gr::filter::single_pole_iir_filter_ff Class Reference

single pole IIR filter with float input, float output More...

#include <single_pole_iir_filter_ff.h>

Inheritance diagram for gr::filter::single_pole_iir_filter_ff:

List of all members.

Public Types
typedef boost::shared_ptr < single_pole_iir_filter_ff >	sptr
Public Member Functions
virtual void	set_taps (double alpha)=0
Static Public Member Functions
static sptr	make (double alpha, unsigned int vlen=1)

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Detailed Description

single pole IIR filter with float input, float output

The input and output satisfy a difference equation of the form \f{ y[n] - (1-alpha) y[n-1] = alpha x[n] \f}

with the corresponding rational system function \f{ H(z) = \frac{alpha}{1 - (1-alpha) z^{-1}} \f}

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.

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Member Typedef Documentation

typedef boost::shared_ptr<single_pole_iir_filter_ff> gr::filter::single_pole_iir_filter_ff::sptr

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Member Function Documentation

static sptr gr::filter::single_pole_iir_filter_ff::make	(	double	alpha,
		unsigned int	vlen = 1
	)		[static]

virtual void gr::filter::single_pole_iir_filter_ff::set_taps

(

double

alpha

)

[pure virtual]

Implemented in gr::filter::single_pole_iir_filter_ff_impl.

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

• single_pole_iir_filter_ff.h