gr_fir< o_type, i_type, tap_type > Class Template Reference

base class template for Finite Impulse Response filter (FIR) More...

#include <gr_fir.h>

List of all members.

Public Member Functions
	gr_fir (const vector< tap_type > &new_taps)
	construct new FIR with given taps.
	gr_fir ()
virtual	~gr_fir ()
virtual o_type	filter (const i_type input[])
	compute a single output value.
virtual void	filterN (o_type output[], const i_type input[], unsigned long n)
	compute an array of N output values.
virtual void	filterNdec (o_type output[], const i_type input[], unsigned long n, unsigned decimate)
	compute an array of N output values, decimating the input
unsigned	ntaps () const
virtual void	set_taps (const vector< tap_type > &new_taps)
	install new_taps as the current taps.
Protected Attributes
vector< tap_type >	taps

---

Detailed Description

template<class o_type, class i_type, class tap_type>
class gr_fir< o_type, i_type, tap_type >

base class template for Finite Impulse Response filter (FIR)

---

Constructor & Destructor Documentation

template<class o_type, class i_type, class tap_type> gr_fir< o_type, i_type, tap_type >::gr_fir (  const vector< tap_type > &  new_taps  )  [inline]

construct new FIR with given taps. Note that taps must be in backwards order, e.g., coefficient 0 is stored in new_taps[N-1], coefficient 1 is stored in new_taps[N-2], etc.

template<class o_type, class i_type, class tap_type> gr_fir< o_type, i_type, tap_type >::gr_fir (   )  [inline]

template<class o_type, class i_type, class tap_type> virtual gr_fir< o_type, i_type, tap_type >::~gr_fir (   )  [inline, virtual]

---

Member Function Documentation

template<class o_type, class i_type, class tap_type> o_type gr_fir< o_type, i_type, tap_type >::filter (  const i_type  input[]  )  [virtual]

compute a single output value. input must have ntaps() valid entries. input[0] .. input[ntaps() - 1] are referenced to compute the output value. Returns: the filtered input value.

template<class o_type, class i_type, class tap_type> void gr_fir< o_type, i_type, tap_type >::filterN (  o_type  output[], const i_type  input[], unsigned long  n )  [virtual]

compute an array of N output values. input must have (n - 1 + ntaps()) valid entries. input[0] .. input[n - 1 + ntaps() - 1] are referenced to compute the output values.

template<class o_type, class i_type, class tap_type> void gr_fir< o_type, i_type, tap_type >::filterNdec (  o_type  output[], const i_type  input[], unsigned long  n, unsigned  decimate )  [virtual]

compute an array of N output values, decimating the input input must have (decimate * (n - 1) + ntaps()) valid entries. input[0] .. input[decimate * (n - 1) + ntaps() - 1] are referenced to compute the output values.

template<class o_type, class i_type, class tap_type> unsigned gr_fir< o_type, i_type, tap_type >::ntaps (   )  const [inline]

Returns: number of taps in filter.

template<class o_type, class i_type, class tap_type> virtual void gr_fir< o_type, i_type, tap_type >::set_taps (  const vector< tap_type > &  new_taps  )  [inline, virtual]

install new_taps as the current taps.

---

Member Data Documentation

template<class o_type, class i_type, class tap_type> vector<tap_type> gr_fir< o_type, i_type, tap_type >::taps [protected]

---

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

• gr_fir.h

---