[Discuss-gnuradio] Where to find the "Decimating FIR Filter" for gr-lte

[Anderson, Douglas J.]

Hi all,

I'm taking a read through Kristian Maier's thesis document on the gr-lte repo (and by read I mean looking at the pictures because I don't know German).

Looks like he was piping his Coarse PSS Sync block into a "Decimating FIR Filter" block, but I can't seem to find that (I don't use GRC or even have it built, so I'm just googling and looking through gnuradio.filter for the name I would use via Python).

Alternately, I read through Tom's blob post on using fft_filter in place of FIR filters: http://www.trondeau.com/blog/2014/2/27/to-use-or-not-to-use-fft-filters.html, and it seems like there may be some benefit to using it instead of the FIR for the ~50 taps in Kristians filter.

Any pointers?

-Doug