Continuous wave sonar with hyperbolic frequency modulation keyed by pseudo-random sequence

• Autorzy: Jedel A. , Marszal J. , Salamon R.
• Języki publikacji: EN

Abstrakty

EN

A CW FM type sounding signal is used in the classical solution of silent sonar. While the signal provides a relatively simple implementation of digital signal processing, and ensures good detection conditions, unfortunately, in the presence of the Doppler effect, distance measurement results tend to be wrong. This is due to the fact that the received signal’s instantaneous frequency value is dependent both on the distance to the object, and its speed. Sounding signal, as patented by the authors, is a combination of Pseudo-Random Sequences (PRS), and elementary signals of Hyperbolic Frequency Modulation (HFM) type. The structure of this signal is aimed at minimizing measurement error. The article presents the idea of a sounding signal of HFM+PRS type, and the results of computer simulations.

Słowa kluczowe

EN

CW FM; pseudorandom sequence; Doppler effect; matched filtering

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2016
• Tom: Vol. 19
• Strony: 185--196
• Opis fizyczny: Bibliogr. 17 poz., rys.

Twórcy

autor

Jedel A.

• Gdansk University of Technology Faculty of Electronics, Telecommunications and Informatics G. Narutowicza 11/12, 80-233 Gdansk, Poland

autor

Marszal J.

• Gdansk University of Technology Faculty of Electronics, Telecommunications and Informatics G. Narutowicza 11/12, 80-233 Gdansk, Poland

autor

Salamon R.

• Gdansk University of Technology Faculty of Electronics, Telecommunications and Informatics G. Narutowicza 11/12, 80-233 Gdansk, Poland

Bibliografia

• [1] S. A. Kramer, Doppler and acceleration tolerance of high-gain wide-band linear FM correlation sonar, Proc. IEEE, 33, 627-636, 1967.
• [2] H. DeFerrari, J. Wylie, Ideal signals and processing for continuous active sonar, Acoustical Society of America, Proceedings of Meetings on Acoustics (ICA 2013 Montreal Canada), Vol. 19, 055058, 2013.
• [3] S.J. Lourey, Frequency Hopping Waveforms for Continuous Active Sonar, Proceedings of 2015 IEEE International Conference on Acoustics, Speech, and Signal Processing, 1832 – 1835, Brisbane 2015.
• [4] J. Marszal, R. Salamon, Detection Range of Intercept Sonar for CWFM Signals, Archives of Acoustics, Vol. 39, No 2. s. 215-230, 2014.
• [5] J. Marszal, Experimental Investigation of Silent Sonar, Archives of Acoustics, Vol. 39, No 1, 103-115, 2014.
• [6] J. Marszal, R. Salamon, Distance Measurement Errors in Silent FM-CW Sonar with Matched Filtering, Metrology and Measurement Systems, Vol. XIX, No. 2, 321-332, 2012.
• [7] J. Marszal, R. Salamon, A. Jedel, Silent Sonar – State of the Art and Perspectives [in Polish], in Progress of Acoustics, editor K.J. Opieliński, Polish Acoustical Society, Wroclaw Division, 31-48, 2015.
• [8] R. Salamon, J. Marszal, Estimating Intercept Range of Silent Sonar, in Hydroacoustics of Shallow Water edited by E. Kozaczka, G. Grelowska, Polish Academy of Sciences Institute of Fundamental Technological Research, 139-158, 2013.
• [9] J. Marszal, R. Salamon, Silent Sonar for Maritime Security Applications, Acoustical Society of America, Proceedings of Meetings on Acoustics (ECUA 2012 Edinburgh UK), Vol. 17, 070082, 2013.
• [10] J. Marszal, R. Salamon, L. Kilian, Application of Maximum Length Sequence in Silent Sonar, Hydroacoustics, Vol. 15, 143-152, 2012.
• [11] J. Marszal, R. Salamon, K. Zachariasz, A. Schmidt, Doppler Effect in the CW FM Sonar, Hydroacoustics, Vol. 14, 157-164, 2011.
• [12] J. Marszal, R. Salamon, A. Jedel, Sounding Signal, Emitted Especially by a Silent Sonar, and Demodulation Method for a Sounding Signal, Emitted Especially by a Silent Sonar [in Polish], Patent Pending No. P.407692, 2014.
• [13] R. Salamon, J. Marszal, J. Schmidt, M. Rudnicki, Silent Sonar with Matched Filtration, Hydroacoustics, Vol. 14, 199-208, 2011.
• [14] R. Salamon, J. Marszal, L. Kilian, A. Jedel, A. Raganowicz, Z. Ostrowski, Choice of the signals in silent sonar with matched filtration [in Polish], Open Seminar on Acoustics OSA’11, Vol. II, 257-266, 2011.
• [15] R. vanVossen, S.P. Beerens, E. van der Spek, Anti-Submarine Warfare with Continuously Active Sonar, Sea Technology, Vol. 52, 11, 33-35, 2011.
• [16] K. Wang, S. Chen, C. Liu , Y. Liu, Y. Xu, Doppler Estimation and Timing Synchronization of Underwater Acoustic Communication Based on Hyperbolic Frequency Modulation Signal, Proc. 2015 IEEE 12th International Conference on Networking, Sensing and Control, Howard Civil Service International House, Taipei, Taiwan, 75-80, 2015.
• [17] L. Zurk, D. Rouseff , S. Schecklman, Exploitation of frequency information in Continuous Active Sonar, Proc. 22nd International Congress on Acoustics, Underwater Acoustics: ICA2016-446, Buenos Aires, 2016.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)