IIR Lowpass Filter
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README.md

Discrete-Time IIR Filter (lowpass - real)


noise

Developer: Ânderson I. Silva

Repository: https://github.com/aignacio/iir_filter

Parameters:

  • Fs : 48000 Samples/s
  • Fc : 1000 Hz
  • Fs : 1500 Hz
  • Apass: 1dB
  • Astop: -15dB
  • Filter Structure : Direct-Form I, Second-Order Sections
  • Architecture: Cascade
  • Number of Sections : 3
  • Stable : Yes
  • Linear Phase : No
  • Arithmetic : fixed

noise noise

Design Method Information

  • Design Algorithm : butter

Design Options

  • Match Exactly : stopband
  • Scale Norm : no scaling
  • SystemObject : false

Design Specifications

  • Sample Rate : N/A (normalized frequency)
  • Response : Lowpass
  • Specification : Fp,Fst,Ap,Ast
  • Stopband Atten. : 15 dB
  • Passband Ripple : 1 dB
  • Stopband Edge : 0.0625
  • Passband Edge : 0.041667

Measurements

  • Sample Rate : N/A (normalized frequency)
  • Passband Edge : 0.041667
  • 3-dB Point : 0.047064
  • 6-dB Point : 0.051568
  • Stopband Edge : 0.0625
  • Passband Ripple : 0.89022 dB
  • Stopband Atten. : 14.9855 dB
  • Transition Width : 0.020833