System and Method for Stochastic Characterization of Sparse, Four-Dimensional, Underwater-Sound Signals
Abstract
A signal processing system provides and processes a digital signal, converted from to an analog signal, which includes a noise component and possibly also an information component comprising small samples representing four mutually orthogonal items of measurement information representable as a sample point in a symbolic Cartesian four-dimensional spatial reference system. An information processing sub-system receives said digital signal and processes it to extract the information component. A noise likelihood determination sub-system receives the digital signal and generates a random noise assessment of whether or not the digital signal comprises solely random noise, and if not, generates an assessment of degree-of-randomness. The information processing system is illustrated as combat control equipment for undersea warfare, which utilizes a sonar signal produced by a towed linear transducer array, and whose mode operation employs four mutually orthogonal items of measurement information.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 22, 2001
- Accession Number
- ADD019982
Entities
People
- Chung T. Nguyen
- Francis J. O'brien Jr.
Organizations
- United States Department of the Navy