Synthetic Aperture Imaging Radars

I am trying to find examples of Imaging and Synthetic Aperture Radars built in Arduino. are there any models available. thanks a lot.

Tried this?

That link does little for me except crash my pad

This is the real story: http://glcharvat.com/shortrange/practical-examples-of-small-synthetic-aperture-radar-imaging-systems/

It would be quite a challenge to do something like that on an Arduino.