Linear Constant-coefficient Difference Equation
The linear constant-coefficient difference (LCCD) equation is a representation for a linear system based on the autoregressive moving-average equation.
Both sides of the above equation can be divided by, if it is not zero, normalizing and the LCCD equation can be written
This form of the LCCD equation is favorable to make it more explicit that the "current" output is a function of past outputs, current input, and previous inputs .
Read more about this topic: Z-transform
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