Accession Number : ADD006901

Title :   An Ultrasonic Image System.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Sackman,George L

Report Date : 04 Oct 1979

Pagination or Media Count : 10

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)

Descriptors :   *Patent applications, *Acoustic detection, *Image processing, *Ultrasonics, Undersea surveillance, Data reduction, Computer graphics, Correlation techniques, Contours, Coding, Pseudo random systems, Three dimensional

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE