Robust and Nonfragile 𝐻_∞ Kalman-Type Filter Design for Parameter-Uncertain Time-Delay Systems: PLMI Approach

Figure 2

Simulation results of states for the nominal system and filter.

(a) System state 𝑥₁(𝑡) and filter state 𝑥_𝑓1(𝑡)

(b) System state 𝑥₂(𝑡) and filter state 𝑥_𝑓2(𝑡)