gr_rational_resampler_base_XXX query

GNU Radio
1

Dear All,

I have a question in gr_rational_resampler_base_XXX.cc module.

  1. I got 2040 samples instead of 2048 or 2060 samples instead of 2048.
    Shall
    I use this module for interpolation and decimation? Or any other
    suitable
    module is available?

  2. In function

void

@NAME@::install_taps (const std::vector<@TAP_TYPE@> &taps)

{

int nfilters = interpolation ();

int nt = taps.size () / nfilters;

assert (nt * nfilters == (int) taps.size ());

std::vector< std::vector <@TAP_TYPE@> > xtaps (nfilters);

for (int n = 0; n < nfilters; n++)

xtaps[n].resize (nt);

for (int i = 0; i < (int) taps.size(); i++)

xtaps[i % nfilters][i / nfilters] = taps[i];  ------------> How to

calculate taps[i] value here. Any table or module?

for (int n = 0; n < nfilters; n++)

d_firs[n]->set_taps (xtaps[n]);

set_history (nt);

d_updated = false;

Thanks in advance

Regards,

Jesuraj

2

On Fri, Jun 12, 2009 at 10:47:11AM +0530, Jesuraj.V wrote:

for (int n = 0; n < nfilters; n++)
d_firs[n]->set_taps (xtaps[n]);

set_history (nt);
d_updated = false;

Thanks in advance

Regards,
Jesuraj

Please see
gnuradio-core/src/python/gnuradio/blks2impl/rational_resampler.py

from gnuradio import gr, blks2

rr = blks2.rational_resampler_ccf(…)

Eric