Beam steering response matrix inversion method: Accurate localization of simultaneous high and low frequency sources using a small line array
The Beam Steering Response (BSR) Matrix Inversion Method is a technique using a small line array that, when mathematically steered to populate a BSR matrix, can simultaneously resolve the locations of multiple sources. Using this technique, high directivity over a wide frequency range may be achieve...
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| Published in: | The Journal of the Acoustical Society of America Vol. 132; no. 3_Supplement; p. 2082 |
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| Main Author: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
01-09-2012
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| Online Access: | Get full text |
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| Summary: | The Beam Steering Response (BSR) Matrix Inversion Method is a technique using a small line array that, when mathematically steered to populate a BSR matrix, can simultaneously resolve the locations of multiple sources. Using this technique, high directivity over a wide frequency range may be achieved with a small array. Simultaneous tracking of multiple low and high frequency sources is demonstrated using the BSR Matrix Inversion Method with an acoustic video camera having a 49 inch, 8 element line array. This paper addresses 1) the derivation of the Beam Steering Response matrix, 2) line array design considerations, 3) processing limitations, and 4) a practical demonstration of the BSR Matrix Inversion Method. |
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| ISSN: | 0001-4966 1520-8524 |
| DOI: | 10.1121/1.4755688 |