Roger N Caron

US Patent:

44451865, Apr 24, 1984

Filed:

Jul 2, 1980

Appl. No.:

6/165234

Inventors:

Roger L. Caron - Westford MA
Peter J. Clifford - Barrington RI
Francis R. Germain - Winchester MA

Assignee:

EG&G, Inc. - Wellesley MA

International Classification:

G01D 900

US Classification:

364521

Abstract:

A method and apparatus for producing a linear plan view display of a seabed, employing a side scan sonar signal system, have circuitry for repeatedly determining the height of the transmitting source relative to the seabed, circuitry for sampling the returning sonar signals, and circuitry for providing from the height determination and the sampled signals, the slant range correction needed to provide a linear output display, at least in a direction normal to the direction of movement of the transmitting source. The preferred method and apparatus also have elements for determining the velocity of the transmitting source and for effecting a one-to-one aspect ratio linear plan view of the seabed topography. In other aspects of the invention, a method and apparatus for controlling the display and for implementing the mapping transformation are described.

US Patent:

42323800, Nov 4, 1980

Filed:

Apr 14, 1978

Appl. No.:

5/896474

Inventors:

Roger L. Caron - Westford MA
Peter J. Clifford - Barrington RI
Francis R. Germain - Winchester MA

Assignee:

EG & G, Inc. - Wellesley MA

International Classification:

G01S 1589

US Classification:

367 88

Abstract:

A method and apparatus for producing a linear plan view display of a seabed, employing a side scan sonar signal system, have circuitry for repeatedly determining the height of the transmitting source relative to the seabed, circuitry for sampling the returning sonar signals, and circuitry for providing from the height determination and the sampled signals, the slant range correction needed to provide a linear output display, at least in a direction normal to the direction of movement of the transmitting source. The preferred method and apparatus also have elements for determining the velocity of the transmitting source and for effecting a one-to-one aspect ratio linear plan view of the seabed topography. In other aspects of the invention, a method and apparatus for controlling the display and for implementing the mapping transformation are described.