Fig. 5
From: Identifying human postural dynamics and control from unperturbed balance
Mean estimated error of the system matrix \(e_A\)(%, left) and the control gain \(e_K\)(%, right) from 10 iterations for different noise combinations. Errors of the ordinary least squares method (OLS, top) and the new method (CR, bottom) are shown. For both cases, motor noise was fixed as \(\sigma _\eta = 0.01\). The double inverted pendulum model was simulated with the Case 2 controller parameters