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

#include <single_pole_iir.h>

Public Member Functions
	single_pole_iir (double alpha=1.0)
	construct new single pole IIR with given alpha
gr_complex	filter (const i_type input)
	compute a single output value.
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.
void	set_taps (double alpha)
	install alpha as the current taps.
void	reset ()
	reset state to zero
gr_complexd	prev_output () const

Protected Attributes
double	d_alpha
double	d_one_minus_alpha
gr_complexd	d_prev_output
bool	d_reset_output

Constructor & Destructor Documentation

single_pole_iir()

template<class i_type>

gr::CyberRadio::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 d_prev_output, and set_taps().

Member Function Documentation

filter()

template<class i_type>

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

(

const i_type

input

)

compute a single output value.

Returns

the filtered input value.

References d_alpha, d_one_minus_alpha, and d_prev_output.

Referenced by filterN().

filterN()

template<class i_type>

void gr::CyberRadio::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 filter().

prev_output()

template<class i_type>

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

inline

References d_prev_output.

reset()

template<class i_type>

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

inline

reset state to zero

References d_prev_output.

set_taps()

template<class i_type>

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

inline

install alpha as the current taps.

References d_alpha, and d_one_minus_alpha.

Referenced by single_pole_iir().

Member Data Documentation

d_alpha

template<class i_type>

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

protected

Referenced by filter(), and set_taps().

d_one_minus_alpha

template<class i_type>

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

protected

Referenced by filter(), and set_taps().

d_prev_output

template<class i_type>

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

protected

Referenced by filter(), prev_output(), reset(), and single_pole_iir().

d_reset_output

bool gr::CyberRadio::single_pole_iir< gr_complex, i_type, double >::d_reset_output

protected

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

• single_pole_iir.h