Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/6616
Title: | Azimuth-elevation direction finding using a microphone and three orthogonal velocity sensors as a non-collocated subarray | Authors: | Song, Y Wong, KT |
Issue Date: | Apr-2013 | Source: | Journal of the Acoustical Society of America, Apr. 2013, v. 133, no. 4, p. 1987-1995 | Abstract: | An acoustic vector-sensor consists of three identical but orthogonally oriented acoustic particle-velocity sensors, plus a pressure sensor—all spatially collocated in a point-like geometry. At any point in space, this tri-axial acoustic vector-sensor can sample an acoustic wavefield as a 3 × 1 vector, instead of simply as a scalar of pressure. This vector, after proper self-normalization, would indicate the incident wave-field's propagation direction, and thus the incident emitter's azimuth-elevation direction-of-arrival. This “self-normalization” direction-of-arrival estimator is predicated on the spatial-collocation among the three particle-velocity sensors and the pressure-sensor. This collocation constriction is relaxed here by this presently proposed idea, to realize a spatially distributed acoustic vector-sensor, allowing its four component-sensors to be separately located. This proposed scheme not only retains the algorithmic advantages of the aforementioned “self-normalization” direction-of-arrival estimator, but also will significantly extend the spatial aperture to improve the direction-finding accuracy by orders of magnitude. | Keywords: | Cerenkov counters Direction of arrival Vector spaces Vectors Velocity control |
Publisher: | Acoustical Society of America | Journal: | Journal of the Acoustical Society of America | ISSN: | 0001-4966 | EISSN: | 1520-8524 | DOI: | 10.1121/1.4792149 | Rights: | Copyright 2013 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in Song, Y., & Wong, K. T. (2013). Azimuth-elevation direction finding using a microphone and three orthogonal velocity sensors as a non-collocated subarray. Journal of the Acoustical Society of America, 133(4), 1987-1995 and may be found at http://scitation.aip.org/content/asa/journal/jasa/133/4/10.1121/1.4792149. |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Song_Azimuth-elevation_Direction_Microphone.pdf | 566.44 kB | Adobe PDF | View/Open |
Page views
124
Last Week
1
1
Last month
Citations as of Mar 24, 2024
Downloads
244
Citations as of Mar 24, 2024
SCOPUSTM
Citations
19
Last Week
0
0
Last month
0
0
Citations as of Mar 28, 2024
WEB OF SCIENCETM
Citations
17
Last Week
0
0
Last month
0
0
Citations as of Mar 28, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.