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If we are given a system defined by a difference equation, it is possible to find the frequency response (actually it is quite simple to find the frequency response). | If we are given a system defined by a difference equation, it is possible to find the frequency response (actually it is quite simple to find the frequency response). | ||
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Revision as of 10:17, 23 October 2008
Difference Equations
DT systems described by linear constant-coefficient difference equations are very important to the practice of signals and systems. They are of special importance when implementing filters. These equations are of the form:
Finding the Frequency Response from a Difference Equation
If we are given a system defined by a difference equation, it is possible to find the frequency response (actually it is quite simple to find the frequency response).
