This process has been extended to satellites and applies to not just the earth, but to other terrestrial bodies in the solar system, notably Venus and Titan which are eternally shrouded in clouds.
For further reading I suggest looking at NASA’s SAR Handbook
And if you want to look at real SAR data the Alaska Satellite Facility has lots of public data
Commercial images in this video come from
Capella Space – https://www.capellaspace.com/
IceEye – https://www.iceye.com/
Ursa Space – https://www.ursaspace.com/
Synspective – https://synspective.com/