An Ultrasonic Image System.
Abstract
A contour map underwater ultrasonic image system simultaneously used a large time-bandwidth product signal waveforms for extremely fine range resolution, and an image memory organized as a three-dimensional data base of object reflectivity. The transmitted waveform is a pseudo-random binary coded signal. A plurality of correlator receives produce a time-compressed pulse for each angular resolution cell. An image memory receivers the output of the correlator receivers and builds up a three-dimensional data base of echoes in the form of a set of contour lines for each range cell. Standard computer-graphic techniques are used to accept the three-dimensional data base and generate displays to assist an operator in identifying the object. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 04, 1979
- Accession Number
- ADD006901
Entities
People
- George L. Sackman
Organizations
- United States Department of the Navy