How is accelerometer and gyroscope noise calculated from datasheet of MPU9250 in the below example?
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Rakhi Agarwal on 6 Sep 2019
Commented: Daniel Schwartz on 2 Dec 2020
So I found this very useful link to implement MPU9250 with arduino:
However, I have doubts regarding how the accelerometer and gyroscope noise calculated from the datasheet (as mentioned in the link).
If anyone knows how these values are calculated, kindly explain.
Pujitha Narra on 9 Sep 2019
The accelerometer and gyroscope values given in the datasheet for MPU-9250 are rms values. The GyroscopeNoiseMPU9250 and AccelerometerNoiseMPU9250 are calculated as follows:
RMS Noise of Gyroscope= 0.1⁰/s-rms
Deviation of Noise= =3.0462e-06 rad/s= GyroscopeNoiseMPU9250
RMS noise of Accelerometer = 8 mg-rms
= 0.0784 meter/-rms
Deviation of Noise = = 0.0061 meter/= AccelerometerNoiseMPU9250
Daniel Schwartz on 2 Dec 2020
Wouldn't squaring the RMS noise give you the variance rather than the deviation?
More Answers (1)
fatima zohra soussi on 12 Aug 2020
Edited: fatima zohra soussi on 12 Aug 2020
can you give me this model please because i also want to simulate gyroscope/Accelerometer in simulink , the link is not work thank you
Diarmaid Cualain on 16 Sep 2020
I assume that they are referencing here: https://uk.mathworks.com/help/supportpkg/arduinoio/ug/estimating-orientation-using-inertial-sensor-fusion-and-mpu9250.html
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