A Further Study of the Space and Time Stability of a Narrowband Acoustic Signal in the Ocean; Intermediate Range Results
Abstract
The initial analysis of a narrowband signal was conducted for a source-receiver distance of 1000 km (D. G. Browning, P. D. Herstein and P. D. Koenigs, J. Acoust. Soc. Am. 68(S1), S72(A) 1980). Although the bandwidth remained relatively narrow (approximately 3 mHz), it appeared there were distinct frequency components that could be associated with separate ray groups. In order to verify this, a similar analysis has been conducted at an intermediate range (125 km) where preliminary results indicate the components may be resolvable. Space and time variability are given for percentage Doppler shift, bandwidth and intensity. The results are compared to predictions obtained from the Multipath Expansion Option of the Generic Sonar Model.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 05, 1981
- Accession Number
- ADA103044
Entities
People
- D. G. Browning
- P. D. Herstein
- P. D. Koenigs
Organizations
- Naval Underwater Systems Center