Flexible Adaptation Leakage

Flexible Adaptation Equation is an improved filter update equation in the RNC update path. Compared to the previous filter update equation, the improvements include individualized step sizes for each accelerometer, better accelerometer power averaging equation and a new leakage feature called Flexible Adaptation Leakage (FAL).

Flexible Adaptation Leakage is an optional feature under FAE (Flexible Adaptation Equation) . It is a new leakage calculation method when enabled and will scale leakage according to the normalized step sizes.

Number of graphs for each row corresponds with the design time parameter called “Number of Accelerometers”, normally configured to be 12.

Flexible Adaptation Leakage Tab

Leakage Gamma 3 values

Flexible adaptation leakage tab shows 128 Gamma 3 values.

Enable Flexible Adaptation Leakage

Flexible adaptation leakage tab provided option to disable/ enable flexible adaptation leakage.

Refresh option

Flexible adaptation leakage tab provided option to refresh graphs.

Refresh option will read normalized step acc X data for the first row and all two rows of graphs will be refreshed and updated.

Normalized step size acc X Graph

GTT will show normalized step size acc X graph mapped with normalized step size values.

Leakage acc X Graph

Leakage Acc X are calculated by GTT when refresh is clicked.

The formula is Leakage Acc X = 1 – (vector dot product between Gamma3 and Normalized Step Size Acc X).