dfilt.dffir
Discrete-time, direct-form, FIR filter
Syntax
Hd = dfilt.dffir(b)
Hd = dfilt.dffir
Description
Hd = dfilt.dffir(b) returns a
discrete-time, direct-form finite impulse response (FIR) filter, Hd,
with numerator coefficients, b.
Hd = dfilt.dffir returns a default,
discrete-time, direct-form FIR filter, Hd, with
b=1. This filter passes the input through to the output
unchanged.
The resulting filter states column vector is
Examples
Create a direct-form FIR discrete-time filter with coefficients from a 30th order lowpass equiripple design:
b = firpm(30,[0 .1 .2 .5]*2,[1 1 0 0]); Hd = dfilt.dffir(b)
See Also
Introduced before R2006a