The problem of detecting target signals in an ocean environment using active sonar is complicated by the nonstationary background which usually consists of both ambient ocean noise and reverberation. on. In this paper a signal processing system capable of detecting a signal in nonstationary noise is introduced. This system makes use of the mean and variance time functions of the nonstationary noise background in order to design estimation filters which will cope with the nonstationarity. Appropriate statistics of the noise and signal (tone burst) plus noise have been obtained and are used to determine the probabilities of false alarm and detection and the receiver operating characteristics.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    An Adaptive Threshold System for Nonstationary Noise Backgrounds


    Beteiligte:
    Gupta, D.V. (Autor:in) / Vetelino, J.F. (Autor:in) / Curry, T.J. (Autor:in) / Francis, J.T. (Autor:in)


    Erscheinungsdatum :

    01.01.1977


    Format / Umfang :

    1972381 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Statistical characterization of nonhomogeneous and nonstationary backgrounds [3062-05]

    Keckler, A. D. / Stadelman, D. L. / Weiner, D. D. et al. | British Library Conference Proceedings | 1997


    Discrete cosine transform-based local adaptive filtering of images corrupted by nonstationary noise

    Lukin, V.V. / Fevralev, D.V. / Ponomarenko, N.N. et al. | British Library Online Contents | 2010



    Impulse Noise Filter with adaptive Mad-Based Threshold

    Crnojevic, V. | British Library Conference Proceedings | 2005