抄録
We developed for underwater 3D imaging a scanning laser sensor that has a dome lens and coaxial optics
to realize a wide-scanning-angle. Our sensor also has a feature in the sensitivity time control (STC)
circuit that detects small signals by suppressing the unwanted signals backscattered by marine snows.
We demonstrated the system performance in a pool and confirmed a 3D imaging a maximum distance of
20 m. We mounted our system on an autonomous underwater vehicle (AUV) and demonstrated seafloor
mapping at the depth of 100 m in the ocean.
