Accession Number:

ADA156211

Title:

Detection and Recognition Performance of Sonar Operators in a Multimodal Task

Descriptive Note:

Interim rept.

Corporate Author:

NAVAL SUBMARINE MEDICAL RESEARCH LAB GROTON CT

Report Date:

1985-04-26

Pagination or Media Count:

18.0

Abstract:

The problem of this research was to determine if auditory, visual or the multimodal approach is best for detection and classification of real world targets. Actual auditory and visual sonar displays have not been used in previous investigations and, therefore, were used in present study. Trained sonar operators participated in a detection and classification task. Stimuli were presented in three conditions auditory and visual modalities independently and simultaneously multimodal. Elapsed time and signal-to-noise SN ratios were recorded. The best modality for target detection was found to be target specific. However, the multimodal condition was not significantly different from the single modality and, therefore, should be used for initial target detection in the operating setting. The difference from findings in previous studies is discussed. Keywords Multimodal sonar performance detection recognition.

Subject Categories:

  • Personnel Management and Labor Relations
  • Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE