Output feedback Takagi Sugeno controller for a continuous fish population system

The aim of this paper is to study the problem of control for a fishery fuzzy system model by using an output feedback controller, in order to regulate the stock states around a non-trivial equilibrium. In our case, the continuous fishery model is considered, where the effort is used as a control term, the age classes as a states and the quantity of captured fish per unit of effort as a measured output. The continuous non-linear model is first represented by a Takagi Sugeno model. Next, we develop a technique for designing an output feedback control law which globally stabilises this fuzzy system model. A design method for constructing the output controller is given. A numerical simulation example is given to show the potential of the proposed techniques.