gr::filter::kernel::filterbank Class Reference

A filter bank with generic taps. More...

#include <gnuradio/filter/filterbank.h>

Public Member Functions
	filterbank (const std::vector< std::vector< float > > &taps)
	~filterbank ()
virtual void	set_taps (const std::vector< std::vector< float > > &taps)
void	print_taps ()
std::vector< std::vector< float > >	taps () const

Protected Attributes
unsigned int	d_nfilts
unsigned int	d_ntaps
std::vector < kernel::fir_filter_ccf * >	d_fir_filters
std::vector< std::vector< float > >	d_taps
std::vector< bool >	d_active
unsigned int	d_taps_per_filter

Detailed Description

A filter bank with generic taps.

This block takes in a vector of N complex inputs, passes them through N FIR filters, and outputs a vector of N complex outputs.

The only advantage of using this block over N individual FIR filter blocks is that it places less of a load on the scheduler.

The number of filters cannot be changed dynamically, however filters can be deactivated (i.e. no processing is done for them) by passing a vector of filter taps containing all zeros to them. In this case their entry in the output vector is a zero.

Constructor & Destructor Documentation

gr::filter::kernel::filterbank::filterbank

(

const std::vector< std::vector< float > > &

taps

)

Build the filterbank.

Parameters

taps	(vector of vector of floats / list of list of floats) Populates the filters.

gr::filter::kernel::filterbank::~filterbank

(

)

Member Function Documentation

void gr::filter::kernel::filterbank::print_taps

(

)

Print all of the filterbank taps to screen.

virtual void gr::filter::kernel::filterbank::set_taps ( const std::vector< std::vector< float > > &  taps )

virtual

Update the filterbank's filter taps.

Parameters

taps	(vector of vector of floats / list of list of floats) The prototype filter to populate the filterbank.

std::vector<std::vector<float> > gr::filter::kernel::filterbank::taps

(

)

const

Return a vector<vector<>> of the filterbank taps

Member Data Documentation

std::vector<bool> gr::filter::kernel::filterbank::d_active

protected

std::vector<kernel::fir_filter_ccf*> gr::filter::kernel::filterbank::d_fir_filters

protected

unsigned int gr::filter::kernel::filterbank::d_nfilts

protected

unsigned int gr::filter::kernel::filterbank::d_ntaps

protected

std::vector< std::vector<float> > gr::filter::kernel::filterbank::d_taps

protected

unsigned int gr::filter::kernel::filterbank::d_taps_per_filter

protected

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

• filterbank.h