Bistritz stability criterion

In signal processing and control theory, the Bistritz criterion is a simple method to determine whether a discrete linear time invariant (LTI) system is stable proposed by . Stability of a discrete LTI system requires that its characteristic polynomial (obtained from its difference equation, its dynamic matrix, or appearing as the denominator of its transfer function) is a stable polynomial, where is said to be stable if all its roots (zeros) are inside the unit circle, viz. ,

Bistritz stability criterion

In signal processing and control theory, the Bistritz criterion is a simple method to determine whether a discrete linear time invariant (LTI) system is stable proposed by . Stability of a discrete LTI system requires that its characteristic polynomial (obtained from its difference equation, its dynamic matrix, or appearing as the denominator of its transfer function) is a stable polynomial, where is said to be stable if all its roots (zeros) are inside the unit circle, viz. ,