Mimo System Identification Using Orthonormal Basis Functions
نویسندگان
چکیده
Abstract There has re ently been interest in the use of orthonormal bases for the purposes of SISO system identi ation. Con urrently, but separately, there has also been vigorous work on estimation of MIMO systems by omputationally heap and reliable s hemes. These latter ideas have olle tively be ome known as `4SID' methods. This paper is a ontribution overlapping these two s hools of thought by showing how general orthonormal bases may be generated to form model stru tures suitable for identi ation of MIMO systems using only simple al ulations. In ontrast to general predi tion error methods and in ommon with 4SID s hemes the estimation algorithms involved are omputationally simple. However, a distinguishing feature of the orthonormal basis approa h des ribed here is that signi ant prior knowledge about system poles may be in luded in the estimation problem.
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