Abstract
This paper introduces a new and computationally efficient direction finding (DF) algorithm that (1) exploits the velocity vector-field information of impinging wave front (vs. the scalar wavefield model using only pressure-hydrophones), (2) estimates both elevation angles and azimuth angles, (3) requires rooting only two polynomials and no costly iterative searches. This paper successfully adopts the Root-MUSIC algorithm to L-shaped arrays of triads of co-located but orthogonally oriented velocity hydrophones. Each velocity hydrophone measures one Cartesian component of the acoustic velocity vector-wavefield. In one two-signal scenario, this new algorithm increases estimation accuracy by about 3 folds and lowers the resolution threshold by 25 dB SNR relative to a pressure-hydrophone array of comparable hardware and software complexity.
| Original language | English |
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| Title of host publication | Midwest Symposium on Circuits and Systems |
| Publisher | IEEE |
| Pages | 677-680 |
| Number of pages | 4 |
| Publication status | Published - 1 Dec 1996 |
| Externally published | Yes |
| Event | Proceedings of the 1996 IEEE 39th Midwest Symposium on Circuits & Systems. Part 3 (of 3) - Ames, IA, United States Duration: 18 Aug 1996 → 21 Aug 1996 |
Conference
| Conference | Proceedings of the 1996 IEEE 39th Midwest Symposium on Circuits & Systems. Part 3 (of 3) |
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| Country/Territory | United States |
| City | Ames, IA |
| Period | 18/08/96 → 21/08/96 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials