Compute intermediate samples between signal samples x(k*Ts) More...
#include <gnuradio/filter/mmse_fir_interpolator_ff.h>
Public Member Functions | |
mmse_fir_interpolator_ff () | |
mmse_fir_interpolator_ff (mmse_fir_interpolator_ff &&)=default | |
unsigned | ntaps () const |
unsigned | nsteps () const |
float | interpolate (const float input[], float mu) const |
compute a single interpolated output value. input must have ntaps() valid entries. input[0] .. input[ntaps() - 1] are referenced to compute the output value. More... | |
Protected Attributes | |
std::vector< kernel::fir_filter_fff > | filters |
Compute intermediate samples between signal samples x(k*Ts)
This implements a Minimum Mean Squared Error interpolator with 8 taps. It is suitable for signals where the bandwidth of interest B = 1/(4*Ts) Where Ts is the time between samples.
Although mu, the fractional delay, is specified as a float, it is actually quantized. 0.0 <= mu <= 1.0. That is, mu is quantized in the interpolate method to 32nd's of a sample.
For more information, in the GNU Radio source code, see:
gr::filter::mmse_fir_interpolator_ff::mmse_fir_interpolator_ff | ( | ) |
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default |
float gr::filter::mmse_fir_interpolator_ff::interpolate | ( | const float | input[], |
float | mu | ||
) | const |
unsigned gr::filter::mmse_fir_interpolator_ff::nsteps | ( | ) | const |
unsigned gr::filter::mmse_fir_interpolator_ff::ntaps | ( | ) | const |
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protected |