Optimal linear array heading in a directional noise field

This thesis discusses a procedure that optimizes the signal-to-noise ratio (SNR) detected by a linear array in a directional ambient noise field. The SNR can be optimized by minimizing the ambient noise detected by the array. For a given target location, each possible heading of the array centers the ambiguous beam of the array at a different true bearing. Therefore, each heading of the array will receive a different ambient noise level. An optimal heading can be obtained which maximizes the SNR received by the array. For all possible headings the beam pattern of the array must be determined and combined with the ambient noise field to determine the noise level detected. This thesis discusses the theory involved in calculating the ambient noise levels detected for each heading and provides a computer program which performs the calculations for a particular array. Linear arrays, Directional ambient noise, Optimal signal-noise ratio.

Grantor dc:publisher

Monterey, CA; Naval Postgraduate School

Year dc:date.issued

1992

Author dc:creator

• McDonnell, David C.

Advisors dc:contributor.advisor

• Coppens, Alan B.
• Ziomek, Lawrence J.

Statement dc:rights

• This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.

Handle dc:identifier.uri

https://hdl.handle.net/10945/30612

OAI identifier oai:identifier

oai:calhoun.nps.edu:10945/30612