[1] Osaka Univ, Fac Engn, Dept Elect Engn, Suita, Osaka 565, Japan
[2] Inst Automat & Control Proc, Vladivostok 690041, Russia
[3] Far Eastern State Univ, Fac Phys & Engn, Vladivostok 690000, Russia
[4] Vladivostok State Univ Econ & Serv, Fac Elect, Vladivostok 690600, Russia