GNU Radio Manual and C++ API Reference
The Free & Open Software Radio Ecosystem
gr::filter::kernel::pfb_arb_resampler_ccc Class Reference

#include <gnuradio/filter/pfb_arb_resampler.h>

Public Member Functions

 pfb_arb_resampler_ccc (float rate, const std::vector< gr_complex > &taps, unsigned int filter_size)
 pfb_arb_resampler_ccc (const pfb_arb_resampler_ccc &)=delete
pfb_arb_resampler_cccoperator= (const pfb_arb_resampler_ccc &)=delete
void set_taps (const std::vector< gr_complex > &taps)
std::vector< std::vector< gr_complex > > taps () const
void print_taps ()
void set_rate (float rate)
void set_phase (float ph)
float phase () const
unsigned int taps_per_filter () const
unsigned int interpolation_rate () const
unsigned int decimation_rate () const
float fractional_rate () const
int group_delay () const
float phase_offset (float freq, float fs)
int filter (gr_complex *output, gr_complex *input, int n_to_read, int &n_read)

Constructor & Destructor Documentation

◆ pfb_arb_resampler_ccc() [1/2]

gr::filter::kernel::pfb_arb_resampler_ccc::pfb_arb_resampler_ccc ( float  rate,
const std::vector< gr_complex > &  taps,
unsigned int  filter_size 

Creates a kernel to perform arbitrary resampling on a set of samples.

rate(float) Specifies the resampling rate to use
taps(vector/list of complex) The prototype filter to populate the filterbank. The taps * should be generated at the filter_size sampling rate.
filter_size(unsigned int) The number of filters in the filter bank. This is directly related to quantization noise introduced during the resampling. Defaults to 32 filters.

◆ pfb_arb_resampler_ccc() [2/2]

gr::filter::kernel::pfb_arb_resampler_ccc::pfb_arb_resampler_ccc ( const pfb_arb_resampler_ccc )

Member Function Documentation

◆ decimation_rate()

unsigned int gr::filter::kernel::pfb_arb_resampler_ccc::decimation_rate ( ) const

◆ filter()

int gr::filter::kernel::pfb_arb_resampler_ccc::filter ( gr_complex output,
gr_complex input,
int  n_to_read,
int &  n_read 

Performs the filter operation that resamples the signal.

This block takes in a stream of samples and outputs a resampled and filtered stream. This block should be called such that the output has rate * n_to_read amount of space available in the output buffer.

outputThe output samples at the new sample rate.
inputAn input vector of samples to be resampled
n_to_readNumber of samples to read from input.
n_read(out) Number of samples actually read from input.
Number of samples put into output.

◆ fractional_rate()

float gr::filter::kernel::pfb_arb_resampler_ccc::fractional_rate ( ) const

◆ group_delay()

int gr::filter::kernel::pfb_arb_resampler_ccc::group_delay ( ) const

Get the group delay of the filter.

◆ interpolation_rate()

unsigned int gr::filter::kernel::pfb_arb_resampler_ccc::interpolation_rate ( ) const

◆ operator=()

pfb_arb_resampler_ccc& gr::filter::kernel::pfb_arb_resampler_ccc::operator= ( const pfb_arb_resampler_ccc )

◆ phase()

float gr::filter::kernel::pfb_arb_resampler_ccc::phase ( ) const

Gets the current phase of the resampler in radians (2 to 2pi).

◆ phase_offset()

float gr::filter::kernel::pfb_arb_resampler_ccc::phase_offset ( float  freq,
float  fs 

Calculates the phase offset expected by a sine wave of frequency freq and sampling rate fs (assuming input sine wave has 0 degree phase).

◆ print_taps()

void gr::filter::kernel::pfb_arb_resampler_ccc::print_taps ( )

Print all of the filterbank taps to screen.

◆ set_phase()

void gr::filter::kernel::pfb_arb_resampler_ccc::set_phase ( float  ph)

Sets the current phase offset in radians (0 to 2pi).

◆ set_rate()

void gr::filter::kernel::pfb_arb_resampler_ccc::set_rate ( float  rate)

Sets the resampling rate of the block.

◆ set_taps()

void gr::filter::kernel::pfb_arb_resampler_ccc::set_taps ( const std::vector< gr_complex > &  taps)

Resets the filterbank's filter taps with the new prototype filter

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

◆ taps()

std::vector<std::vector<gr_complex> > gr::filter::kernel::pfb_arb_resampler_ccc::taps ( ) const

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

◆ taps_per_filter()

unsigned int gr::filter::kernel::pfb_arb_resampler_ccc::taps_per_filter ( ) const

Gets the number of taps per filter.

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