Vertical Directionality of Noise and Signal Transmissions During Operation Church Anchor.

摘要

A vertical array of 20 vibration isolated hydrophones was suspended from the Research Platform FLIP at various depths from 713m to 4816m. Preformed sets of beams were formed with a digital beamformer to observe the vertical noise distribution at three to four frequencies between 20 and 100 Hz. Directional spectra derived from 10 minutes samples of digital records are presented. Several contour plots of amplitude distributions are also shown for both signal and noise records.