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*[[Indian Doppler Radar|INDRA]] series of 2D radars meant for the [[Indian Army|Army]] and the [[Indian Air Force|Air Force]] use. This was the first high power radar developed by the DRDO, with the Indra-I radar for the Indian Army, followed by Indra Pulse Compression (PC) version for the Indian Air Force, also known as the Indra-II, which is a low level radar to search and track low flying cruise missiles, helicopters and aircraft. These are basically 2D radars which provide range, and azimuth information, and are meant to be used as gapfillers. The Indra 2 PC has pulse compression providing improved range resolution. The series are used both by the [[Indian Air Force]] and the [[Indian Army]]<ref>[http://www.bharat-rakshak.com/LAND-FORCES/Army/Images/0145.jpg Indra-I radar, image copyright Bharat Rakshak] {{webarchive |url=https://web.archive.org/web/20090226074051/http://www.bharat-rakshak.com/LAND-FORCES/Army/Images/0145.jpg |date=26 February 2009 }}</ref>
*[[Rajendra Radar|Rajendra fire control radar]] for the [[Akash missile|Akash SAM]]: The Rajendra is a high power, [[Passive electronically scanned array]] radar (PESA), with the ability able to guide up to 12 Akash SAMs against aircraft flying at low to medium altitudes. The Rajendra has a detection range of 80 km with 18 km height coverage against small fighter sized targets and is able to track 64 targets, engaging 4 simultaneously, with up to 3 missiles per target. The Rajendra features a digital high speed signal processing system with adaptive moving target indicator, coherent signal processing, FFTs, and variable pulse repetition frequency. The entire PESA antenna array can swivel 360 degrees on a rotating platform. This allows the radar antenna to be rapidly repositioned, and even conduct all round surveillance.<ref>[http://www.bharat-rakshak.com/MISSILES/Images/Rajendra.jpg Rajendra Radar, image copyright Bharat Rakshak and DRDO] {{webarchive |url=https://web.archive.org/web/20090226074048/http://www.bharat-rakshak.com/MISSILES/Images/Rajendra.jpg |date=26 February 2009 }}</ref>
*[[Central Acquisition Radar (3D-CAR)|Central Acquisition Radar]], a state of the art planar array, S Band radar operating on the stacked beam principle. With a range of 180 km against fighter sized targets, it can [[track while scan]] 200 of them. Its systems are integrated on high mobility, locally built TATRA trucks for the Army and the Air Force; however it is meant to be used by all three services. Initially developed for the long-running Akash SAM system, seven were ordered by the Indian Air Force for their radar modernisation program, and two of another variant were ordered by the [[Indian Navy]] for their [[INS Kamorta (P28)|P-28 Corvettes]]. The CAR has been a significant success for radar development in India, with its state of the art signal processing hardware.<ref>{{cite web|url=http://www.acig.org/artman/uploads/os_car_001.jpg |title=JPEG image of the 3D CAR, image copyright Acig.org |access-date=2010-08-31}}</ref><ref>{{cite
*[[BEL Battle Field Surveillance Radar|BFSR-SR]], a 2D short range [[Battlefield surveillance radar|Battle Field Surveillance Radar]], meant to be man-portable. Designed and developed by the LRDE, the project was a systematic example of concurrent engineering, with the production agency involved through the design and development stage. This enabled the design to be brought into production quickly.<ref>{{cite web |author=Source |url=http://finance.indiainfo.com/news/2005/02/08/0802aerobel.html |title=BFSR orders and export push |publisher=Finance.indiainfo.com |date=2005-02-08 |access-date=2010-08-31 |url-status=dead |archive-url=https://web.archive.org/web/20090110195132/http://finance.indiainfo.com/news/2005/02/08/0802aerobel.html |archive-date=2009-01-10 }}</ref><ref>{{cite web|url=http://www.hinduonnet.com/holnus/001200708060340.htm |archive-url=https://web.archive.org/web/20071013161633/http://www.hinduonnet.com/holnus/001200708060340.htm |url-status=dead |archive-date=2007-10-13 |title=BEL to export anti-infiltration radar to Indonesia |publisher=Hinduonnet.com |date=2007-08-06 |access-date=2010-08-31 }}</ref> [[File:BFSR-SR with thermal imager.JPG|thumb|[[BEL Battle Field Surveillance Radar|BFSR-SR]]]]
*[[Swordfish Long Range Tracking Radar|Long Range Tracking Radar]]: The LRTR a 3D [[Active electronically scanned array|AESA]] was developed with assistance from [[Elta]] of [[Israel]], and is similar to Elta's GreenPine long range Active Array radar. The DRDO developed the signal processing and software for tracking high speed [[ballistic missile]] targets as well as introduced more ruggedisation. The radar uses mostly Indian designed and manufactured components such as its critical high power, L Band Transmit-Receive modules plus the other enabling technologies necessary for active phased array radars. The LRTR can track 200 targets and had a range of above {{convert|600|km|mi}} and can detect [[Intermediate-range ballistic missile|Intermediate Range Ballistic Missiles]]. The LRTR would be amongst the key elements of the Indian ABM system.<ref>{{cite web|url=http://www.hindu.com/2005/04/15/stories/2005041509810400.htm |archive-url=https://web.archive.org/web/20050420021916/http://www.hindu.com/2005/04/15/stories/2005041509810400.htm |url-status=dead |archive-date=2005-04-20 |title=Details of LRTR from 2004 |date=2005-04-15 |work=[[The Hindu]] |access-date=2010-08-31}}</ref>
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