Figure 7

Illustration of a mixed fGn model with \(H_{1}=0.60\), \(\theta =\pi /12\), \(H_{2}=0.40\), and \(\theta _{2}=5\pi /12\). (a,b) The original components \(\bigl \{\epsilon _{1}[i]\bigl \}\) and \(\bigl \{\epsilon _{2}[i]\bigl \}\). (c,d) The orientations of \(\bigl \{\epsilon _{1}[i]\bigl \}\) and \(\bigl \{\epsilon _{2}[i]\bigl \}\) in the \(\bigl (x^{(1)},x^{(2)}\bigl )\) plane. (e–g) Mixed fluctuations of \(\bigl \{\epsilon _{1}[i]\bigl \}\) and \(\bigl \{\epsilon _{2}[i]\bigl \}\) using Eq. (6) in the \(\bigl (x^{(1)},x^{(2)}\bigl )\) plane.