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

[Anderson, Douglas J.]

I should mentioned that I am referring to page 30 and 31 in this pdf.

https://github.com/kit-cel/gr-lte/blob/master/LTE_Thesis_Kristian_Maier.pdf

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From: discuss-gnuradio-bounces+address@hidden [discuss-gnuradio-bounces+address@hidden on behalf of Anderson, Douglas J. address@hidden
Sent: Friday, July 24, 2015 3:47 PM
To: GNURadio Discussion List
Subject: [Discuss-gnuradio] Where to find the "Decimating FIR Filter" for gr-lte

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