Statements (32)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Electronic Filter
|
| gptkbp:alternativeTo |
gptkb:Chebyshev_filter
Bessel filter Elliptic filter |
| gptkbp:application |
gptkb:signal_processing
Control systems Audio electronics |
| gptkbp:characteristic |
Maximally flat frequency response in passband
|
| gptkbp:designedBy |
gptkb:Stephen_Butterworth
|
| gptkbp:frequency |
Maximally flat in passband
|
| gptkbp:groupDelay |
Non-constant
|
| https://www.w3.org/2000/01/rdf-schema#label |
Butterworth Filter
|
| gptkbp:introducedIn |
1930
|
| gptkbp:namedAfter |
gptkb:Stephen_Butterworth
|
| gptkbp:parameter |
Cutoff frequency (fc)
Order (n) |
| gptkbp:poleLocation |
Equally spaced on a circle in the left half of the s-plane
|
| gptkbp:property |
Monotonic amplitude response
No ripples in passband Slow roll-off compared to Chebyshev and Elliptic filters |
| gptkbp:transferFunction |
1 / sqrt(1 + (f/fc)^(2n))
|
| gptkbp:type |
Band-pass filter
Band-stop filter High-pass filter Low-pass filter |
| gptkbp:usedFor |
Noise reduction
Anti-aliasing Data smoothing |
| gptkbp:usedIn |
Analog filters
Digital filters |
| gptkbp:bfsParent |
gptkb:Digital_Filters
|
| gptkbp:bfsLayer |
5
|