NDLI: Implementation of adaptive and synthetic-aperture processing schemes in integrated active-passive sonar systems

Content Provider	IEEE Xplore Digital Library
Author	Stergiopoulos, S.
Copyright Year	1963
Abstract	Progress in the implementation of state-of-the-art signal processing schemes in sonar systems is limited mainly by the moderate advance made in sonar computing architectures and the lack of operational evaluation of the advanced processing schemes. Until recently, matrix-based processing techniques, such as adaptive and synthetic-aperture processing, could not be efficiently implemented in the current type of sonar systems, even though it is widely believed that they have advantages that can address the requirements associated with the difficult operational problems that next-generation sonars will have to solve. Interestingly, adaptive and synthetic-aperture techniques may be viewed by other disciplines as conventional schemes. For the sonar technology discipline, however, they are considered as advanced schemes because of the very limited progress that has been made in their implementation in sonar systems. This paper is intended to address issues of implementation of advanced processing schemes in sonar systems and also to serve as a brief overview to the principles and applications of advanced sonar signal processing. The main development reported in this paper deals with the definition of a generic beam-forming structure that allows the implementation of nonconventional signal-processing techniques in integrated active-passive sonar systems. These schemes are adaptive and synthetic-aperture beam formers that have been shown experimentally to provide improvements in array gain for signals embedded in partially correlated noise fields. Using target tracking and localization results as performance criteria, the impact and merits of these techniques are contrasted with those obtained using the conventional beam former.
Sponsorship	IEEE Publication
Starting Page	358
Ending Page	398
Page Count	41
File Size	1592882
File Format	PDF
ISSN	00189219
Volume Number	86
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-02-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Acoustic beams Sonar equipment Adaptive signal processing Adaptive arrays Acoustic noise Covariance matrix Sonar detection Sensor arrays Frequency Electronic switching systems
Content Type	Text
Resource Type	Article
Subject	Computer Science Electrical and Electronic Engineering

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Prolog To Implementation Of Adaptive And Synthetic-aperture Processing Schemes In Integrated Active-passive Sonar Systems

Adaptive beamforming with near-instantaneous convergence for matched filter processing

Evaluation of an orthogonal beamforming procedure using real data

Passive acoustic synthetic aperture processing techniques

Passive Synthetic Aperture Sonar techniques in combination with tow ship noise canceling: application to a triplet towed array

Studies on frequency domain acoustic signal detection method with a small aperture sensor array

Passive sonar limits upon nulling multiple moving ships with large aperture arrays

Robust adaptive beamforming for passive sonar using eigenvector/beam association and excision

Broad-band synthetic aperture sonar

Implementation of adaptive and synthetic-aperture processing schemes in integrated active-passive sonar systems

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