An SOS-based observer design for polynomial fuzzy systems. - Kazuo Tanaka; Hiroshi Ohtake; Toshiaki Seo; Hua O. Wang (ACC, 2011)

A polynomial observer design for a wider class of polynomial fuzzy systems. - Toshiaki Seo; Hiroshi Ohtake; Kazuo Tanaka; Ying-Jen Chen; Hua O. Wang (FUZZ-IEEE, 2011)

Polynomial Fuzzy Observer Designs: A Sum-of-Squares Approach. - Kazuo Tanaka; Hiroshi Ohtake; Toshiaki Seo; Motoyasu Tanaka; Hua O. Wang (IEEE Trans. Syst. Man Cybern. Part B, 2012)