Figure 3.

Basis functions $h_k\left(v\right)$ (38), (39) and ${\varphi }_k\left(t\right)$ (40)–(43) of the Chebyshev model for two time-scaling factors: (a) $h_k\left(v\right)$, $\alpha =0.1\left[s\right]$; (b) $h_k\left(v\right)$, $\alpha =1\left[s\right]$; (c) ${\varphi }_k\left(t\right)$, $\alpha =0.1\left[s\right]$; (d) ${\varphi }_k\left(t\right)$, $\alpha =1\left[s\right]$; $k=0,1,2,3,4$.