#include <gnuradio/filter/single_pole_iir.h>
Public Member Functions | |
| single_pole_iir (double alpha=1.0) | |
| construct new single pole IIR with given alpha More... | |
| gr_complex | filter (const i_type input) |
| compute a single output value. More... | |
| void | filterN (gr_complex output[], const i_type input[], unsigned long n) |
compute an array of N output values. input must have n valid entries. More... | |
| void | set_taps (double alpha) |
install alpha as the current taps. More... | |
| void | reset () |
| reset state to zero More... | |
| gr_complexd | prev_output () const |
Protected Attributes | |
| double | d_alpha |
| double | d_one_minus_alpha |
| gr_complexd | d_prev_output |
|
inline |
construct new single pole IIR with given alpha
computes y(i) = (1-alpha) * y(i-1) + alpha * x(i)
References gr::filter::single_pole_iir< o_type, i_type, tap_type >::d_prev_output, and gr::filter::single_pole_iir< o_type, i_type, tap_type >::set_taps().
| gr_complex gr::filter::single_pole_iir< gr_complex, i_type, double >::filter | ( | const i_type | input | ) |
compute a single output value.
References gr::filter::single_pole_iir< o_type, i_type, tap_type >::d_alpha, gr::filter::single_pole_iir< o_type, i_type, tap_type >::d_one_minus_alpha, and gr::filter::single_pole_iir< o_type, i_type, tap_type >::d_prev_output.
| void gr::filter::single_pole_iir< gr_complex, i_type, double >::filterN | ( | gr_complex | output[], |
| const i_type | input[], | ||
| unsigned long | n | ||
| ) |
compute an array of N output values. input must have n valid entries.
References gr::filter::single_pole_iir< o_type, i_type, tap_type >::filter().
|
inline |
|
inline |
reset state to zero
References gr::filter::single_pole_iir< o_type, i_type, tap_type >::d_prev_output.
|
inline |
install alpha as the current taps.
References gr::filter::single_pole_iir< o_type, i_type, tap_type >::d_alpha, and gr::filter::single_pole_iir< o_type, i_type, tap_type >::d_one_minus_alpha.
|
protected |
|
protected |
|
protected |