Multibeam sonar with hexagonal array

• Autorzy: Salamon R. , Marszal J. , Kilian L. , Jedel A. , Ostrowski Z. , Raganowicz A. , Rudnicki M. , Wofan Z. , Zachariasz K.
• Konferencja: Proceedings of the 2 nd EAA International Symposium on Hydroacoustics 24-27 May 1999, Gdańsk-Jurata POLAND
• Języki publikacji: EN

Abstrakty

EN

The paper presents a multi-beam digital sonar that was designed for monitoring and fish stock assessment in in/and waters. The sonar can also be used as a bottom profiler in lakes, rivers and shallow sea areas. The hexagonal piezoelectric transducer array co-operates with a commutator set. The 32 -channel digital beamformer creates 30 narrow receiving beams in every 60o sector of simultaneous observation. The six sectors cover the whole 360o angle range of the sonar. The beamformer digital signal processing is based on second order sampling of echo signals and the phase-shifting principle of beam deflection. The sonar block diagram, beamformer algorithms, as well as transducers designs are discussed.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 1999
• Tom: Vol. 2
• Strony: 133--138
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Salamon R.

• Technical University of Gdansk, ul. Narutowicza 11/12, 80-952 Gdansk, POLAND

autor

Marszal J.

• Technical University of Gdansk, ul. Narutowicza 11/12, 80-952 Gdansk, POLAND

autor

Kilian L.

• Technical University of Gdansk, ul. Narutowicza 11/12, 80-952 Gdansk, POLAND

autor

Jedel A.

• Technical University of Gdansk, ul. Narutowicza 11/12, 80-952 Gdansk, POLAND

autor

Ostrowski Z.

• Technical University of Gdansk, ul. Narutowicza 11/12, 80-952 Gdansk, POLAND

autor

Raganowicz A.

• Technical University of Gdansk, ul. Narutowicza 11/12, 80-952 Gdansk, POLAND

autor

Rudnicki M.

• Technical University of Gdansk, ul. Narutowicza 11/12, 80-952 Gdansk, POLAND

autor

Wofan Z.

• Technical University of Gdansk, ul. Narutowicza 11/12, 80-952 Gdansk, POLAND

autor

Zachariasz K.

• Technical University of Gdansk, ul. Narutowicza 11/12, 80-952 Gdansk, POLAND

Bibliografia

• 1. J. Marszal, R. Salamon, L. Kilian, Z. Ostrowski: "Digital Multibeam Sonar for Inland Waters Monitoring", Papers from XV Symposium on Hydroacoustics, Jurata 1998.
• 2. J. Marszal, R. Salamon, L. Kilian, A. Raganowicz, A. Jedel: "Minimisation of the Number of Receiving Channels for a Portable Sonar with a Cylindrical Array", Proceedings of the Fourth European Conference on Underwater Acoustics, Rome 1998.
• 3. Z. Wofan, R. Salamon, L. Kilian, J. Marszal, K. Zachariasz, A. Raganowicz: "Multibeam Sonar with a Digital Beamforrner for Live Resources Monitoring in Inland Waters", Symposium on Fishing Technology IŃSKO, 1999.