Low pass IIR filter
Purpose
Description
Macro Synopsis
Modules
Related Functions
References
Purpose
IIR lowpass filter
Description
"Low pass IIR filter" applies an IIR lowpass filter to the given signal x.
Its parameters are
- Filter design method:
- "Butterworth" (0)
- "Chebyshev" (1)
- "Elliptic" (2)
- Filter order n
- Pass band ripple in dB (Chebyshev and Elliptic only)
- Attenuation atten in negative dB (Elliptic only)
- Pass band edge frequency f0 in reciprocal units of the x-axis
Macro Synopsis
y = IIRLowPass(x,method,n,ripple,atten,f0);
signal x,y;
option method;
int n;
float ripple,atten,f0;
Modules
Filter
Related Functions
High pass IIR filter, Band pass IIR filter, Band reject IIR filter.
References
Oppenheim/Schafer [3], Parks/Burrus [4]