Accession Number:

AD1062903

Title:

Constant Beam Pattern Array Method

Descriptive Note:

Technical Report

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC WASHINGTON DC United States

Personal Author(s):

• Huang,Dehua

Report Date:

2018-09-19

Pagination or Media Count:

24.0

Abstract:

A method for providing a broadband constant beam pattern acoustic array includes providing an array of transducers in a known three dimensional axisymmetric spherical configuration with each transducer element having an associated signal. A user can specify a far field beam pattern for the array. Weightings are calculated for each transducer in the array as being proportional to the voltage that gives the beam pattern power level associated with the bearing for each transducer. Signal power levels for each transducer are modified in accordance with the weightings. The array can be operated for receiving and transmitting signals with a constant beam pattern over a broad range of frequencies.

Descriptors:

• acoustic arrays
• broadband
• transducers

Subject Categories:

• Acoustic Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE