SPUC::iir_lpf< Numeric, Coeff > Class Template Reference

#include <iir_lpf.h>

Inheritance diagram for SPUC::iir_lpf< Numeric, Coeff >:

Collaboration diagram for SPUC::iir_lpf< Numeric, Coeff >:

Public Member Functions
	iir_lpf (Coeff A=0, long b=0)
Coeff	get_a0 ()
Coeff	get_b0 ()
Numeric	clock (Numeric input)
	Input new sample and calculate output. More...
Public Member Functions inherited from SPUC::iir_lpf1< Numeric, Coeff >
	iir_lpf1 (Coeff A=0, long b=0)
void	set_coeff (Coeff A)
void	set_round_bits (long x)
	iir_lpf1 (const char *file)
	Constructor reading coefficient from a file. More...
void	print ()
	Print out coefficients. More...
Numeric	clock (Numeric input)
	Input new sample and calculate output. More...
void	reset ()
	Reset. More...

Protected Attributes
Coeff	a
Protected Attributes inherited from SPUC::iir_lpf1< Numeric, Coeff >
Coeff	gain
Numeric	out
Numeric	previous_out
Numeric	previous_in
quantiser< Numeric >	Q

Detailed Description

template<class Numeric, class Coeff = float_type>
class SPUC::iir_lpf< Numeric, Coeff >

The filter is the first order low pass digital filter given by

where a is real and |a| < 1 Note: Not normalized

Author

Tony Kirke

Constructor & Destructor Documentation

template<class Numeric , class Coeff = float_type>

SPUC::iir_lpf< Numeric, Coeff >::iir_lpf ( Coeff  A = 0, long  b = 0  )

inline

References SPUC::iir_lpf1< Numeric, Coeff >::gain.

Member Function Documentation

template<class Numeric , class Coeff = float_type>

Numeric SPUC::iir_lpf< Numeric, Coeff >::clock ( Numeric  input )

inline

Input new sample and calculate output.

References SPUC::iir_lpf1< Numeric, Coeff >::gain, SPUC::iir_lpf1< Numeric, Coeff >::out, SPUC::iir_lpf1< Numeric, Coeff >::previous_in, SPUC::iir_lpf1< Numeric, Coeff >::previous_out, and SPUC::iir_lpf1< Numeric, Coeff >::Q.

template<class Numeric , class Coeff = float_type>

Coeff SPUC::iir_lpf< Numeric, Coeff >::get_a0 ( )

inline

References SPUC::iir_lpf1< Numeric, Coeff >::gain.

template<class Numeric , class Coeff = float_type>

Coeff SPUC::iir_lpf< Numeric, Coeff >::get_b0 ( )

inline

Member Data Documentation

template<class Numeric , class Coeff = float_type>

Coeff SPUC::iir_lpf< Numeric, Coeff >::a

protected

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

• iir_lpf.h