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@remi I'm sad that I've never heard of this before.

@remi Wait, are you re-implementing this in VHDL or something?

@Tathar Well, for avionics test, I do signal receipt and correlation and demodulation, then the other side modulation and transmission in #VHDL. However that's not what's making me walk through gnuradio. Apparently #Aldec has a block that lets you use #gnuradio in co-simulation with #Riviera-PRO. If I have an easier to work with signal generation or signal analysis tool, it would aid verification.

I've written signal toolbox stuff in VHDL for simulation, but I'll be honest, it's a pain in the ass to work with: tedious to construct and a pain in the ass to modify (depending on what you want.). There's a possibility gnuradio is easier (though also a possibility it is not. I've not yet got through a tutorial that actually gave me a sense of how the tool deals with time. I think it probably doesn't which means if I need a particular timing I will be sample counting and it'll make it anchored to sample rate when it'd just be nicer to wait X microseconds and then modulate.)

@remi @Tathar Aldec gnuradio cosim seems neat! thanks for the info