Patent · US Expired

Automatic underwater null steering

US4228531A · kind A · utility

3Cited by

2References

3Claims

0Family size

Assignee

United States of America as represented by the Secretary of the Air Force · US

Inventors

Bruce P. Bogert · Morristown, US
Peter Hirsch · Aachen, DE

Key dates

Filing date	Sep 17, 1970
Grant date	Oct 14, 1980
Priority date	—
Expiry date	Sep 17, 1990

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S367/901
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Means are provided for reducing the dynamic range requirement of an underer sound system by minimizing the effects of noise interference. Computer means are provided to automatically rotate the pattern function of the combination of the dipole hydrophones in the system. A minimum noise pattern position is derived from hydrophone output information.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.