Particle velocity gradient based acoustic mode beamforming for short linear vector sensor arrays
B Gur - The Journal of the Acoustical Society of America, 2014 - pubs.aip.org
In this paper, a subtractive beamforming algorithm for short linear arrays of two-dimensional
particle velocity sensors is described. The proposed method extracts the highly directional …
particle velocity sensors is described. The proposed method extracts the highly directional …
A directionally tunable but frequency-invariant beamformer on an acoustic velocity-sensor triad to enhance speech perception
Part of this work was presented in the International Conference on Networked Sensing
Systems, held in Penghu, Taiwan, on June 12–15, 2011 [KT Wong, YI Wu, X. Yuan, S. k …
Systems, held in Penghu, Taiwan, on June 12–15, 2011 [KT Wong, YI Wu, X. Yuan, S. k …
Design of Fully Steerable Differential Beamformers with Linear Superarrays
Linear differential microphone arrays (LDMAs) are commonly integrated into thin and
portable devices to achieve high-fidelity speech acquisition. Traditional LDMAs typically …
portable devices to achieve high-fidelity speech acquisition. Traditional LDMAs typically …
Higher-order figure-8 microphones/hydrophones collocated as a perpendicular triad—Their “spatial-matched-filter” beam steering
Directional sensors, if collocated but perpendicularly oriented among themselves, would
facilitate signal processing to uncouple the azimuth-polar direction from the time-frequency …
facilitate signal processing to uncouple the azimuth-polar direction from the time-frequency …
Closed-form direction finding using collocated but orthogonally oriented higher order acoustic sensors
This paper introduces new closed-form formulas to estimate an incident source's azimuth-
elevation angle-of-arrival, for various combinations of higher order directional acoustic …
elevation angle-of-arrival, for various combinations of higher order directional acoustic …
Processing of translational and rotational motions of surface waves: performance analysis and applications to single sensor and to array measurements
The analysis of rotational seismic motions has received considerable attention in the last
years. Recent advances in sensor technologies allow us to measure directly the rotational …
years. Recent advances in sensor technologies allow us to measure directly the rotational …
Beamforming pointing error of a triaxial velocity sensor under gain uncertainties
A “triaxial velocity sensor” consists of three uniaxial velocity sensors, which are nominally
identical, orthogonally oriented among themselves, and co-centered at one point in space. A …
identical, orthogonally oriented among themselves, and co-centered at one point in space. A …
Two Cardioid Sensors in Perpendicular Colocation–Their “Spatial Matched Filter" Beam Steering
Cardioid microphones/hydrophones have been commonplace in practical acoustics. Indeed,
cardioid sensors are widely obtainable in retail as diverse commercial models produced by …
cardioid sensors are widely obtainable in retail as diverse commercial models produced by …
Cramer-Rao lower bound for DOA estimation using vector and higher-order sensor arrays
H Lai, K Bell - 2007 Conference Record of the Forty-First …, 2007 - ieeexplore.ieee.org
The Cramer-Rao lower bound for estimating the azimuth and elevation angles of multiple
planewave sources using a line array of general n th-order sensors is derived, generalizing …
planewave sources using a line array of general n th-order sensors is derived, generalizing …
Acoustic vector-sensor array processing
JP Kitchens - 2010 - dspace.mit.edu
Existing theory yields useful performance criteria and processing techniques for acoustic
pressure-sensor arrays. Acoustic vector-sensor arrays, which measure particle velocity and …
pressure-sensor arrays. Acoustic vector-sensor arrays, which measure particle velocity and …