dsp-0.1: Haskell Digital Signal Processing Contents Index

DSP.Filter.Analog.Transform Portability portable Stability experimental Maintainer m.p.donadio@ieee.org

Description

Analog prototype filter transforms

Synopsis

a_lp2lp :: Double -> ([Double], [Double]) -> ([Double], [Double]) a_lp2hp :: Double -> ([Double], [Double]) -> ([Double], [Double]) a_lp2bp :: Double -> Double -> ([Double], [Double]) -> ([Double], [Double]) a_lp2bs :: Double -> Double -> ([Double], [Double]) -> ([Double], [Double])

Documentation

a_lp2lp

:: Double wc -> ([Double], [Double]) (b,a) -> ([Double], [Double]) (b',a') Lowpass to lowpass: s --> s/wc

a_lp2hp

:: Double wc -> ([Double], [Double]) (b,a) -> ([Double], [Double]) (b',a') Lowpass to highpass: s --> wc/s

a_lp2bp

:: Double wl -> Double wu -> ([Double], [Double]) (b,a) -> ([Double], [Double]) (b',a') Lowpass to bandpass: s --> (s^2 + wl*wu) / (s(wu-wl))

a_lp2bs

:: Double wl -> Double wu -> ([Double], [Double]) (b,a) -> ([Double], [Double]) (b',a') Lowpass to bandstop: s --> (s(wu-wl)) / (s^2 + wl*wu)

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