DSP.Filter.FIR.FIR

Finite Impuse Response filtering functions

Documentation

fir

Arguments

:: Num a

=> Array Int a

h[n]

-> [a]

x[n]

-> [a]

y[n]

Implements the following function, which is a FIR filter

y[n] = sum(k=0,M) h[k]*x[n-k]

We implement the fir function with five helper functions, depending on the type of the filter. In the following functions, we use the O&S convention that m is the order of the filter, which is equal to the number of taps minus one.

test :: Bool