A Design Method for Unequally Spaced Sonar Arrays.
Abstract
A simplified design procedure for unequally spaced sonar arrays is presented in this report. The simplification is accomplished by employing a relation between the current in a given piezoelectric element and the area of the radiating surface of that element. This relation is used to adapt a standard amplitude shading technique to the spacing of the array. A 50 wavelengths long unshaded array, of 60 elements, is used to illustrate the design technique. The beam pattern of the resulting array (calculated using a standard summation formula for discrete radiators) exhibits side lobe levels of -21 dB and a half-power beamwidth of 1.4 degree. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 22, 1973
- Accession Number
- AD0755481
Entities
People
- Michael L. Boyd
Organizations
- University of Texas at Austin