| Autor: |
Baggeroer, A. B., Lashkari, K., Miller, J., Chiu, C. S., Froger, G., Mikhalevsky, P. N., von der Heydt, K. |
| Zdroj: |
Journal of the Acoustical Society of America; 1991, Vol. 90 Issue 4, p2330-2330, 1p |
| Abstrakt: |
A 32-element, 1.3-km vertical array was deployed off Monterey, CA from the R/V Point Sur during the signal transmission from Heard Island. The signals were received with an SNR on a single channel of approximately -10 dB re:1 Hz. Narrow-band filtering to 15 mHz improves this to +5 dB. The suspension system was designed to minimize array motion and array tilt and depth were monitored at two locations in the array. The multichannel data have been decomposed into normal modes using a time varying least-squares representation. Initial processing of the data indicates the first four modes can represent 75% of the energy of the average projection over a 180-s window. The time-varying structure of the representation and the effect of array tilt and Doppler spread will also be discussed. [Work supported by Dept. of Energy, Monterey Bay Aquarium Res. Inst. and the Commander, Naval Postgraduate School.] [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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