Detection and Recognition Performance of Sonar Operators in a Multimodal Task
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 (S/N) 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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 26, 1985
- Accession Number
- ADA156211
Entities
People
- C. Schlichting
- D. A. Kobus
- G. Haskell
- J. Russotti
- J. Wojtowicz
- Steven Carpenter
Organizations
- Naval Submarine Medical Research Laboratory