Butterflight Kalman Filter Calculator

Butterflight Kalman Filter Calculator

This calculator can be used to compute cutoff frequency of Butterflight Fast Kalman filter.

Butterflight Fast Kalman filter (FKF) is active when gyro_stage2_filter_type is set to FAST_KALMAN.

Since the filter is looptime dependant, you have to provide Q and R coefficients as well as gyroscope sampling frequency. As a result you will get computed cutoff frequency. Play with Q and R values to get desired filter cutoff value.

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