logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12571911 B1

PDFFull Text
Date of Patent:
Mar. 10, 2026

Filed:

Mar. 13, 2022

Sonar method for detecting and/or determining the position and/or speed of objects underwater in a specified region, sonar assembly, and receiving unit

Applicant:

Christian-albrechts-universitaet Zu Kiel, Kiel, DE;

Inventors:

Gerhard Schmidt, Moenkeberg, DE;

Eckhard Quandt, Heikendorf, DE;

Hanna Lewitz, Kiel, DE;

Tim Owe Wisch, Kiel, DE;

Bastian Kaulen, Kiel, DE;

Alexej Namenas, Kiel, DE;

Frederik Kuehne, Kiel, DE;

Assignee:

Christian—Albrechts—Universitaet Zu Kiel, Kiel, DE;

Attorneys:

Patent Central, LLC

Stephan A. Pendorf

Primary Examiner:

Daniel Pihulic

Int. Cl.
CPC ...
G01S 15/00 (2020.01); G01S 7/536 (2006.01); G01S 15/52 (2006.01); G01S 15/58 (2006.01);
U.S. Cl.
CPC ...
G01S 15/003 (2013.01); G01S 7/536 (2013.01); G01S 15/523 (2013.01); G01S 15/586 (2013.01);
Abstract

A sonar method and assembly for detecting and/or determining the position and/or speed of objects underwater and/or on the water in a specified region. The orthogonality of Doppler-shifted transmission sequences is explored. First, a transmission sequence is generated, spread for some possible Doppler shifts and output via the transmission elements. If the transmission sequence is chosen carefully, the spread versions become orthogonal to each other and enable MIMO signal processing. If one of the assumed spreads matches the speed of the object, the spread is canceled out again to form the original transmission signal. This allows the binary detection of the presence of an object with the correlation of only one sequence and reduces the computing effort at the respective receivers enormously.

Find Patent Forward Citations

Schmidt, Gerhard. (2026). Sonar method for detecting and/or determining the position and/or speed of objects underwater in a specified region, sonar assembly, and receiving unit (U.S. Patent No. 12571911). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12571911

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…