Little known Fabrice Bellard project. He worked with the ATSC to test the ATSC 3.0 PHY layer when he was consulting at DekTec.

Rather than potentially 1000 HN readers each spending 15 minutes on Google trying to work out what you are talking about, may I suggest that you expand that with a few plain English sentences that tell us what that means?

I have no idea what "ATSC" means, and I've been in tech for nearly 40 years now so I have a fairly good handle on this stuff.

Advanced Television Systems Committee. It's the US standards organization for terrestrial digital television. ATSC 3.0 is a new standard that's very similar to DVB-T2 (used in the UK for HDTV) at the PHY layer.

Looks like "PHY layer" means physical layer.