Designing beampatterns with constant beamwidth over a wide range of frequencies is useful in many applications in speech, radar, sonar and communication. In this paper, we design constant-beamwidth beamformers for concentric ring arrays.
Avital Kleiman   +2 more
doaj   +1 more source

Direction of Arrival Estimation of Quasi-Stationary Signals Using Unfolded Coprime Array

open access: yesIEEE Access, 2017
Direction of arrival (DOA) estimation of quasi-stationary signals (QSS) is discussed in this paper, and an algorithm using unfolded coprime array is proposed.
Jianfeng Li, Xiaofei Zhang
doaj   +1 more source

SCaLAr – A surrounding spherical cap loudspeaker array for flexible generation and evaluation of virtual acoustic environments

open access: yesActa Acustica, 2020
Introduction: Surrounding spherical loudspeaker arrays facilitate the application of various spatial audio reproduction methods and can be used for a broad range of acoustic measurements and perceptual evaluations.
Pausch Florian   +2 more
doaj   +1 more source

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