Aselsan completes factory acceptance test of its PIRI naval Infrared Search and Tracking system Aselsan completes factory acceptance test of its PIRI naval Infrared Search and Tracking system Tuesday, 12 January 2021 17:48 According to information published by the defenceturk.net website, Turkish company Aselsan has completed factory acceptance test of its PIRI (Panoramic Infrared Imaging) naval Infrared Search and Tracking system designed to be mounted on the Multi-Purpose Amphibious Assault Ship TCG ANADOLU for Turkish Navy. (Picture source Turkishnavy.net) The PIRI (Panoramic Infrared Imaging) is a high-performance Infrared Search and Track system designed for maritime platforms in order to passively detect and track multiple air and surface vehicles and missiles with its staring sensors.