Comment by MadnessASAP
1 year ago
Sounds like passive radar moved to the accoustic domain. It's a neat thing and there is some open source work around it. However it's also a good way to run afoul of ITAR, passive radar is still one of those secret sauce, software is a munition type things.
I have a passive radar. It also is a direction finding radio. I didn't have to jump through any hoops.