Chaos Synchronization Based on Unknown Input Proportional Multiple-Integral Fuzzy Observer

Figure 9

(a) The state 𝑥₁(𝑡) and its estimated 𝑥₁(𝑡). (b) The state 𝑥₂(𝑡) and its estimated 𝑥₂(𝑡). (c) The state 𝑥₃(𝑡) and its estimated 𝑥₃(𝑡). (d) The state 𝑥₄(𝑡) and its estimated 𝑥₄(𝑡).

(a)

(b)

(c)

(d)