dfilt.dfasymfir
Discrete-time, direct-form antisymmetric FIR filter
Syntax
Hd = dfilt.dfasymfir(b)
Hd = dfilt.dfasymfir
Description
Hd = dfilt.dfasymfir(b)
returns a
discrete-time, direct-form, antisymmetric FIR filter, Hd
, with
numerator coefficients b
.
Hd = dfilt.dfasymfir
returns a
default, discrete-time, direct-form, antisymmetric FIR filter, Hd
,
with b
=1. This filter passes the input through to the output
unchanged.
Note
Only the first half of vector b
is used because the second half
is assumed to be antisymmetric. In the figure below for an odd number of
coefficients, b(3)
= 0,
b(4)
= –b(2)
and
b(5)
= –b(1)
, and in the next
figure for an even number of coefficients,
b(4)
= –b(3)
,
b(5)
= –b(2)
, and
b(6)
= –b(1)
.
Examples
Version History
Introduced before R2006a