Starting at an Early Age, Greg developed numerous radar systems, rail SAR imaging sensors, phased array radar systems; holds several patents; and has developed many other sensors and radio and ...

Since then many developments have achieved finer resolution and faster processing of received SAR signals by digital processing. New and extended capabilities can be achieved by applying an active ...

It doesn’t have to be that way. [Graham Chow] built a simple phased-array using two SR04 modules, and it looks like he’s getting decent results. The hack starts out by pulling off the ...