Accession Number:

ADA411950

Title:

Use of Spherical Objects as Calibrated Mine Hunting Sonar Targets

Descriptive Note:

Technical note

Corporate Author:

DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION SALISBURY (AUSTRALIA) SYSTEMS SCIENCES LAB

Personal Author(s):

Report Date:

2002-12-01

Pagination or Media Count:

34.0

Abstract:

Solid, water-filled and air-filled spheres are investigated for suitability as calibrated targets for active mine hunting sonars operating in the range 10kHz to 200kHz. It is found that all solid and water-filled designs have target strengths that are strongly frequency-dependent, but some air-filled designs are not frequency dependent. It is found that thick-walled spherical glass floats are suitable for some frequency ranges, and thin-walled stainless steel spheres are suitable over the whole frequency range, if they are sufficiently well made and conditions allow their deployment.

Subject Categories:

  • Undersea and Antisubmarine Warfare
  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE