The Indian Navy on 18th November formally inducted four types of indigenously developed sonars that will boost its underwater surveillance capability.
The systems included Abhay, which is a compact hull mounted sonar for shallow water crafts; Humsa UG, which is an upgrade for the Humsa sonar system; NACS, or the Near-field Acoustic Characterisation System; and AIDSS, or the Advanced Indigenous Distress sonar system for submarines. The systems have been designed and developed by Naval Physical and Oceanographic Laboratory, a Kochi-based laboratory of DRDO.
Source – The Hindu