Z-Transform
★★★★☆Undergraduate
📖Definition
Technique to transform discrete signals to the complex plane
📐Formulas
Zx[n] = X(z) = Σx[n]z^-n
Inverse: x[n] = (1/2πi)∮X(z)z^n-1dz
✏️Examples
예제 1
Z{δ[n]} = 1
예제 2
Z{u[n]} = z/(z-1)
⚡Applications
Digital filter design
Discrete control systems
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