Digital Signal Processing Applied to the Modernization Of Polish Navy Sonars

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The article presents the equipment and digital signal processing methods used for modernizing the Polish Navy’s sonars. With the rapid advancement of electronic technologies and digital signal processing methods, electronic systems, including sonars, become obsolete very quickly. In the late 1990s a team of researchers of the Department of Marine Electronics Systems, Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology, began work on modernizing existing sonar systems for the Polish Navy. As part of the effort, a methodology of sonar modernization was implemented involving a complete replacement of existing electronic components with newly designed ones by using bespoke systems and methods of digital signal processing. Large and expensive systems of ultrasound transducers and their dipping and stabilisation systems underwent necessary repairs but were otherwise left unchanged. As a result, between 2001 and 2014 the Gdansk University of Technology helped to modernize 30 sonars of different types.

1. Brown J. L. Jr: On the error in reconstructing a non-bandlimited function by means of the bandpass sampling theorem. Journal Math. Anal. Applied, Vol. 18. 1967, pp. 75-84, Erratum - Vol. 21.1968, p. 699

2. Brown J. L. Jr: On quadrature sampling of bandpass signals. IEEE Transactions on Aerospace and Electronic Systems, vol. 15, No. 3, 1979, pp. 366-371

3. Cordesses L.: Direct digital synthesis: a tool for periodic wave generation (Part 1). IEE Signal Processing Magazine, July 2004, pp. 50-54

4. Cordesses L.: Direct digital synthesis: a tool for periodic wave generation (Part 2). IEE Signal Processing Magazine, September 2004, pp. 11-112

5. Curtis T. E.: Ward R. J., Digital beamforming for sonar systems. IEE Proceedings Part F, Communications, Radar and Signal Processing, Vol. 127, No. 4, 1980

6. Curtis T.: Sonar technology - past and current. Curtis Technology (UK) Ltd, 2004.,

7. Friedman N.: The naval institute guide to world naval weapon systems. Naval Institute Press, 2006

8. Grace O. D., Pitt S. D.: Quadrature sampling of high frequency waveforms. Journal of Acoustical Society of America, Vol. 44, pp. 1432-1436, 1968

9. Grelowska G., Kozaczka E., Kozaczka S., Szymczak W., Underwater Noise Generated by a Small Ship in the Shallow Sea, Archives of Acoustics, Vol. 38, No 3, 2013, pp. 351-356

10. Hodges R. P.: Underwater Acoustics: Analysis, Design, and Performance of Sonar. Wiley, 2010

11. Jedel A., Kilan L., Marszal J., Ostrowski Z., Salamon R.: Dynamic control of the receiving beam horizontal cross-section in the side scan sonar. Hydroacoustics, Vol. 8, 2005, pp. 69-76

12. Kester W.: Data conversion handbook (Analog Devices). Elsevier/Newnes, 2005

13. Kilian L., Marszal J.: Analyse der Richtwirkung einer linearen Matrix von Hydrofonen fur determinierte Breitbandsignale, Fortschritte der Akustik DAGA’93, Teil A, Frankfurt am Main 1993, pp. 430-433

14. Kilian L., Raganowicz A., Sidorko T.: Visualization forms in MCM side scan sonar. Hydroacoustics, Vol. 13, 2010, pp. 119-126

15. Knight W. C., Pridham R. G., Kay S. M.: Digital signal processing for sonar. Proceedings of the IEEE, Vol. 69, No. 11, 1981

16. Kolev N.: Sonar systems. InTech, 2011

17. Kozaczka E.,Grelowska G.: Shipping noise. Archives of Acoustics, Vol. 29, No 2, 2004, pp. 169-176

18. Kozaczka E., Domagalski J., Grelowska G., Gloza I.: Identification of hydro-acoustic waves emitted from floating units during mooring tests, Polish Maritime Research, Vol. 14, No 4(54), 2007, pp. 40-46

19. Kozaczka E., Grelowska G.: Shipping low frequency noise and its propagation in shallow water, Acta Physica Polonica A, Vol. 119, No 6A, 2011, pp. 1009-1012

20. Leśniak W., Marszal J., Salamon R., Rudnicki M., Schmidt A.: Digital mono-pulse method in cylindrical antenna. Archives of Acoustics, Vol. 31, No. 4 (sup.), 2006, pp. 357-363

21. Leśniak W., Marszal J., Salamon R., Zachariasz K., Schmidt J.: Method for improving multibeam sonar bearing accuracy. Hydroacoustics, Vol. 12, 2009, pp. 99-108

22. Leśniak W., Rudnicki M.: Improving the accuracy of bearing in active sonar with cylindrical array using spectrum estimation. Hydroacoustics, Vol. 16, 2013, pp. 159-166.

23. Lyons R. G.: Understanding digital signal processing. 2-nd Edition. Prentice Hall, 2004

24. Maloberti F.: Data converters. Springer, 2008

25. Marszal J.: Directivity pattern of active sonars with wideband signals. Acoustical Imaging, Vol. 19, Springer, 1992, pp. 915-919

26. Marszal J., Zachariasz K.: Richtwirkung des aktiven Sonars fur Sendesignale mit schafer Autokorrelationsfunktion. Fortschritte der Akustik DAGA 93, Teil A, Frankfurt am Main 1993, pp. 434-437

27. Marszal J., Jedel A., Ostrowski Z.: Small antenna for a dipping sonar. Hydroacoustics, Vol. 4, 2001, pp. 169-172

28. Marszal J., Salamon R., Stepnowski A.: Military sonar upgrading methods developed at Gdansk University of Technology. Proc. IEEE Oceans’05 Europe Conference, Brest 2005. [Electronic document CD-ROM], pp. 489-494

29. Marszal J., Leśniak W., Salamon R., Jedel A., Zachariasz K.: Passive sonar with cylindrical array. Archives of Acoustics, Vol. 31, No. 4 (Sup.), 2006, pp. 365 - 371

30. Marszal J., Leśniak W., Salamon R., Schmidt J.: Electronic stabilization of beams in sonar with cylindrical array. Hydroacoustics, Vol. 9, 2006, pp. 119-124

31. Marszal J., Ostrowski Z., Schmidt J., Kilian L., Jedel A., Schmidt A.: Time variable gain for long range sonar with chirp sounding signal. Hydroacoustics, Vol. 10, 2007, pp. 117-122

32. Marszal J., Schmidt J., Salamon R., Kilian L., Raganowicz A., Zachariasz K., Ostrowski Z., Jedel A., Rudnicki M., Sidorko T., Schmidt A., Leśniak W.: Modernization of ASW sonar SQS-56 at Gdansk University of Technology. Hydroacoustics, Vol. 13, 2010, pp. 191-196

33. Marszal J., Salamon R., Zachariasz K., Schmidt A.: Doppler Effect in the CWFM sonar. Hydroacoustics Vol. 14, 2011, pp. 157-164

34. Marszal J., Salamon R., Kilian L.: Application of maximum length sequences in silent sonar. Hydroacoustics, Vol. 15, 2012, pp. 143-152

35. Marszal J., Salamon R.: Distance measurement errors in Silent FM-CW sonar with matched filtering. Metrology and Measurement Systems, Vol. XIX, No. 2, 2012, pp. 321-332

36. Marszal J., Salamon R.: Silent sonar for maritime security applications. Proceedings of Meetings on Acoustics, Acoustical Society of America, Vol. 17, 070082, 2013

37. Marszal J.: Implementation of Contemporary Technologies in the Modernization of Naval Sonars. Hydroacoustics, Vol. 16, 2013, pp. 167-180

38. Marszal J., Salamon R.: Detection Range of Intercept Sonar for CWFM Signals, Archives of Acoustics, Vol. 39, 2014, No 2

39. Marszal J.: Experimental Investigation of Silent Sonar, Archives of Acoustics, Vol. 39, 2014, No 1, pp. 103-115

40. McHale J.: Radar signal processing upgrades use embedded COTS hardware. Military Embedded Systems, Vol. 8 No. 1, 2012, pp. 30-35

41. Nielsen R. O.: Sonar signal processing. Artech House, 1991

42. Raganowicz A., Salamon R., Rudnicki M., Kilian L.: Visual representation of the effects of spatial and frequency filters applied in passive sonars. Hydroacoustics, Vol. 4, 2001, pp. 281-284

43. Raganowicz A., Kilian L., Ostrowski Z.: Special forms of echo visual representation in an ahead looking sonar. Hydroacoustics. Vol. 5/6, 2003, pp. 47-52

44. Raganowicz A., Kilian L., Marszal J., Ostrowski Z., Schmidt A.: Visualisation forms in passive sonar with towed array. Archives of Acoustics, Vol. 31, No. 4 (Sup.), 2006, pp. 373 - 378

45. Rudnicki M., Raganowicz A., Schmidt J.: Acoustic signal processing in passive sonar system with towed array. Hydroacoustics, Vol. 11, 2008, pp. 329-338

46. Rudnicki M., Schmidt J., Schmidt A., Leśniak W.: Acoustic processor of the mine countermeasure sonar. Hydroacoustics, Vol. 15, 2012, pp. 179-186

47. Rudnik P.: Small signal detection in the DIMUS array. Journal of Acoustical Society of America, Vol. 32, No. 7, pp. 871-877, 1960

48. Salamon R., Marszal J., Kilian L., Jedel A.: New signal processing in a passive sonar with gradient antenna. Hydroacoustics, Vol. 3, 2000, pp. 129-134

49. Salamon R., Marszal J., Raganowicz A., Rudnicki M.: Application of Fourier transformation in a passive sonar with gradient hydrophones. Proc. of the Fifth European Conference on Underwater Acoustics. Proceedings of fifth European Conference on Underwater Acoustics, ECUA 2000, Lyon, pp. 1115-1120

50. Salamon R., Marszal J., Rudnicki M.: Underwater acoustic system with small antenna for the detection and bearing of sound sources. Proceedings of 17th International Congress on Acoustics, Rome 2001, Vol. II [Electronic document] pp. 1-2

51. Salamon R., Marszal J.: Optimising the sounding pulse of the rotational directional transmission sonar. Acta Acustica united with Acustica, Vol. 88, 2002, pp. 666-669

52. Salamon R., Rudnicki M., Schmidt J.: General analysis of broadband signal spatial filtration. Hydroacoustics, Vol. 5/6, 2003, pp. 251-260

53. Salamon R., Marszal J., Leśniak W.: Broadband sonar with a cylindrical antenna. Acta Acustica united with Acustica, Vol. 92, 2006, pp. 153-155

54. Salamon, R.: Sonar systems. [in Polish], Gdanskie Towarzystwo Naukowe, Gdansk 2006

55. Salamon R., Marszal J., Schmidt J., Rudnicki M.: Silent sonar with matched filtration. Hydroacoustics, Vol. 14, 2011, pp. 199-208

56. Salamon R., Marszal J.: 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, Warszawa, 2013, pp. 139-158

57. Schmidt J., Schmidt A.: Implementation of the digital receiver in multibeam long-range sonar, Hydroacoustics, Vol. 16, 2013, pp. 203-210

58. Schwenke R. W.: Sensitivity analysis of an estimator-correlator for the detection of spread targets with multiple discrete highlights. Technical Report No. TR 00-006, The Pennsylvania State University Applied Research Lab., 2000

59. Sherman S. M.: Monopulse Principles and Techniques, Artech, 1984

60. Skolnik, M.: Radar Handbook, Third Edition. McGraw-Hill, 2008

61. Smith S. W.: Digital Signal Processing: a practical guide for engineers and scientists. Newnes, 2002

62. Valakama M., Renfors M.: Second-order sampling of wideband signals. Proc. of IEEE International Symposium on Circuits and Systems, ISCAS 2001, Vol. 2, pp. 801 - 804

63. Waite A. D.: Sonar for practicing engineers.Third Edition. Wiley (2002)

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