Active Sonar Target Classification. Volume II. Theoretical.
Abstract
The familiar echo ranging situation using present day sonar design was modeled as a communication problem. There are probably many theoretically possible signatures in the echo for identifying a target, but in this case the direct screw wake signature was selected. This selection was made because it seems possible to have a prior knowledge about it's shape which would permit the use of matched filter techniques. These techniques along with interpulse averaging are found necessary to overcome the adverse signal to noise ratio that exists. Accordingly, this study discusses the signature of the screw wake return and the approximate signal to noise ratio. Time has not permitted any detailed statistical analyses of the random noises, so the only assumption made is that they are stationary at least over some suitable period. The model given here is not necessarily accurate at this stage, but represents a foundation on which to build.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 20, 1965
- Accession Number
- ADA069136
Entities
People
- F. Baganoff
Organizations
- McDonnell Aircraft Corporation