FIR with internal buffer for float input, gr_complex output and gr_complex taps. More...

#include <gri_fir_filter_with_buffer_fcc.h>

Public Member Functions
	gri_fir_filter_with_buffer_fcc (const std::vector< gr_complex > &taps)
	construct new FIR with given taps.
	~gri_fir_filter_with_buffer_fcc ()
gr_complex	filter (float input)
	compute a single output value.
gr_complex	filter (const float input[], unsigned long dec)
	compute a single output value; designed for decimating filters.
void	filterN (gr_complex output[], const float input[], unsigned long n)
	compute an array of N output values.
void	filterNdec (gr_complex output[], const float input[], unsigned long n, unsigned long decimate)
	compute an array of N output values, decimating the input
void	set_taps (const std::vector< gr_complex > &taps)
	install `new_taps` as the current taps.
unsigned	ntaps () const
const std::vector< gr_complex >	get_taps () const
Protected Attributes
std::vector< gr_complex >	d_taps
float *	d_buffer
unsigned int	d_idx

Detailed Description

FIR with internal buffer for float input, gr_complex output and gr_complex taps.

Constructor & Destructor Documentation

gri_fir_filter_with_buffer_fcc::gri_fir_filter_with_buffer_fcc ( const std::vector< gr_complex > & taps )

construct new FIR with given taps.

Note that taps must be in forward order, e.g., coefficient 0 is stored in new_taps[0], coefficient 1 is stored in new_taps[1], etc.

gri_fir_filter_with_buffer_fcc::~gri_fir_filter_with_buffer_fcc ( )

Member Function Documentation

gr_complex gri_fir_filter_with_buffer_fcc::filter ( float input )

compute a single output value.

input is a single input value of the filter type

Returns:: the filtered input value.

gr_complex gri_fir_filter_with_buffer_fcc::filter	(	const float	input[],
		unsigned long	dec
	)

compute a single output value; designed for decimating filters.

input is a single input value of the filter type. The value of dec is the decimating value of the filter, so input[] must have dec valid values. The filter pushes dec number of items onto the circ. buffer before computing a single output.

Returns:: the filtered input value.

void gri_fir_filter_with_buffer_fcc::filterN	(	gr_complex	output[],
		const float	input[],
		unsigned long	n
	)

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.

void gri_fir_filter_with_buffer_fcc::filterNdec	(	gr_complex	output[],
		const float	input[],
		unsigned long	n,
		unsigned long	decimate
	)

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.

const std::vector<gr_complex> gri_fir_filter_with_buffer_fcc::get_taps ( ) const [inline]