gr_single_pole_iir_filter_cc Class Reference
[Filters]

single pole IIR filter with complex input, complex output

The input and output satisfy a difference equation of the form More...

Inheritance diagram for gr_single_pole_iir_filter_cc:

Collaboration diagram for gr_single_pole_iir_filter_cc:

List of all members.

Public Member Functions

~gr_single_pole_iir_filter_cc ()

void set_taps (double alpha)

int work (int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)

just like gr_block::general_work, only this arranges to call consume_each for you

Friends

gr_single_pole_iir_filter_cc_sptr gr_make_single_pole_iir_filter_cc (double alpha, unsigned int vlen)

Detailed Description

single pole IIR filter with complex input, complex output

The input and output satisfy a difference equation of the form

$y[n] - (1-alpha) y[n-1] = alpha x[n]$

with the corresponding rational system function

$H(z) = \frac{alpha}{1 - (1-alpha) z^{-1}}$

Note that some texts define the system function with a + in the denominator. If you're using that convention, you'll need to negate the feedback tap.

gr_single_pole_iir_filter_cc::~gr_single_pole_iir_filter_cc ( )

void gr_single_pole_iir_filter_cc::set_taps ( double alpha )

int gr_single_pole_iir_filter_cc::work	(	int	noutput_items,
		gr_vector_const_void_star &	input_items,
		gr_vector_void_star &	output_items
	)			`[virtual]`

just like gr_block::general_work, only this arranges to call consume_each for you

The user must override work to define the signal processing code

gr_single_pole_iir_filter_cc_sptr gr_make_single_pole_iir_filter_cc	(	double	alpha,
		unsigned int	vlen
	)			`[friend]`

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


Public Member Functions
	~gr_single_pole_iir_filter_cc ()
void	set_taps (double alpha)
int	work (int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
	just like gr_block::general_work, only this arranges to call consume_each for you
Friends
gr_single_pole_iir_filter_cc_sptr	gr_make_single_pole_iir_filter_cc (double alpha, unsigned int vlen)