Indian Doppler Radar
Encyclopedia
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 mobile surveillance radar for low level target detection while the INDRA-II is for ground controlled interception of targets.
(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.
) and are being used by the Indian Armed Forces
. A few systems have been exported to Sri Lanka and have been used to detect planes of the LTTE's air wing
.
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
DRDO for the Army
Indian Army
The Indian Army is the land based branch and the largest component of the Indian Armed Forces. With about 1,100,000 soldiers in active service and about 1,150,000 reserve troops, the Indian Army is the world's largest standing volunteer army...
and Air Force
Indian Air Force
The Indian Air Force is the air arm of the Indian armed forces. Its primary responsibility is to secure Indian airspace and to conduct aerial warfare during a conflict...
. The INDRA-I is a mobile surveillance radar for low level target detection while the INDRA-II is for ground controlled interception of targets.
INDRA-I
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 ScanTrack while scan
The track while scan is a mode of radar operation in which the radar allocates part of its power to tracking the target or targets while part of its power is allocated to scanning, unlike the straight tracking mode, when the radar directs all its power to tracking the acquired targets...
(TWS), integrated IFF and high scan rate for high speed target detection. The radar is produced by Bharat Electronics Limited
Bharat Electronics Limited
Bharat Electronics Limited is a state-owned electronics company with about nine factories, and few regional offices in India. It is owned by the Indian Government & primarily manufactures advanced electronic products for the Indian Armed Forces.BEL is one of the eight PSUs under Ministry of...
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.Features
- Fully coherent system
- Frequency agility
- Pulse compression
- Advanced signal processing using MTD and CFAR Techniques
- Track while scan for 2-D tracking
- Full tracking capabilities for manoeuvering targets
- Multicolour PPI Raster Scan Display, presenting both MTI and Synthetic Video
- Integral IFF
- Ease of transportation and fast deployment
Current status
Indian Doppler Radars are in production at BEL (Bharat Electronics LimitedBharat Electronics Limited
Bharat Electronics Limited is a state-owned electronics company with about nine factories, and few regional offices in India. It is owned by the Indian Government & primarily manufactures advanced electronic products for the Indian Armed Forces.BEL is one of the eight PSUs under Ministry of...
) and are being used by the Indian Armed Forces
Indian Armed Forces
The Indian Armed Forces are the military forces of the Republic of India. They consist of the Army, Navy and Air Force, supported by three paramilitary forces and various inter-service institutions such as the Strategic Forces Command.The President of India is...
. A few systems have been exported to Sri Lanka and have been used to detect planes of the LTTE's air wing
Air Tigers
The Air Tigers was the air-wing of the Liberation Tigers of Tamil Eelam , who used it against the Government of Sri Lanka...
.
Current operators
- Indian Air ForceIndian Air ForceThe Indian Air Force is the air arm of the Indian armed forces. Its primary responsibility is to secure Indian airspace and to conduct aerial warfare during a conflict...
- Indian ArmyIndian ArmyThe Indian Army is the land based branch and the largest component of the Indian Armed Forces. With about 1,100,000 soldiers in active service and about 1,150,000 reserve troops, the Indian Army is the world's largest standing volunteer army...
- Sri Lankan Air Force
System characteristics
- Range up to 90 km (for small sized fighter aircraft)
- Height coverage 35 m to 3000 m subject to radar horizonRadar horizonThe radar Horizon is a critical area of performance for aircraft detection systems that is defined by the distance at which the radar beam raise enough above the Earth surface to make detection of a target at low level impossible. It is associated with the low elevation region of performance and...
- Probability of detection : 90% (Single scan)
- Probability of false alarm: 10E-6
- Track While Scan (TWS) for 2D tracking
- Capability to handle 200 tracks
- Association of primary and secondary targets
- Automatic target data transmission to a digital modem/networking of radars
- Deployment time of about 60 minutes