4 new SONAR systems of the Indian Navy

a. Abhay, Humsa UG, NACS, AIDSS

b. Ajay, Humsa UG, NACS, AIDSS

c. Vijay, Humsa UG, NACS, AIDSS

d. None of the above

 

The Indian Navy on 18^th Nov 2016 inducted 4 types of indigenously developed SONAR systems which can boost the underwater surveillance capabilities

• The four sonars have been designed and developed by NPOL/ Naval Physical & Oceanographic Laboratory, a Kochi based lab of the DRDO

The four Sonar system are as follows.

1. Abhay is an advanced active cum passive integrated SONAR system which is designed and developed for smaller platforms such as shallow water crafts and coastal surveillance/patrol vessels, It can detect, localise, classify and track sub surface and surface targets in active and passive modes of operation
2. Humsa UG is designed for upgrading the existing HUMSA Sonar system of the Indian Naval platforms. The system will be installed in seven ships of three different classes of ships
3. NACS assesses the in-situ performance of the SONAR systems which is used to find frequency dependent 3-D transmission and reception characteristic of the sensor. It also measures the magnitude and phase characteristics of the Sonar transmission and reception electronics and the transducers
4. AIDSS stands for Near Field Acoustic Characterisation System which is a distress SONAR. It is an Emergency Sound Signalling Device used to indicate the submarine in distress and ensure quick rescue and salvage

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