Discrete convolution filterbank step for CPU. More...

Inherits dsp::Filterbank::Engine.

Public Member Functions
	FilterbankEngineCPU ()
	Default Constructor.

void	setup (dsp::Filterbank *)

void	set_scratch (float *)

void	perform (const dsp::TimeSeries in, dsp::TimeSeries out, uint64_t npart, uint64_t in_step, uint64_t out_step)

void	perform (const dsp::TimeSeries in, dsp::TimeSeries out, dsp::TimeSeries *zero_DM_out, uint64_t npart, uint64_t in_step, uint64_t out_step)

void	finish ()

FTransform::Plan *	get_forward ()

FTransform::Plan *	get_backward ()

Protected Attributes
FTransform::Plan *	forward

FTransform::Plan *	backward

bool	real_to_complex
	Complex-valued data.

float *	scratch
	device scratch sapce

float *	freq_domain_scratch [3]
	scratch space for forward fft This is an array of float pointers because we might be dealing not only with multiple polarizations, but also with cross polarization.

float *	time_domain_scratch
	scratch space for backward fft

float *	windowed_time_domain_scratch
	scratch space for apodization operation

const dsp::Response *	response
	response kernel, from Filterbank

const dsp::Response *	zero_DM_response
	zero DM response, from Filterbank

const dsp::Apodization *	temporal_apodization
	apodization kernel, from Filterbank

const dsp::Apodization *	spectral_apodization

dsp::Response *	passband
	passband kernel, from Filterbank

bool	matrix_convolution
	Whether or not to do matrix convolution, from Filterbank.

unsigned	nchan_subband
	number of output channels per input channel

unsigned	freq_res
	frequency resolution of response (dsp::Response::get_ndat)

unsigned	nfilt_pos
	positive impulse from response (dsp::Response::get_impulse_pos)

unsigned	nfilt_neg
	negative impulse from response (dsp::Response::get_impulse_neg)

uint64_t	nsamp_fft
	number of samples in forward fft

unsigned	nkeep
	number of samples to keep from each input sample. More...

bool	verbose

Detailed Description

Discrete convolution filterbank step for CPU.

Member Data Documentation

unsigned dsp::FilterbankEngineCPU::nkeep

protected

number of samples to keep from each input sample.

This is essentially the number of fft points minus the total smearing from the response

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