I would like to use gr_fractional_interpolator

But I get:

self.interp=gr.fractional_interpolator(

options.phase_shift,interp_ratio)

AttributeError: ‘module’ object has no attribute

‘fractional_interpolator’

Apparantly the module doesn’t exist anymore, although

gr_fractional_interpolator.h and gr_fractional_interpolator.cc exist.

I suspect there should also be a:

gr_fractional_interpolator.i

But I couldn’t find it in my source or any of the older gnuradio

releases I have laying around.

I know there is a rational_resampler in gnuradio now, but there you have

to give your interpolator taps.

The good thing of gr_fractional_interpolator is that it uses

mmse_fir_interpolator which has optimized performance for

low-tap-numbers.

Could anybody tell me how to get gr_fractional_interpolator to work or

where gr_fractional_interpolator.i is.

Greetings,

Martin