Aspects of Signal Processing With Emphasis on Underwater Acoustics, Part 2

G. Tacconi

ISBN 10: 9027708002 / ISBN 13: 9789027708007

Published by Springer Netherlands Apr 1977, 1977

About this Item

This item is printed on demand - it takes 3-4 days longer - Neuware -This paper describes the results of current research at DREA in which techniques of optimum array processing are being applied to active sonar. We are presenting these results at the Advanced Study Institute in order to illustrate some actual applications for such processing and to point out some of the practical considerations which arise in real systems. In particular, the paper concerns the problems which arise when the individual sensor elements have a complicated directivity pattern themselves. This is a common phenomenon in active systems where the receiving sensors are complex resonant structures and are housed in a dome or towed body presenting various baffling and diffraction effects. Most treatments of array processing consider ideal elements which have well behaved directivity properties and are transparent to the field. The results of this paper show that where these properties are not met, careful in situ array measurements are required, and even with such measurements practical array gains may not be as good as predictions based on ideal sensors. 404 pp. Englisch.

Seller Inventory # 9789027708007

Bibliographic Details

• Title: Aspects of Signal Processing With Emphasis on Underwater Acoustics, Part 2
• Publisher: Springer Netherlands Apr 1977
• Publication Date: 1977
• Language: English
• ISBN 10: 9027708002
• ISBN 13: 9789027708007
• Binding: Buch
• Condition: Neu
• Dimensions: 241W x 160H x 27D millimeters 241 millimeters width by 160 millimeters height by 27 millimeters depth
• Weight: 770 grams

About this title

Synopsis

This paper describes the results of current research at DREA in which techniques of optimum array processing are being applied to active sonar. We are presenting these results at the Advanced Study Institute in order to illustrate some actual applications for such processing and to point out some of the practical considerations which arise in real systems. In particular, the paper concerns the problems which arise when the individual sensor elements have a complicated directivity pattern themselves. This is a common phenomenon in active systems where the receiving sensors are complex resonant structures and are housed in a dome or towed body presenting various baffling and diffraction effects. Most treatments of array processing consider ideal elements which have well behaved directivity properties and are transparent to the field. The results of this paper show that where these properties are not met, careful in situ array measurements are required, and even with such measurements practical array gains may not be as good as predictions based on ideal sensors.