US Army Research Lab researchers have developed a new low-frequency, ultra-wideband radar, which is capable of sensing through walls.

The penetrating radar system uses synchronous impulse reconstruction to ‘sample’ objects recreating a high-fidelity representation of the object, using low-cost analogue-to-digital converter technology.

The system uses an array of 16 antennas with individual synchronous reconstruction receiving data from the 16 channels in a computer-based ‘beam-forming network’.

The sense through walls the system uses conventional SAR processing, which reconstructs images from many viewing angles of each individual target.