Correction of frequency distortion of the DDS signals

• Autorzy: Elminowicz A. , Zajączkowski L.
• Języki publikacji: EN

Abstrakty

EN

The Diver Detection Sonar (DDS) as a surveillance system has been designed to monitor the threat of underwater attacks against harbours, ships, naval bases, coastal industrial installations, oil platforms etc. This paper describes technical complexity of designing wideband DDS, with increased coverage effectiveness and following additional advantages: improved range resolution, high signal to noise and reverberation ratio and possibility operation of several sonars in the same frequency band using different type of modulation. The article presents technological principles and problems related to the wideband sig-nals transmitting and receiving by cylindrical piezocomposite transducer as well as implementation of the broadband compression technique for correction of frequency distortion.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2010
• Tom: Vol. 13
• Strony: 83--88
• Opis fizyczny: Bibliogr. 2 poz., rys.

Twórcy

autor

Elminowicz A.

autor

Zajączkowski L.

• R&D Marine Technology Centre Dickmana 62 Str., 81-109 Gdynia, Poland [e-mail]

Bibliografia

• [1] A. Elminowicz, L. Zajączkowski, Modelling of Narrow and Wideband Signal Scattering by Randomly Distributed Scattering Points, OSA 2007, Przemyśl.
• [2] A. Elminowicz, Z. Klusek, J. Tęgowski, J. Szczucka, Underwater Acoustic Barrier In Harsh Reverberation Environment, UDT 2007, Naples.