SWL - markro92 on the Amsat-DL forum has developed a software demodulator for use with SDRs. The thread is here: https://forum.amsat-dl.org/ind…ftware-dvb-s-demodulator/ I am not sure that the DVB-S1 is working too well in the current version (2.0.21).
It appears to work with RTL sticks, Lime, Airspy, HackRF and AD Pluto SDRs and maybe others. I tried it with an AD Pluto on the radio stations on 16E. It's quite hard to get results but it can work down to very low symbol rates. It's not quite blind scan but you don't have to know all the parameters if you are prepared to play for a while. It should also work at high symbol rates using a Lime SDR or other high sample rate RX. It probably needs a fast PC as well.
Plots are in this thread: RE: 16.0°E Eutelsat 16A