Mutual interferences reduction between sonars or barrier modules operating in the same area

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

Abstrakty

EN

This paper describes key features of a Mutual Interference Reduction (MIR) in sea area, especially in shallow water, where some acoustic devices may operate simultaneously. MIR is an essential problem in mono– and multistatic systems. Receivers of sonars or barrier modules, operating in these systems, can receive signals from other acoustic devices by direct track, as echoes from the targets or as reverberations. The mutual sonars interference level depends on many parameters, like: the transmitting signal parameters (modulation, SL, B, T) and bands aliasing, mutual sectors coverage, the distance and mutual localization of trans-mitting transducers and receiving arrays, as well as type of matched filtration. The degrada-tion of mutual interferences by matched filtration has been determined. Influence of modula-tion type, B and T parameters on MIR at the matched filtration output have been presented also.

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2007
• Tom: Vol. 10
• Strony: 39--44
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Elminowicz A.

autor

Zajączkowski L.

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

Bibliografia

• [1] M A. Ainslie, Bistatic Sonar Performance Assessment. UDT Europe, London, 2000.
• [2] A. Elminowicz, L. Zajączkowski, Multistatic Systems, XXII Symposium on Hy-droacoustic, Krynica Morska 2006.
• [3] A. Elminowicz, The Harbour and Anchorage Protection by Underwater Acoustic Barri-ers, UDT Europe, Hamburg 2006.
• [4] A. Elminowicz, L. Zajączkowski, Bistatic Systems, Archives of Acoustics, Vol. 31, No 4, Warszawa 2006.
• [5] A. Jedel, R. Salamon, J. Marszal, J. Kaczmarek, Z. Ostrowski, Mutual Interference Re-duction in Pulse Sonars with Frequency Modulation, OSA 27, Polanica 2001.