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_ccc &	operator= (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.

Parameters

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 &  )

delete

Member Function Documentation

decimation_rate()

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

inline

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.

Parameters

output	The output samples at the new sample rate.
input	An input vector of samples to be resampled
n_to_read	Number of samples to read from input.
n_read	(out) Number of samples actually read from input.

Returns

Number of samples put into output.

fractional_rate()

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

inline

group_delay()

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

inline

Get the group delay of the filter.

interpolation_rate()

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

inline

operator=()

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

delete

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

Parameters

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.

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

• pfb_arb_resampler.h