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

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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

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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)

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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(), and atsci_slicer_agc::scale().

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]

install alpha as the current taps.

Referenced by gr_single_pole_iir< gr_complex, i_type, double >::gr_single_pole_iir(), gr_single_pole_iir< double, double, double >::gr_single_pole_iir(), gr_pwr_squelch_ff::set_alpha(), and gr_pwr_squelch_cc::set_alpha().

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Member Data Documentation

template<class o_type, class i_type, class tap_type>

tap_type gr_single_pole_iir< o_type, i_type, tap_type >::d_alpha [protected]

Referenced by gr_single_pole_iir< gr_complex, i_type, double >::filter(), gr_single_pole_iir< gr_complex, i_type, double >::set_taps(), and gr_single_pole_iir< double, double, double >::set_taps().

template<class o_type, class i_type, class tap_type>

tap_type gr_single_pole_iir< o_type, i_type, tap_type >::d_one_minus_alpha [protected]

Referenced by gr_single_pole_iir< gr_complex, i_type, double >::filter(), gr_single_pole_iir< gr_complex, i_type, double >::set_taps(), and gr_single_pole_iir< double, double, double >::set_taps().

template<class o_type, class i_type, class tap_type>

o_type gr_single_pole_iir< o_type, i_type, tap_type >::d_prev_output [protected]

Referenced by gr_single_pole_iir< gr_complex, i_type, double >::filter(), gr_single_pole_iir< gr_complex, i_type, double >::gr_single_pole_iir(), gr_single_pole_iir< double, double, double >::gr_single_pole_iir(), gr_single_pole_iir< gr_complex, i_type, double >::prev_output(), gr_single_pole_iir< double, double, double >::prev_output(), gr_single_pole_iir< gr_complex, i_type, double >::reset(), and gr_single_pole_iir< double, double, double >::reset().

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

• gr_single_pole_iir.h