Evaluation of the Performance of a Minehunting Sonar
Abstract
The performance of mine hunting sonars fluctuates with the environment, with target characteristics and with operator skill. Because of the variability the sonar performance cannot be reliably evaluated by a single measurement but must be determined as a statistical sampling problem. The detection performance can be assessed by conducting many detection runs at various target aspects and generating probability of detection curves and confidence limits from the results. These data can then be compared to the specified performance. In practice the environmental conditions inevitably deviate from the ideal, are never as specified and usually degrade sonar performance. The influence of the environment can be allowed for by using a sonar performance prediction model, which takes into account the prevailing conditions, to scale the specified detection range and using the range so scaled as the range to be demonstrated. In a similar sampling process the classification performance of a minehunting sonar can be evaluated by determining probabilities of correct classification against a range of mine like and non-mine objects.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1997
- Accession Number
- ADA342568
Entities
People
- J. L. Thompson
- M. J. Bell
Organizations
- Defence Science and Technology Group