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{{Short description|Indian defence research laboratory}}
{{Use dmy dates|date=December 2019}}
{{Use Indian English|date=December 2019}}
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|image =
|established = 1962
|city = [[
|research_field = Radar Systems
|type =
|director = Shri. P Radhakrishna
|staff =
|budget =
|operating_agency = [[DRDO]]
|affiliations =
|address = DRDO Complex, <br />C.V. Raman Nagar, <br />
|campus =
|website =
|footnotes =
|country=[[India]]}}
'''Electronics and Radar Development Establishment''' (LRDE) is a laboratory of the [[Defence Research & Development Organization]] (DRDO). Located in C.V. Raman Nagar, [[Bangalore]] its primary function is research and development of Radars and related technologies.<ref>{{cite web|url=http://www.drdo.org/labs/lrde/index.html |title=Electronics and Radar Development Establishment |accessdate=2008-02-08 |archiveurl=https://web.archive.org/web/20080131205942/http://www.drdo.org/labs/lrde/index.html |archivedate=2008-01-31 |url-status=dead }}</ref>▼
▲'''Electronics and Radar Development Establishment''' (LRDE) is a laboratory of the [[Defence Research and Development Organisation|Defence Research & Development
LRDE is sometimes mis-abbreviated as "ERDE". To distinguish between "Electrical" and "Electronic", the latter is abbreviated with the first letter of its Latin root (''lektra''). The same approach is used with for the [[DLRL]]. The LRDE is India's premier Radar design and development establishment and is deeply involved in Indian radar efforts. Its primary production partners include [[Bharat Electronics|Bharat Electronics Limited]] (BEL) and various private firms like [[Mistral Solutions]] in [[Bangalore|Bengaluru]], Astra microwave in [[Hyderabad]] and Data Patterns in [[Chennai]].▼
▲LRDE is sometimes mis-abbreviated as "ERDE". To distinguish between "Electrical" and "Electronic", the latter is abbreviated with the first letter of its Latin root (''lektra''). The same approach is used with for the [[DLRL]]. The LRDE is India's premier
==LRDE Radars==
The DRDO's initial projects included short range 2D systems (Indra-1), but it now manufactures high power 3D systems, [[Airborne Surveillance Platform|airborne surveillance]] and [[Fire-control radar|fire control radars]] as well. The publicly known projects include:
*[[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, [[
*[[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
*[[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 Systems|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
* 2D Low Level Lightweight Radar (LLLR) "'''Bharani'''" for the Army. The LLLR is a 2D radar with a range of 40 km against a 2<math>m^2</math> target, intended as a gapfiller to plug detection gaps versus low level aircraft in an integrated Air Defence Ground network. The LLLR makes use of Indra-2 technology, namely a similar antenna array, but has roughly half the range and is much smaller and a far more portable unit. The LLLR can [[track while scan]] 100 targets and provide details about their speed, azimuth and range to the operator. The LLLR makes use of the BFSR-SR experience and many of the subsystem providers are the same. Multiple LLLRs can be networked together. The LLLR is meant to detect low level intruders, and will alert Army Air Defence fire control units to cue their weapon systems.<ref>{{cite web|url=http://media.bharat-rakshak.com/aero/main.php?g2_itemId=1355 |title=LLLR Specifications |publisher=Media.bharat-rakshak.com |date=2007-01-18 |
*[[File:
*[[DRDO AEW&CS|'''Netra AEW&C''']]: The AEWACS aircraft has an [[active electronically scanned array]] (AESA) primary radar with IFF. The system will also have ESM (Electronic Support Measures) and CSM (Communications Support Measures) ability. Datalinks to network the AEW&CS with fighters, and ground-based control systems will also be provided, as will be the SATCOM (Satellite Communication System). The aircraft will also have a comprehensive self-defence suite. The avionics suite will be linked via a datahandling system, controlled by Mission computers.
*
*'''Divine Eye/Divyachakshu''': A through-barrier imaging radar capable of detecting movement through walls.<ref>{{Cite web |last=Gowda |first=Rakshith |date=2024-10-24 |title=Bengaluru building collapse: ‘Divine Eye’ a boon for rescue teams |url=https://www.newindianexpress.com/cities/bengaluru/2024/Oct/24/bengaluru-building-collapse-divine-eye-a-boon-for-rescue-teams |access-date=2024-12-18 |website=The New Indian Express |language=en}}</ref>
Apart from the above, the DRDO has also several other radar systems currently '''under development''' or in trials. The systems on which publicly available information is available include:
*
* According to a [[WION]] report dated 30 June 2025, LRDE has successfully developed India's first [[photonic radar]] and is preparing for testing.<ref>{{Cite web |last=Linganna |first=Girish |date=2025-06-30 |title=DRDO’s photonic radar: India’s light weapon shakes China and Pakistan |url=https://www.wionews.com/world/drdo-s-photonic-radar-india-s-light-weapon-shakes-china-and-pakistan-1751263546251 |access-date=2025-06-30 |website=Wion |language=en}}</ref>
▲* Air Defence Tactical Control Radar (ADTCR): The Air Defence Tactical Control Radar (ADTCR) is a 3D AESA radar. It is developed by Electronics and Radar Development Establishment (LRDE), a laboratory of [[DRDO]] which is being developed for Indian Army. Air Defence Tactical Control Radar (ADTCR) is used for volumetric surveillance, detection, tracking and friend/foe identification of aerial targets of different types, and transmission of prioritised target data to multiple command posts/ weapon systems. The radar is capable of detecting very small targets and low flying targets.It is capable of tracking 100 aerial targets at a time. It has a range of 500 km (maximum).
==Products==
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*[[BEL Battle Field Surveillance Radar]] (Short Range)
*[[BEL Weapon Locating Radar]]
*
*[[Divyachakshu Through Barrier Imaging Radar]]
==References==
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{{DEFAULTSORT:Electronics And Radar Development Establishment}}
[[Category:Defence Research and Development Organisation laboratories]]
[[Category:Research institutes in
[[Category:
[[Category:Research institutes established in 1962]]
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