Adaptive Acoustic Signal Detection.
Abstract
In this research, optimum ocean-model-based detection algorithms were developed for signals received through an inhomogeneous acoustic ocean medium. These optimal algorithms are driven by the knowledge of the underlying wavefront propagation in an inhomogeneous ocean medium. Comparison of narrowband and broadband performance as a function of range for both range- independent and range-dependent ocean environments were made. In addition, sensitivity of detection performance to mismatch in the sound speed profile as a function of range and transmitted were obtained. A new a posteriori probability source localization algorithm was developed which exhibits much less sensitivity to the underlying assumptions of the ocean acoustic medium (sound speed profiles) than do the classical matched field algorithms. The design and performance of optimal and fault-tolerant distributed detection networks, from a signal detection theory point of view, were also developed. (AN)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1990
- Accession Number
- ADA300502
Entities
People
- L. W. Nolte
Organizations
- Duke University