Minimum order input-output equation for linear time-varying digital filters
IEEE Signal Processing Letters(1998)
摘要
The objective of this paper is to obtain minimum order input-output equations for a class of linear time-varying digital filters in state equation with constant dimension state vector. It is shown that the minimum order of the input-output equation may not be identical to the dimension of the state vector and there exists a nonunique solution for the minimum order input-output equation.
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关键词
Digital filters,Nonlinear filters,Vectors,Observability,Differential equations,Digital signal processing,Australia Council
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