APPROXA: the new user interface for the sonar performance model Almost
conference paper
Accurate knowledge on sonar performance is critical for design and deployment of any type of sonar. The assessment of sonar performance, however, is a complex task since it depends on system parameters and settings, target properties and tactics and on the environmental conditions. TNO has accumulated more than 30 years of sonar performance modelling experience in the ALMOST performance model. The model, based on eigenrays, allows the computation of sonar performance for active, passive and intercept sonars. In this paper, the new user interface developed around the ALMOST computation kernel is presented. It is referred to as APPROXA. This interface is designed for both regular and expert users. For regular users, appropriate default settings are selected. Expert users have the possibility to modify parameters according to their knowledge. APPROXA allows a one-click selection of environmental input data, measured or historical, on a geographical display. The environmental data can be extracted from historical databases and/or gridded data stored as Additional Military Layers (AML). The computations are performed in an N*2D fashion and performance results are presented in comprehensive tactical picture. APPROXA is therefore an accurate and easy to use tool for sonar systems design and deployment.
TNO Identifier
471864
Source title
Proceedings of the Conference on Undersea Defence Technology, UDT 2012, 29-31 May 2012, Alicante, Spain
Files
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