Dvb-t inner interleaver

hi everybody,
so far I’m working upon a GNURadio implementation of one of the
functional
block of the DVB-t standard, the “Inner interleaver”,

my trouble in this moment is that such functional block needs to perform
a
permutation on a 1512-bits length chunk:

i’ve tried to modify the step of this loop, this way:

STEP=1512;

for (int i= 0, i<= noutput_items, i+=STEP)

for (int w= 0, w<= 1511, w+=1) out[i+w]=…

but this doesn’t seem to work properly. ( I guess because I’m trying to
reference items too far away from my current position in the stream).

another thing i’ve tried is:

for (int i= 0, i<= noutput_items, i+=1)

for (int w= 0, w<= 1511, w+=1) out[1512*i+w]=…

but this even segfaults at runtine.

which is the wise way I should do interleaving on such big chunks in
GNURadio?

thank you guys,
and best regards

This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs