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Apparatus and method for nonlinear process identification using orthonormal bases and ordinal splines in a process control system
Apparatus and method for nonlinear process identification using orthonormal bases and ordinal splines in a process control system
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机译:在过程控制系统中使用正交基和有序样条进行非线性过程识别的设备和方法
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摘要
A method includes receiving data associated with operation of an industrial process system. The method also includes identifying a model defining a behavior of the industrial process system using the data, an orthonormal bases function, and an ordinal spline bases function. The orthonormal bases function can be generated using estimated poles of the industrial process system. The ordinal spline bases function can be generated using a specified set of cubic splines. The ordinal spline bases function can also be generated using a distribution of knots and multiple ordinal spline functions associated with the knots. More knots can be associated with a more nonlinear portion of the industrial process system, and fewer knots can be associated with a less nonlinear portion or a linear portion of the industrial process system.
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