How usable/accurate is this approach for getting velocity out of IMU? Is there a way to make it compatible with Arduino projects or make it usable for

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how usable/accurate is this approach for getting velocity out of IMU? Is there a way to make it compatible with Arduino projects or make it usable for Arduino projects? I can't upload a word file here, so i screenshot them if they are readable.

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What kind of projects are you considering?

This approach may work well enough for estimating speed of a golf ball, but I do not think it would work well enough for estimating speed of a vehicle, for example.

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I think the golf ball introduces quite a challenge if spin comes in...
In general you will be integrating. Small errors will build up over time...

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Hi Paul, I am curious how well this is in terms of getting velocity out of natural IMU output.

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Hi build_1971, Is there a better way to get the velocity out of IMU?

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No.

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You seem to be repeating the same question. So my answer is also the same. Maybe good enough to estimate speed of a golf ball. Not good enough to estimate speed of a vehicle.

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This question comes up every week or two on the forum, and no one has every reported success. The sensors are simply too noisy for numerical integration to be useful.

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Is this device measuring the Doppler shift of the bluetooth signal?

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I dont know for sure but I dont think it does. Were you thinking about using Doppler shift for getting the velocity? or Doppler shift may introduce deviations?

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Yes.

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Oh wow I never thought of a way like this! Sounds cool! Thank you xfpd! Good to know!