(a) Bathymetry. (b) Detail from rectangle in Fig. 1(a) ; array position (circle), array line of bearing, and source track (line with single arrowhead).
Bearing-time displays of data segment selected for geo-acoustic inversion; with respect to Fig. 1 , broadside is northeast, and positive bearings are southeast: (a) hydrophone sensors, (b) horizontal acceleration sensors parallel to array LOB.
Beam spectra from (a) hydrophone and (b) accelerometer apertures. The arrows on the right are at the CPA time.
Water sound speed profile used for inversion processing.
Envelopes of cost distribution minima for selected inversion parameters. The envelope minimum is at the parameter value in the inversion solution.
Envelope of cost distribution minima obtained for the 248 Hz source level.
Comparison of modeled TL, computed from the solution for inversion of the hydrophone data, and measured TL, inferred from the inversion solution for source level, at six inversion frequencies.
Comparison of modeled TL, computed from the solution for the inversion of the vector sensor data, and measured TL, inferred from the inversion solution for source level, at six inversion frequencies.
Comparison of measured source levels for R/V Montague and inversion solutions for source levels from hydrophone and vector sensor data.
Solution for geo-acoustics obtained from inversion of hydrophone data.
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