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AESA Based Radar ship
Indian Navy all set to reveal the secret Radar ship specially designed to track long range ballistic missiles and air borne targets. The Project almost finished now and set to be floated into the sea by this fall. Indian Navy crews will run the ship while DRDO and some other scientists will operate the ship. Countries like US, Russia China already have such ships in their inventory which is a major part of the Ballistic missile interception program.
The ship was built by the Hindustan Shipyard limited in Visakhapatnam, The ships keel was laid on June 2014 as a project completion date set by December this year. Same like INS Arianth the Radar ship also monitored and funded by the Prime ministers office. The Ship will further boost India's anti ballistic missile shield, by providing exact information about the enemy missiles even at the longer range and higher altitude for mid course Interception.
The Ship houses two AESA radars, another set of telemetry scanners and associated systems. The Ship houses a large X Band AESA for long range target tracking and surveillance, Usually most of the X band AESA having range of more than 2000 kilometers for steady tracking. The reason behind adding the AESA in the ship is, it can be moved easily, due to earth's curvature, fixed land based Radar's lacks range and reliability. Since Ballistic missiles fly with the Earth's rotation to meet the target in short time.
The new X band AESA comes with state of art gallium nitrite technology, The GaN based T/R Modules requires less power to operate and highly reliable, optimized smaller in size and longer operational life. The 360 degree rotating heavy AESA is the Ships can provide clear information about incoming enemy threats even at longer range. The X band transmit and receive the data at the frequency level of 8.0 GHz to 12 GHz band.
Another is a S Band Radar, Which also provide search and tracking in another frequency range, Most nations uses the S Band to track very fast moving cruise missiles, and low flying sea skimmers. Most of the Missiles navigates very smart to escape from enemy Radar's. The S band AESA can track even those highly maneuvering missiles. Some of the Chinese cruise missiles has range of more than 1000 kilometers even they were nuke capable missiles. The latest Kolkata's MF STAR can track targets upto some 300 kilometers only.
Both S and X band can track all kind of airborne targets even flying at the range of some 2000 Kilometers. The ship also can provide target information's to the nearby ships about the incoming threats. The Ship can guide the land based PAD/AAD missiles to hit the ballistic missile targets at the mid course mostly if failed then terminal phase, Terminal passe can increase the interception probability of the missile if the mid course interception was failed.
The Ship possibly add one more Radar to find Low observable targets. It's reported that UHF radar's can able to track low observable targets like semi stealth fighter jets and stealth UAV's. However the UHF's Tracking range is some 500 kilometer or less. The DRDO's Radar ship can add the UHF for additional supports. However it's still not confirmed
Other systems like Telemetry scanners used for target acquisition and classification. which transmit and receive target information's from Tracking radar and classifies it into the mission computers. Like Fighter jets or Cruise missiles, Mostly telemetry used for spying purpose to receive information's from enemy activities. which gives communication supports to covert military agents for secure transmissions.
Israeli UHF Radar
The Ship is something bigger. The actual length is some 175 meters and displacement of more than 10,000 tons as described by the ship designer Vik Sandvik. The ship also carry a Helicopter for support missions. However the ship will not carry any weapon systems onboard. Usually one or two EO based CIWS used for self defense. The Ship officially called as Missile Range Instrumentation Ship.
Recent development in the Israeli Terra systems noted, Which would be a good competitor to be fitted in the Ship. IAI already announced that they have an export customer of the system. Terra is comprised with one UHF and S Band AESA radar constructed with GaN modules. Most of the DRDO's Radar systems are evolved from Israel like the LRTR and MPR radar systems. It's highly likely Terra would be placed in Indian MRIS ship.
source- Life of Soldiers: Navy set to reveal the secret Radar ship by end of this year
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