Signals and Systems/Filter Design

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Signals and Systems

This page is going to talk about manually designing filters using the complex Laplace plane.

Contents 1 Complex Plane 2 Effect of Poles 3 Effect of Zeros 4 Constructing Filters

[edit] Complex Plane

[edit] Effect of Poles

[edit] Effect of Zeros

Adding a zero brings the transfer function to a minimum at the zero location. For example for a first order highpass filter a it is desirable to place the a zero at 0.

[edit] Constructing Filters