Enhanced Processing for a Towed Array Using an Optimal Noise Canceling Approach

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Noise self-generated by a surface ship towing an array in search of a weak target presents a major problem for the signal processing especially if broadband techniques are being employed. In this paper we discuss the development and application of an adaptive noise canceling processor capable of extracting the weak far-field acoustic target in a noisy ocean acoustic environment. The fundamental idea for this processor is to use a model-based approach incorporating both target and ship noise. Here we briefly describe the underlying theory and then demonstrate through simulation how effective the canceller and target enhancer perform. The adaptivity of ... continued below

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8 p. (0.3 MB)

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Sullivan, E J & Candy, J V July 21, 2005.

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Noise self-generated by a surface ship towing an array in search of a weak target presents a major problem for the signal processing especially if broadband techniques are being employed. In this paper we discuss the development and application of an adaptive noise canceling processor capable of extracting the weak far-field acoustic target in a noisy ocean acoustic environment. The fundamental idea for this processor is to use a model-based approach incorporating both target and ship noise. Here we briefly describe the underlying theory and then demonstrate through simulation how effective the canceller and target enhancer perform. The adaptivity of the processor not only enables the ''tracking'' of the canceller coefficients, but also the estimation of target parameters for localization. This approach which is termed ''joint'' cancellation and enhancement produces the optimal estimate of both in a minimum (error) variance sense.

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8 p. (0.3 MB)

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PDF-file: 8 pages; size: 0.3 Mbytes

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  • Presented at: MTS/IEEE Oceans 2005 Conference, Washington, DC, United States, Sep 19 - Sep 23, 2005

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  • Report No.: UCRL-CONF-214610
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 877800
  • Archival Resource Key: ark:/67531/metadc877545

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • July 21, 2005

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • April 17, 2017, 1:34 p.m.

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Sullivan, E J & Candy, J V. Enhanced Processing for a Towed Array Using an Optimal Noise Canceling Approach, article, July 21, 2005; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc877545/: accessed April 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.