Thomson Marconi Sonar, the Anglo-French joint venture, will unveil a small, British-built sonar at the Euronaval exhibition in Paris next week.
Called Sea Scout, it can find obstacles and mines in shallow waters.
The sonar array is a metre long and Sea Scout can be fitted to craft as small as 9m long. ‘It’s a very high frequency mirror sonar,’ the company said, without releasing further details.
‘It’s a product that hasn’t seen the light of day before, it’s been on the design boards for quite a while,’ said a spokesman.