Research Reports from the Department of Operations

Document Type

Report

Publication Date

11-1-1973

Abstract

A problem in engineering design is formulated and solved as a nonlinear optimization problem. The problem is to design an array of sonar acoustic transducers. Design parameters are the locations of the transducers, and their amplitude shading coefficients and phase delays. The objective is to choose values for these parameters so that the directivity pattern of the array has a narrow main lobe and minimal minor lobe levels. The problem is solved by an interior penalty function method. Results are presented which show significant improvement of the directivity pattern for 2 test problems. A final section discusses the effects varying the frequency of the incoming signal, and of steering the array.

Keywords

Operations research, Sonar, Nonlinear programming, Industrial engineering

Publication Title

Technical Memorandums from the Department of Operations, School of Management, Case Western Reserve University

Issue

Technical memorandum no. 326

Rights

This work is in the public domain and may be freely downloaded for personal or academic use

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