gr::filter::single_pole_iir< gr_complex, i_type, double > Class Template Reference

#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

Constructor & Destructor Documentation

single_pole_iir()

template<class i_type >

gr::filter::single_pole_iir< gr_complex, i_type, double >::single_pole_iir ( double  alpha = 1.0 )

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().

Member Function Documentation

filter()

template<class i_type >

gr_complex gr::filter::single_pole_iir< gr_complex, i_type, double >::filter

(

const i_type

input

)

compute a single output value.

Returns

the filtered input 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.

filterN()

template<class i_type >

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().

prev_output()

template<class i_type >

gr_complexd gr::filter::single_pole_iir< gr_complex, i_type, double >::prev_output ( ) const

inline

References gr::filter::single_pole_iir< o_type, i_type, tap_type >::d_prev_output.

reset()

template<class i_type >

void gr::filter::single_pole_iir< gr_complex, i_type, double >::reset ( )

inline

reset state to zero

References gr::filter::single_pole_iir< o_type, i_type, tap_type >::d_prev_output.

set_taps()

template<class i_type >

void gr::filter::single_pole_iir< gr_complex, i_type, double >::set_taps ( double  alpha )

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.

Member Data Documentation

d_alpha

template<class i_type >

double gr::filter::single_pole_iir< gr_complex, i_type, double >::d_alpha

protected

d_one_minus_alpha

template<class i_type >

double gr::filter::single_pole_iir< gr_complex, i_type, double >::d_one_minus_alpha

protected

d_prev_output

template<class i_type >

gr_complexd gr::filter::single_pole_iir< gr_complex, i_type, double >::d_prev_output

protected

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

• single_pole_iir.h