SONAR Technology Current Affairs - 2019
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The Indian Navy has formally inducted four types of indigenously developed sonars that will boost its underwater surveillance capability.
The systems have been designed and developed by NPOL Naval Physical & Oceanographic Laboratory (NPOL), a Kochi based laboratory of DRDO.
These 4 types of sonars are
- Abhay: It is an advanced hull mounted active-cum-passive integrated sonar system.
- It has been designed and developed for the smaller platforms such as shallow water crafts and coastal surveillance/patrol vessels.
- It is capable of detecting, classifying, localizing and tracking sub-surface and surface targets in both its active and passive modes of operation.
- Indian Navy has proposed to induct this SONAR on three of the Abhay class ships.
- Humsa UG: It has been designed for upgrading the existing Humsa sonar system for intensifying the command over the high seas.
- This system is proposed to be installed on seven ships of three different classes of ships.
- AIDSS: It stands for Advanced Indigenous Distress sonar system for submarines. It is distress sonar is an Emergency Sound Signaling Device.
- It is used to indicate that a submarine is in distress and enable quick rescue and salvage. It is also provided with a transponder capability.
- NACS: It stands for Near-field Acoustic Characterisation System. It determines the in-situ performance of SONAR systems used to find the frequency-dependent 3-D transmission and reception characteristics of SONAR.
- It is also used to measure magnitude and phase characteristics of SONAR transmission and reception electronics and the transducers.
- The NACS has been integrated with HUMSA-NG SONAR array and proved onboard Naval platforms. It will be fitted on all frontline ships.
Benefits of induction of these four systems
- Underwater surveillance capability of the Indian Navy will get a boost.
- Give fillip to India’s the quest for self-reliance in this critical area of technology.