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The sea surveillance sonar

Kremer K., Peery Y.

Hydroacoustics

1999

Vol. 2

127--132

The main objective of a sea surveillance sonar is the surveillance of marine activities below the waterline in selected areas lite coasts, waterways, naval bases and oil platforms. The sea surveillance sonar can prove to be extremely beneficial in countering illegal activities that can strain a nation's economy. These activities include sabofage, piratism, terrorism, smuggling and illegal immigration. A combined sonar consisting of a low frequency passive system and a high frequency active system can be used to detect, track and classify all subsurface contacts lite submarines, divers and diver delivery vehicles within its assigned coverage area. In case of silent submarines a vertical transmitting array is supporting the detection of these targets in the law frequency range. The system is of a flexible open architecture so that it can easily be tailored too local needs. As operational support a sonar performance prediction system is integrated. The system has been tested. Experimental result will be shown.

Advanced underwater technology with emphasis on acoustic modeling and systems

Kremer K.

Hydroacoustics

1997

Vol. 1

221--226

The Sonar Performance Prediction System (SPPS) will be introduced. The SPPS is an integrated ocean-acoustic propagation model coupled with a sonar performance prediction model. A stationary sea surveillance sonar consisting of a horizontally nested hydrophone array and a vertical transmitting/receiving array may be used to detect, localisc and track surface and subsurface contacts within its coverage area. The performance of the sea surveillance sonar has been investigated with the SPPS. Results of that performance prediction will be presented.