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New stability test algorithm for two-dimensional digital filters

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2 Author(s)
Xiao Yang ; Inst. of Inf. Sci., Northern Jiaotong Univ., Beijing, China ; Unbehauen, R.

A new stability test algorithm for two-dimensional (2-D) digital filters is proposed, which uses the inner term polynomials of the corresponding 2-D test polynomial to construct a test table in order to simplify the stability test procedure. Different from other well-known table test algorithms, the new test algorithm can directly use the one-dimensional (1-D) Schur procedure to test the zeros' distribution of a 2-D complex polynomial in the unit bidisk

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Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on  (Volume:45 ,  Issue: 7 )