Build a Phased-Array Radar in Your Garage That Sees Through Walls (2015)
This is cool.<p>Radar's ability to steer the beam without moving always seems almost magical to me.<p>Fun fact: Radars control/ signal processing are now software.<p>Some caution is in order when playing with these things, remember, microwaves aren't just for radar they're for cooking too (one of the original microwave oven was called "radarrange")<p><a href="https://en.wikipedia.org/wiki/Percy_Spencer" rel="nofollow">https://en.wikipedia.org/wiki/Percy_Spencer</a><p>I implemented/updated code that analyzed a radars output and made sure that the side lobes weren't cooking people if they happened to be standing around the radar (or in the control house which was shielded). Even if you aren't in the path of the radar (eg its pointed up) there is some rf being spilled down by side lobes. work radar was significantly larger than this one, but on this one you can stand right in its beam path.