lidar vision for submarines

a submarine could use sonar for long distance 

and lidar for short distance 

so that the submarine uses sonar to detect ships and other submarines 

at long distance 

while the submarine uses lidar to navigate close to the seabottom 

or to navigate near the ice above 

powerful computers and advanced software 

could probably turn some sonar information 

into 3d images and realtime 3d video 

which would give the submarine crew a virtual window 

to observe the underwater environment 

of seabottom below and ice above 

and powerful computers and advanced software 

could most likely turn lidar information 

into high resolution 3d images 

and high resolution realtime 3d video 

which would give the submarine crew a sharp view in a virtual window 

to observe the underwater environment 

of seabottom below and ice above