Accession Number : ADA263995


Title :   Application of Polynomial Neural Networks to Classification of Acoustic Warfare Signals


Descriptive Note : Final technical rept. 20 Aug 1989-31 Mar 1993


Corporate Author : BARRON ASSOCIATES INC STANARDSVILLE VA


Personal Author(s) : Ward, David G ; Barron, Roger L ; Parker, Jr, B E


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a263995.pdf


Report Date : Apr 1993


Pagination or Media Count : 201


Abstract : For both estimation and classification problems, the benefits of using artificial neural networks include inductive learning, rapid computation, and the ability to handle high-order and/or nonlinear processing. Neural networks reduce the need for simplifying assumptions that use a priori statistical models (such as 'additive Gaussian noise') or that neglect nonlinear terms, cross-coupling effects, and high-order dynamics. This report demonstrates the usefulness for acoustic warfare applications of an interdisciplinary approach that applies the rigorous theory and algorithms of statistical learning theory to the field of artificial neural networks. In particular, this approach provides two important results; (1) a generalized way of viewing neural modeling in terms of statistical function estimation, and (2) a constrained minimum- logistic-loss polynomial neural network (PNN) classification algorithm. These classification neural networks train rapidly, provide improved discrimination, and use an information-theoretic approach to limit structural complexity and thus avoid over-fitting training data. The report documents the successful application of these algorithms for the purpose of discriminating among broadband acoustic warfare signals and makes recommendations concerning further improvement of the algorithms. Artificial neural networks, Acoustic warfare, Sonar signal, Estimation, Machine learning, Processing, Classification, Modeling.


Descriptors :   *SIGNAL PROCESSING , *NEURAL NETS , *UNDERWATER ACOUSTICS , *ACOUSTIC WARFARE , ALGORITHMS , COMPUTATIONS , TRAINING , DYNAMICS , THEORY , SIGNALS , DOCUMENTS , BENEFITS , DISCRIMINATION , NOISE , ACOUSTICS , ADDITIVES , MACHINES , LOGISTICS , CLASSIFICATION , BROADBAND , APPROACH , STATISTICAL FUNCTIONS , COUPLINGS , SONAR SIGNALS , SONAR , LEARNING , POLYNOMIALS , GAUSSIAN NOISE , PROCESSING , NETWORKS , MODELS , FUNCTIONS , WARFARE


Subject Categories : Computer Systems
      Acoustic Detection and Detectors


Distribution Statement : APPROVED FOR PUBLIC RELEASE