kriswiner / MPU9250

Arduino sketches for MPU9250 9DoF with AHRS sensor fusion
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no use of zeta parameter (Madgwick) #227

Open neroner opened 6 years ago

neroner commented 6 years ago

First of all great work, thanks!

I would like to notice that you define the zeta parameter in the main program but there is no use of zeta parameter in your Madgwick update filter.

In a Magwick's paper entitled 'An efficient orientation filter for inertial and inertial/magnetic sensor arrays,' there is the version with the zeta parameter. You use another version which is available from x-io.co (again from Madgwick).

I have implemented both of versions and I take different results. Can you inform me why you used this version and what is the difference?

Thank you in advance!

kriswiner commented 6 years ago

Didn;t notice any effect of using zeta. The filter is computationally efficient and produces good results as it is implemented here.

On Sun, Jan 14, 2018 at 11:30 AM, neroner notifications@github.com wrote:

First of all great work, thanks!

I would like to notice that you define the zeta parameter in the main program but there is no use of zeta parameter in your Madgwick update filter.

In a Magwick's paper entitled 'An efficient orientation filter for inertial and inertial/magnetic sensor arrays,' there is the version with the zeta parameter. You use another version which is available from x-io.co (again from Madgwick).

I have implemented both of versions and I take different results. Can you inform me why you used this version and what is the difference?

Thank you in advanced!

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neroner commented 6 years ago

True. I take very good results. I just informed you that there is no use of zeta parameter...

Thank you for your prompt reply

kriswiner commented 6 years ago

Thanks for the info...

On Sun, Jan 14, 2018 at 11:40 AM, neroner notifications@github.com wrote:

True. I take very good results. I just informed you that there is no use of zeta parameter...

Thank you for your prompt reply

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