On the impulse response of a discrete-time linear IIR system
نویسندگان
چکیده
An explicit formula for the impulse response of a discrete-time causal linear time-varying infiniteimpulse-response (IIR) system in terms of the system parameters is obtained from the solution of a linear difference equation with variable coefficients. The case of a linear time-invariant system is also discussed. The results are used to approximate an IIR system by a finite-impulse-response system, and a relative truncation error criterion is presented to measure the accuracy of such an approximation.
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عنوان ژورنال:
- Digital Signal Processing
دوره 13 شماره
صفحات -
تاریخ انتشار 2003