By Sabrina Matteucci
Multistatic active sonar system interoperability, data fusion, and measures of performance. NURC-FR-2006-004. April 2006.
Anti-submarine warfare operations are increasingly challenged due to the quiet nature of current threat submarines, and the complexity of shallow water acoustic environments in which they must be conducted. Active sonar systems have become an important addition to passive systems in the detection of submarines under such conditions. However, active sonar systems must be able to overcome unfavorable propagation conditions, high levels of obscuring reverberation, and increases in the amount of confusing target-like false alarm clutter. Multistatic active sonar configurations have been proposed as a way to augment ASW capability over standalone monostatic active sonar. Over the past several years, the NATO Undersea Research Centre and its collaborators have been engaged in conducting research into the multistatic active sonar system concept. Several at-sea multistatic research trials have been conducted and much knowledge has been gained into the system concept’s performance, interoperability requirements, potential for effective data fusion, and measures of performance. This has resulted in significant number of detailed technical reports and papers on various aspects of the subject. This work is summarized, with an extensive listing of references provided for the reader who requires more detailed treatment of the subject or wishes to obtain specific real world examples based on recent multistatics experiments conducted at sea.