On the design and construction of drifting-mine test targets for sonar, radar and electro-optical detection experiments
conference paper
The timely detection of small hazardous objects at the sea surface, such as drifting mines, is challenging for ship-mounted sensor systems, both for underwater sensor systems like sonar and above-water sensor systems like radar and electro-optics (lidar, infrared/visual cameras). This is due to the low target echo strength and radar/lidar cross-section of partly submerged objects at small grazing angles, which are also intermittently shielded by waves and their response is being hidden in significant surface reverberation. In 2009-2010, the feasibility of ship-based detection by state-of-theart sensor technology was successfully assessed using specially designed drifting-mine test targets. In this paper, we look at the test target requirements for different observation technologies, and focus on the design and construction of the target objects. For illustration of the suitability of the test targets and available sensor technology, some sea-trial results are included for visual and IR detection above water, and for sonar detection under water.
Topics
TNO Identifier
508422
Source title
Proceedings 2nd International Conference and Exhibition on Underwater Acoustics, UA2014, 22-27 June, Rhodes, Greece
Editor(s)
Papadakis, J.S.
Bjorno, L.
Bjorno, L.
Pages
465-472
Files
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