Software for analysis of bistatic sonar systems

Profil Titel	Software for analysis of bistatic sonar systems
Referenz	10 GR 49R2 3HK4
Herkunftsland	Greece
Kooperationsart	Angebot
Eintrag/Änderung	2010-06-15 / 2010-06-15
Status	Dieses Profil ist abgelaufen! Falls Sie denoch Interesse haben, kontaktieren Sie uns. (2011-06-01)

Kurzfassung

A Greek research institute has developed software for the performance prediction and analysis of bistatic sonar systems operating under noise and reverberation-limited conditions. The prototype has been developed taking into account range-dependent hydroacoustic and geoacoustic characteristics, as well as operational characteristics, including orientation and directivity patterns. The group is looking for partners in defence industry and research for license agreement and technical cooperation.

Details

Bistatic and multistatic sonar systems are increasingly used to detect silent underwater targets, especially in coastal waters. Coastal environments are characterized by complicated bathymetry which challenges acoustic propagation modelling. Further, strong bathymetric features give rise to strong reverberation, which thus plays a key role for the performance of the detection systems.

The Greek research group created a prototype software for the analysis of bistatic underwater acoustic detection systems (sonars) operating in a particular geographical area under noise- and/or reverberation-limited conditions. The software can be used for performance prediction of bistatic sonars taking into account range-dependent environmental (hydroacoustic and geoacoustic) characteristics, as well as operational characteristics of the involved platforms, including orientation and directivity patterns. The software features electronic maps and user-friendly interface for the description of the analysed systems and supports dynamically interchangeable environmental databases offering global geographic coverage, as well as integrated problem handling and saving capabilities.

Propagation and reverberation calculations are performed using an efficient ray-theoretic code, whereas energy detection and matched-filter detection are modelled. The produced results include transmission loss, bistatic reverberation, probabilities of detection and detection areas. The computations are performed on a three-dimensional grid enabling presentation of results as 2D graphs (adjustable horizontal and vertical sections) and 3D objects on a geographical background.

The development group has long experience in the field of underwater acoustic propagation modelling using geometric and wave-theoretic methods, as well as in underwater acoustic applications and their analysis, in particular ocean acoustic tomography, detection and localization. Recent activities include design and analysis of a large-scale tomography experiment in the Arctic Ocean, as well as the development of an integrated software environment for the analysis of passive and active monostatic underwater acoustic detection systems.

Innovative Aspects:
- Prediction of bistatic detection performance in noise and reverberation environments
- 360 degrees coverage around source and receiver
- Account of directional receiver characteristics (including beam steering)
- Energy / matched-filter detection
- Interactive map with coastline / bathymetry features
- 3D presentation of results on geographical background
- PC/Windows(c) – no need for additional software