Design of an IIR by Impulse Invariance and Bilinear Transformation
نویسنده
چکیده
A fundamental aspect of signal processing is filtering. Filtering involves the manipulation of the spectrum of a signal by passing or blocking certain portions of the spectrum, depending on the frequency of those portions. Discrete time IIR filter design can be a very complex procedure in discrete time domain. Therefore, transformations have been developed to use well known design methods in continuous time domain. The filter specifications are made in discrete time domain, shifted into continuous time domain where the filter is designed in the old fashioned way. That continuous time filter is then transformed back into discrete time domain.The result is a discrete time filter which matches the given specifications in a certain way. In this paper impulse invariant design is compared with bilinear transformation.
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