HALO hostile artillery location system

HALO, a hostile artillery location system produced by Selex Sensors (now Leonardo), is a passive acoustic weapons locator. It uses advanced data-processing techniques to quickly and accurately identify mortar and artillery positions. It can serve as an independent weapon locator, as a passive cueing system for a weapon locating radar or as an intelligence-gathering system.

The HALO system consists of several uncrewed sensor posts equipped with sensitive microphones to detect...