GNU Radio 3.6.5 C++ API

gr_single_pole_iir< o_type, i_type, tap_type > Class Template Reference

class template for single pole IIR filter More...

#include <gr_single_pole_iir.h>

List of all members.

Public Member Functions

 gr_single_pole_iir (tap_type alpha=1.0)
 construct new single pole IIR with given alpha
o_type filter (const i_type input)
 compute a single output value.
void filterN (o_type output[], const i_type input[], unsigned long n)
 compute an array of N output values. input must have n valid entries.
void set_taps (tap_type alpha)
 install alpha as the current taps.
void reset ()
 reset state to zero
o_type prev_output () const

Protected Attributes

tap_type d_alpha
tap_type d_one_minus_alpha
o_type d_prev_output

Detailed Description

template<class o_type, class i_type, class tap_type>
class gr_single_pole_iir< o_type, i_type, tap_type >

class template for single pole IIR filter


Constructor & Destructor Documentation

template<class o_type, class i_type, class tap_type>
gr_single_pole_iir< o_type, i_type, tap_type >::gr_single_pole_iir ( tap_type  alpha = 1.0) [inline]

construct new single pole IIR with given alpha

computes y(i) = (1-alpha) * y(i-1) + alpha * x(i)


Member Function Documentation

template<class o_type , class i_type, class tap_type >
o_type gr_single_pole_iir< o_type, i_type, tap_type >::filter ( const i_type  input)

compute a single output value.

Returns:
the filtered input value.

Referenced by gr_single_pole_iir< gr_complex, i_type, double >::filterN().

template<class o_type, class i_type, class tap_type >
void gr_single_pole_iir< o_type, i_type, tap_type >::filterN ( o_type  output[],
const i_type  input[],
unsigned long  n 
)

compute an array of N output values. input must have n valid entries.

template<class o_type, class i_type, class tap_type>
o_type gr_single_pole_iir< o_type, i_type, tap_type >::prev_output ( ) const [inline]
template<class o_type, class i_type, class tap_type>
void gr_single_pole_iir< o_type, i_type, tap_type >::reset ( ) [inline]

reset state to zero

template<class o_type, class i_type, class tap_type>
void gr_single_pole_iir< o_type, i_type, tap_type >::set_taps ( tap_type  alpha) [inline]

Member Data Documentation


The documentation for this class was generated from the following file: