Observer Design for a Core Circadian Rhythm Network

Figure 5

(a) State trajectories of systems (3) and (17) with step input signal 𝑢(𝑡) in (19). (b) The error dynamics between systems (3) and (17). Here 𝑦(𝑡)=(𝑐₁𝑥₁(𝑡),𝑐₂𝑥₂(𝑡))^𝑇,𝛼=2,𝛽=3,𝑐₁=2.2,and𝑐₂=1.

(a)

(b)