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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 16 of 16 1 Blind Beamforming for Collaborative Array Processing in Sensor Networks Yao, Kung In: DTIC AND NTIS (2004) BASE Show details 2 Speech to Visual Aid Translator Assembly and Method Belenger, Robert V; Lopriore, Gennaro R In: DTIC AND NTIS (2002) BASE Show details 3 Speech to Touch Translator Assembly and Method In: DTIC AND NTIS (2002) BASE Show details 4 Wavelet-Based Signal and Image Processing for Target Recognition Sherlock, Barry G. In: DTIC AND NTIS (2002) BASE Show details 5 Multi-modal Speech Recognition Workshop 2002 Yoon, Sung H. In: DTIC (2002) BASE Show details 6 Discriminating Speech to Touch Translator Assembly and Method Belenger, Robert V; Lopriore, Gennaro R In: DTIC AND NTIS (2002) BASE Show details 7 A Wavelet Model for Vocalic Speech Coarticulation Lange, R. C. In: DTIC AND NTIS (1994) BASE Show details 8 Evaluation of Communication During Active Sonar Transmissions with a Speech-Recognition Model Marshall, Lynne; Hanna, Thomas E.; Pavlovic, Chaslav V. In: DTIC AND NTIS (1993) BASE Show details 9 Acoustic Classification with Neural Networks Weaver, Charles S.; Branch, Kristina D.; Rumelhart, David E.; Ostrem, John S. In: DTIC AND NTIS (1990) Abstract: A major objective of the research that is described in this report was the preliminary development and testing of neural networks to aid a sonar operator in detecting and classifying sonar signals and signatures. Two networks were developed to recognize a set of sounds that is representative of sonar pulse type signals. The pattern vector inputs were derived from the signal spectra. Both networks are time delay neural networks that classify by recognizing spectral shapes and the first and second differences of spectral shapes. One is a back propagation network and the other is a network that does not contain weights and thus is much simpler than back propagation networks to implement in hardware. Both networks demonstrated a very low false alarm rate and were as accurate or significantly more accurate than the test subjects at signal detection and classification. When the subjects were prompted by a network they were more accurate at finding and classifying the more difficult to detect signals. Our preliminary conclusion is that neural networks will have great value in detecting sonar pulses which is an important signal class. The architecture and understanding of the weightless network that was developed during Phase I leads us to believe that networks of this type may become important in sonar signal analysis. (jhd) Keyword: *NEURAL NETS; *SONAR SOUND ANALYZERS; *TARGET CLASSIFICATION; ACCURACY; ACOUSTIC DETECTION; Acoustic Detection and Detectors; ACOUSTIC SIGNATURES; Computer Programming and Software; DELAY; PE61153N; PROPAGATION; SHAPE; SONAR PERSONNEL; SONAR PULSES; SONAR SIGNALS; TIME INTERVALS; WEIGHTLESSNESS URL: http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA219464 http://www.dtic.mil/docs/citations/ADA219464 BASE Hide details 10 The Intelligibility of Non-Vocoded and Vocoded Semantically Anomalous Sentences. Mack,M A; Gold,B In: DTIC AND NTIS (1985) BASE Show details 11 Perception of Acoustic Transients. Howard,J H , Jr In: DTIC AND NTIS (1984) BASE Show details 12 Underwater Signal Discrimination System. Slaton,Jack H In: DTIC AND NTIS (1980) BASE Show details 13 Mobile Sonar Technology Information Bank. Bardin, J. L. In: DTIC AND NTIS (1973) BASE Show details 14 Description of the Vicens-Reddy Lexicon Candidate Selection Algorithms Kameny, Iris; Rites, H B In: DTIC AND NTIS (1971) BASE Show details 15 An Empirical Equation for the Determination of the Maximum Side-Aspect Target Strength of an Individual Fish Love, Richard H. In: DTIC AND NTIS (1969) BASE Show details 16 A TARGET CLASSIFICATION AID FOR ACTIVE SCANNING SONAR WADDELL, BILL L.; DAVIS, LAURENCE L. In: DTIC AND NTIS (1961) BASE Show details

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