THE EFFECT OF WIND SPEED ON THE SPATIAL CORRELATION OF AMBIENT NOISE,
Abstract
Measurements of spatial correlation of ambient noise have been made in Bermuda over an 18-month period by means of a deep-water, bottom-mounted, vertical hydrophone array. Comparisons of these mean correlation values with theoretical values, which are based upon a surface-generated directional noise model, have been made for four frequency bands with wind speed as a parameter. The experimental and theoretical values show excellent agreement for frequency bands of 400-600 cps, 600-800 cps, and 800-1000 cps, regardless of the wind-speed conditions. For the frequency band of 200-400 cps, the agreement is wind-speed dependent: Better agreement is obtained at the higher wind speeds. These results serve to verify the applicability of the noise model for the higher frequencies (400-600 cps, 600-800 cps, and 800-1000 cps) and for the low frequencies (200-400 cps) when the surface noise levels are high enough to predominate over any horizontal noise components. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 09, 1966
- Accession Number
- AD0632912
Entities
People
- Beverly C. Hassell
- Frank J. Keltonic
Organizations
- Navy Underwater Sound Laboratory