Hi. I'm looking MPU9250 or similar IMU's Accelerometer modeling in Simulink. How can I do that?
MATLAB: MPU9250 IMU Accelerometer modeling in Simulink
modelsimulink
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Hi Rakhi,
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
=0.00174533 rad/s-rms
Deviation of Noise= 
=3.0462e-06 rad/s= GyroscopeNoiseMPU9250
=3.0462e-06 rad/s= GyroscopeNoiseMPU9250Similarly,
RMS noise of Accelerometer = 8 mg-rms
=8e-3*9.8 meter/
-rms
-rms = 0.0784 meter/
-rms
-rmsDeviation of Noise = 
= 0.0061 meter/
= AccelerometerNoiseMPU9250
= 0.0061 meter/= AccelerometerNoiseMPU9250Hi
accelReadings(1) should give you the x values. If you have a license for Sensor Fusion and Tracking toolbox or Navigation toolbox, try using read() for more capabilities. For usage and examples, please refer link for read() .
If you have the above-mentioned licenses, you can use imufilter to determine orientation.'imufilter' uses only accelerometer and gyroscope values. Refer to the example here.
Hope this helps
Thanks
Gayatri
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