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Ranges and equipment for the measurement of the ship's underwater signatures

Gloza I., Malinowski S. J., Marchalewski B.

Hydroacoustics

2012

Vol. 15

39-48

Controlling unwanted signatures on warships is a most important effort for ship designers and naval operators. A great attempt is considerate in this field in many countries such as the USA, Germany, Sweden, Norway and in Poland as well. This paper presents ranges and techniques for the investigation of the underwater physical fields radiated by different surface ships and submarines. The Polish Naval Academy and the Naval Test and Evaluation Ranges (NTER) check and next decrease generated by the ship’s physical fields. These underwater signals can be hydroacoustic, hydrodynamic, electric, magnetic and seismic in nature. In order to have good quality measurements, there are land and sea installations, platforms on trucks, and what more a special laboratory aboard the ship. The Ranges also have a fixed and transportable multi–sensor equipment installed in a single module. This apparatus is now being used both for the measurement and for the gathering of scientific data which are next further research and analysis.

The old and new procedures for the investigation of underwater signatures

Gloza I., Malinowski S. J., Marchalewski B., Dobrzeniecki J.

Hydroacoustics

2011

Vol. 14

55-60

This paper presents the results of old and new techniques for the investigations of underwater acoustic fields radiated by different objects. In the Navy Test and Evaluation Ranges (NTER), we monitor the ship radiated underwater noise, pressure and other signatures. They are of major importance to sea mines, surface ships and submarines. The NTERs contain an accurate measurement system consisting of a bottom-mounted hydrophone array, which is used for different running vessels. We also have a special laboratory ship and a transportable multisensor module, which is the most recent Polish Naval Academy product. Nowadays, the problem of protecting the civilian and military harbor facilities is becoming more and more important. There is always a threat to the ports from submarines and terrorists who dive under the water.