Title :
Acoustic direction finding using a pressure sensor and a uniaxial particle velocity sensor
Author :
Yang Song ; Yiu Lung Li ; Wong, Kainam Thomas
Author_Institution :
Univ. Paderborn, Paderborn, Germany
Abstract :
One isotropic pressure sensor and one uniaxial particle velocity sensor is used in order to estimate the azimuth-elevation angle of arrival of a source impinging from the far field. This work introduces new estimation formulas in closed forms applicable to estimators based on an eigen-decomposition of the data covariance matrix. The validity region for unambiguous estimation is also identified, and the corresponding Cramer-Rao bound is derived as well.
Keywords :
acoustic transducers; angular measurement; covariance matrices; decomposition; direction-of-arrival estimation; pressure measurement; pressure sensors; velocity measurement; Cramér-Rao bound; acoustic direction; azimuth-elevation angle of arrival estimation; data covariance matrix; eigendecomposition; isotropic pressure sensor; uniaxial particle velocity sensor; Acoustics; Azimuthal angle; Covariance matrices; Isotropic pressure sensors; Pressure sensors; Probes; Sensors; Velocity control;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2015.130837
