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Low Level Light Weight Radar

Kumari Sonali

Low Level Light Weight Radar:

The Ministry of Defence has signed a contract with Bharat Electronic Limited (BEL) to procure Improved Low Level Light Weight Radar (LLLR-I) at a cost of approximately ₹ 770 Cr.

  • Low Level Light Weight Radar is a next-generation, multi-mission radar designed to detect and track different types of aerial targets.
  • The radar’s four antenna panels are mounted on tripods and are passively cooled.
  • This system does not require mechanical movement or liquid cooling.
  • It features a built-in self-test function to help identify technical issues.
  • It operates via a control and display unit (CDU) which allows operators to remotely control radar modes and view the air situation through a human-machine interface.
  • It uses four fixed phased-array antenna panels to provide complete 360-degree surveillance.
  • Technology:
    • Active Electronically Scanned Array (AESA) technology: The system uses Active Electronically Scanned Array (AESA) technology, which allows it to electronically direct radar beams rather than physically move the antenna.
    • It also incorporates Gallium Nitride (GaN) amplifiers and digital beamforming technology to improve radar performance.
    • Three-Dimensional Processing: It uses advanced three-dimensional processing capabilities to distinguish targets from unwanted radar returns and reduce the effects of multipath interference.
    • It is crucial for detecting small drones and other low-RCS (low radar cross-section) targets.
  • Tracking:
    • It can automatically track targets while continuing to scan the surrounding airspace through its Track While Scan capability.
    • It can also prioritise detected aerial targets, allowing the Army to identify threats that require attention.
    • Its monopulse tracking technique provides accurate target tracking in elevation.
    • It has ability to provide target information to weapon systems through wired or wireless communication links.
  • Electronic Counter-countermeasure (ECCM) Capabilities: It also incorporates ECCM capabilities, designed to help maintain radar performance in the presence of electronic interference.
  • Adoptability: It is light weight operable in plains, desert and high altitude terrain.
  • It has the capability of detecting and tracking fighter size targets and mini/ micro drone and also has additional capability of prioritizing aerial targets.