Digital mono-pulse method in cylindrical antenna

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Authors

  • W. Leśniak Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Marine Electronics Systems, Narutowicza 11/12, 80-952 Gdańsk, Poland
  • J. Marszal Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Marine Electronics Systems, Narutowicza 11/12, 80-952 Gdańsk, Poland
  • R. Salamon Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Marine Electronics Systems, Narutowicza 11/12, 80-952 Gdańsk, Poland
  • M. Rudnicki Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Marine Electronics Systems, Narutowicza 11/12, 80-952 Gdańsk, Poland
  • A. Schmidt Gdańsk University of Technology, Faculty of Electronics, Telecommunications and Informatics, Department of Marine Electronics Systems, Narutowicza 11/12, 80-952 Gdańsk, Poland

Abstract

The article presents a method designed to improve the accuracy of cylindrical antenna multi-beam sonar performance. The method is based on the mono-pulse method used in radars and sonars. It provides good bearing accuracy in a single sounding action. The only change required is the generation of two deflected beams and some simple computations. The new approach to mono-pulse technique, with application of digital signal processing is presented in the paper. The computer simulations proved, that good bearing accuracy can be obtained even for a relatively low signal to noise ratio.

Keywords:

passive sonar, cylindrical array, signal processing, spatial spectrum.