Mutual Clutter Suppression Techniques for FM Sonars

• Autorzy: Marszal J. , Rudnicki M. , Jedel A. , Salamon R. , Kochańska I.

Identyfikatory

DOI

10.1515/aoa-2016-0069

• Języki publikacji: EN

Abstrakty

EN

The article presents methods that help in the elimination of mutual clutter as well as the consequences of two FM sounding signal sonars operating in the same body of water and frequency band. An in-depth analysis of mutual clutter was carried out. The effects of sounding signal differentiation were determined, as was the Doppler effect on mutual clutter suppression. One of the methods analysed is of particular interest in a situation in which collaborating sonars are operating in opposite frequency modulation directions. This method is effective for both linear and hyperbolic frequency modulations. A formula was derived, identifying exactly how much quantities of clutter may be lessened. The work included comprehensive computer simulations and measurements as well as tests in real-life conditions.

Słowa kluczowe

EN

sonar; signal processing; FM; LFM; HFM; clutter; crosstalk

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2016
• Tom: Vol. 41, No. 4
• Strony: 721--729
• Opis fizyczny: Bibliogr. 10 poz., tab., wykr.

Twórcy

autor

Marszal J.

• Department of Marine Electronic Systems, Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland

autor

Rudnicki M.

• Department of Marine Electronic Systems, Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland

autor

Jedel A.

• Department of Marine Electronic Systems, Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland

autor

Salamon R.

• Department of Marine Electronic Systems, Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland

autor

Kochańska I.

• Department of Marine Electronic Systems, Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland

Bibliografia

• 1. Elminowicz A., Zajączkowski L. (2007), Mutual interferences reduction between sonars or barrier modules operating in the same area, Hydroacoustics, 10, 39–44.
• 2. Jedel A., Salamon R., Marszal J., Kaczmarek J., Ostrowski Z. (2001), Mutual interference reduction in pulse sonars with frequency modulation [in Polish], Prace Naukowe Instytutu Telekomunikacji i Akustyki Politechniki Wrocławskiej – Konferencje – XLVIII OSA, 83, 27, 281–284.
• 3. Marszal J., Salamon R. (2012), Distance Measurement Errors in Silent FM-CW Sonar with Matched Filtering, Metrology and Measurement Systems, XIX, 2, 321–332.
• 4. Marszal J. (2014), Experimental Investigation of Silent Sonar, Archives of Acoustics, 39, 1, 103–115.
• 5. Marszal J., Salamon R. (2014), Detection Range of Intercept Sonar for CWFM Signals, Archives of Acoustics, 39, 2, 215–230.
• 6. Meller M. (2014), Fast clutter cancellation for noise radars via waveform design, Aerospace and Electronic Systems, IEEE Transactions On Aerospace and Electronic Systems, 50, 3, 2327–2333.
• 7. Pjachev V. (2008), Sonar signal waveform impact on interference resistance, 16th IEEE European Signal Processing Conference Lausanne 2008, 1–5.
• 8. Ricks R. (1994), Waveforms for reducing direct blast effects and mutual interference, Technical Report 1676, Naval Command Control and Ocean Surveillance Center San Diego.
• 9. Salamon R. (2006), Sonar systems [in Polish], Gdańskie Towarzystwo Naukowe, Gdańsk.
• 10. Yang J., Sarkar T. K. (2006), Doppler-invariant property of hyperbolic frequency modulated waveforms Microwave and Optical Technology Letters, 48, 6, 1174–1179.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.