Can we know the identity of the body using ultrasound sensor..?

Using Arduino Project Guidance
1

hi every one
and thanks for help
Can we know the identity of the body using ultrasound sensors...?

And not only the distance of the body
or is there any way to know ID of any physical body ....?
Thanks for help

2

If by "body" you mean "person", then no, you cannot identify a person by their ultrasound echo.
People aren't even very good ultrasound reflectors.

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