The necessities in Filter Theory

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Background [edit | edit source]

Bode plot[edit | edit source]

See swarthmore

OP Amp[edit | edit source]

Overview (pdf)

See Hyperphysics

Analog Filter Analysis (Continuous Time) [edit | edit source]

First Order Filters[edit | edit source]


Second Order Filters[edit | edit source]


Digital Filter Analysis (Discrete Time) [edit | edit source]

Sample Processing Methods[edit | edit source]

  • Tapped Delays (A.pdf)
  • Programming Considerations
  • Circular Buffers

FIR Filter Realizations[edit | edit source]

  • Direct Form FIR Filter
  • Canonical Form FIR Filter
  • Cascade Form FIR Filter

IIR Filter Realizations[edit | edit source]

  • Direct Form IIR Filter (A.pdf)
  • Canonical Form IIR Filter
  • Cascade Form IIR Filter


FIR (Finite Impulse Response) Filters[edit | edit source]

  • Block Processing Methods
  • Sample Processing Methods
  • Window Method
  • Kaiser Window
  • Frequency Sampling Method


IIR (Infinite Impulse Response) Filters[edit | edit source]

  • Bilinear Transform
  • 1st Order Lowpass and Highpass Filters
  • 2nd Order Lowpass and Highpass Filters
  • Parametric Equalizer Filters
  • Comb Filters
  • High Order Filters



Example Octave Codes for Digital Filters[edit | edit source]

Octave Functions for Filters[edit | edit source]

  • Octave Functions for Filters (A.pdf)




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