Research Article

Effectiveness of Variable-Gain Kalman Filter Based on Angle Error Calculated from Acceleration Signals in Lower Limb Angle Measurement with Inertial Sensors

Figure 5

Evaluation results of RMSE of measured inclination angles using rigid body model. Average values obtained from the results of 5 trials are shown for each target angle range.
398042.fig.005a
(a) Shank inclination angle
398042.fig.005b
(b) Thigh inclination angle