Kybernetika 39 no. 4, 493-506, 2003

On the observability of fuzzy second order control systems

Jong Yeoul Park, P. Balasubramaniam and Hyun Min Kim


In this paper, the observability of fuzzy logic second order control system is studied from the aspect of fuzzy differential equations. The fuzzy observability in the weak sense is created using the concept of "likelihood" to indicate on which level and along which solution the state is most likely observable. One of the initial state range has been derived with the given input and output. The result generalizes the previous results.