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 6

Evaluation results of correlation coefficient (ρ) 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.006a
(a) Shank inclination angle
398042.fig.006b
(b) Thigh inclination angle