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A comment on Almost 25% of world’s seafloor now mapped. Parent comment

Re:Almost 25% of world’s seafloor now mapped by lazide on Wednesday October 19, 2022 @12:07PM (#33264202)
It is not possible to have bi-directional communication using sonar without giving away a subs location.

If doing the equivalent of dropping a speaker into the ocean and giving a speech, yes it is possible of course.

This might be an interesting paper - https://www.researchgate.net/publication/340683649_Cellular_...

Covering specific physics reasons, alternatives, etc.

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Re:Almost 25% of world’s seafloor now mapped by throwaway09223 on Wednesday October 19, 2022 @01:33PM (#33265351)
> It is not possible to have bi-directional communication using sonar

Yes of course. No one has suggested otherwise. That's the entire point of using a drone, after all.

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Re:Almost 25% of world’s seafloor now mapped by lazide on Wednesday October 19, 2022 @06:39PM (#33268757)
For the drone to be useful operationally to the submarine, the submarine would need some degree of control over it?

They couldn’t control something that they can’t talk to without giving away their position?

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Re:Almost 25% of world’s seafloor now mapped by throwaway09223 on Wednesday October 19, 2022 @07:06PM (#33268942)
> For the drone to be useful operationally to the submarine, the submarine would need some degree of control over it?

No, it would not. We already discussed this above, vis a vis preprogrammed paths.

I don't really want to rehash things we've already discussed. Have a good one.

[ Parent | on HN ]