General design theory for nonlinear reduced order observers (NRO) for forced nonlinear multivariable plants was proposed, with the Luenberger linear reduced order observers as just a special form of the general model.

• 提出非线性多变量受控对象的非线性降维观测器(NRO)的一般设计理论 ,从而使 L uenberger线性降维观测器成为其特殊形式。