Monday, 8 August 2011

INDIAN RADAR








Rajendra Radar 
Rajendra Multi Function  array radar system the designed at the Electronics and Radar Development Establishment (LRDE)  part of DRDO is currently in production at Bharat Electronics Limited. India's First president Dr. Rajendra Prasad this was on his name.

LRDE is working on the Rajendra III radar for the Indian Army. Rajendra III is a slewable phased array radar based on the T-72 chassis. As of 2007, the BLR-III vehicle on T-72 chasis was ready for a track test. Phased array antenna is fabricated at Bharat Electronics Limited (BEL), Ghaziabad. The Collimated beam pattern and s/s cure for all 16 spot frequencies has been taken.

 The current orders for the Rajendra and its derivatives are at least 32 units, considering the order for 2 Squadrons of the Akash system by the Indian Air force and the indent for 28 Weapon Locating Radars by the Indian Army.
The Indian Doppler Radar (INDRA) series of 2D radars were developed by India's DRDO for the Army and Air Force. The INDRA-I is a is a mobile surveillance radar for low level target detection while the INDRA-II is for ground controlled interception of targets.

INDRA-I is a 2D mobile surveillance radar for low level target detection. The radar is housed in two wheeled vehicles. Some of the main features are automated Track While Scan (TWS), integrated IFF and high scan rate for high speed target detection. The radar is produced by Bharat Electronics Limited and inducted into service. The INDRA-I was a landmark project for the DRDO, as it was the first large radar system designed by the organization and produced in number for the defence forces. The Indian Air Force operates thirty INDRA-I's whereas the Indian Army also has several.
INDRA-II

It is a variant of INDRA radar for ground controlled interception of targets. The radar uses pulse compression for detection of low flying aircraft in heavy ground clutter with high range resolution and ECCM capabilities. The radar has been produced by Bharat Electronics Limited and is used by Indian Air Force and Army. Seven INDRA-IIs have been ordered by the Indian Air Force.


Aerostat Radar
India has recently acquired Aerostat radars. The entire system is divided in major parts. Firstly, the aerostat balloon which has been acquired from Israel and second part is the payload on board the balloon which consists, advanced programmable radar (APR), Electronic Intelligence (ELINT), Communication Intelligence (COMINT) and V/UHF radio telephony equipment and Identification Friend or Foe (IFF). It has the capability to be integrated with AWACS and ground air defence environment and funtion as a command and control centre. Depending upon the payload the theethered balloon can be raised to the height between 10000 feet to 16000 feet.

The system gives a seamless radar cover of 300 km plus at low level along with good RT range and requisite ELINT. The system could be termed as static AWACS. Off course it comes with some vulnerabilities and limitations, like weather, wind speeds, lightning & thunder, launch & recovery periods are vulnerabilities. Its virtues also make it a prime target for enemy therfore it needs to be protected by exclusive air defence weapons. But we hope that the advantages of such system would outlast the limitations.
GreenPine Radar
India has recently acquired Aerostat radars. The entire system is divided in major parts. Firstly, the aerostat balloon which has been acquired from Israel and second part is the payload on board the balloon which consists, advanced programmable radar (APR), Electronic Intelligence (ELINT), Communication Intelligence (COMINT) and V/UHF radio telephony equipment and Identification Friend or Foe (IFF). It has the capability to be integrated with AWACS and ground air defence environment and funtion as a command and control centre. Depending upon the payload the theethered balloon can be raised to the height between 10000 feet to 16000 feet. The system gives a seamless radar cover of 300 km plus at low level along with good RT range and requisite ELINT. The system could be termed as static AWACS. Off course it comes with some vulnerabilities and limitations, like weather, wind speeds, lightning & thunder, launch & recovery periods are vulnerabilities. Its virtues also make it a prime target for enemy therfore it needs to be protected by exclusive air defence weapons. But we hope that the advantages of such system would outlast the limitations.


Sword Fish Radar
Swordfish is an Indian Long range tracking radar specifically developed to counter ballistic missile threat. It will be a part of India's ballistic missile program. First testing of this radar was in March 2009. Main aim of the test was to validate the capabilities of the indigenously developed Swordfish Long Range Tracking Radar (LRTR). "The missile to be hit will be fired from a longer distance than it was in the earlier test. DRDO tested whether the radar could track the incoming missile from that distance or not" said a member of the project.

Swordfish is an acknowledged derivative of the Israeli Green Pine long range radar, which is the critical
component of that country's Arrow missile defence system. [1] However, it differs from the Israeli system as it employs Indian Transmit Receive modules, signal processing, computers and power supplies. It is also more powerful than the base Green Pine system and was developed to meet India's specific BMD needs.

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