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MEMs device station keeping?


(Richard) #1

@Rusty-Have you, or do you know someone who has, successfully accomplished underwater station keeping using a 3-axis MEMs accelerometer?

Richard


(Rusty) #2

Richard,

That’s a real challenge due to the noise in MEMS devices. Any sort of inertial position estimation is subject to a lot of drift. I think you could station keep for a very short time, but anything substantial requires much better inertial sensors or other positioning methods like Ultra-Short Baseline positioning (USBL) or Doppler Velocity Logging (DVL).

Best,

Rusty


(Richard) #3

That’s what I figured, thanks. Your WTE went to 70 feet this morning. No problems.


(Rusty) #4

Richard, nice!