Accession Number : ADD016067
Title : Null Steering Device.
Descriptive Note : Patent, Filed 17 Jun 77, patented 12 Oct 93,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Coulbourn, Dixon W
Report Date : 12 Oct 1993
Pagination or Media Count : 5
Abstract : A device for steering a null in a sonar beam pattern resolves first and second beam signals into four quadrature components. These components are multiplied in multiplying digital to analog converters by binary number factors, derived in accordance with the desired null angle, to provide analog signals that are combined in a summing amplifier to provide analog output corresponding to acoustic energy received by a beam having a null at the desired angle.
Descriptors : *BEAM STEERING, *NULLS(AMPLITUDE), *ACOUSTIC TORPEDOES, *SUBMARINE DETECTION, *PATENTS, AMPLIFIERS, ANALOG SIGNALS, ANGLES, CONVERTERS, DIGITAL TO ANALOG CONVERTERS, PATTERNS, SONAR, ACOUSTIC SIGNALS, SONAR SIGNALS, TORPEDO TARGETS, COUNTER COUNTERMEASURES
Subject Categories : Acoustic Detection and Detectors
Distribution Statement : APPROVED FOR PUBLIC RELEASE