Rajendra radar

Rajendra radar. It is an indigenous passive electronically scanned array radar system developed by the Defence Research and Development Organisation for the Indian Army and the Indian Air Force. Designed as the fire control radar for the Akash missile system, it is a key component of India's multi-layered air defence network. The system is notable for its ability to track multiple targets simultaneously and guide several surface-to-air missiles in engagement.

Overview

The primary function of this system is to provide precise tracking and fire control for the Akash missile system against a variety of aerial threats, including fighter aircraft, helicopters, and cruise missiles. It operates in conjunction with the Central Acquisition Radar and Battery Level Radar within a networked air defence architecture. The radar's design emphasizes high reliability in electronic countermeasures environments, contributing to the strategic air defence capabilities of the Indian Armed Forces. Its development marked a significant milestone for the Electronics and Radar Development Establishment and the broader Defence Research and Development Organisation.

Technical specifications

This radar operates in the L band, providing good performance in adverse weather conditions and against ground clutter. It utilizes a passive electronically scanned array antenna, which allows for rapid, inertialess beam steering to track multiple targets. The system can simultaneously track up to 64 targets and engage the most threatening ones with Akash missile batteries. Key performance parameters include a detection range between 80 to 150 kilometers and the ability to handle high-density air raids, a capability validated during exercises like Exercise Gagan Shakti.

Development and variants

Development was led by the Electronics and Radar Development Establishment, a laboratory under the Defence Research and Development Organisation. The project evolved from earlier indigenous radar programs, benefiting from technologies developed for systems like the Indra radar. A significant variant is the Rajendra 3D radar, which is a standalone, medium-range surveillance version with a rotating antenna. This variant has been deployed with the Indian Air Force and was also showcased to international partners at events like the Aero India exhibition. Continuous upgrades have focused on improving electronic counter-countermeasures and network integration.

Operational history

The system entered service with the Indian Army and the Indian Air Force following successful user trials. It has been a core component of the Akash missile system regiments deployed for the defence of vital national assets. The radar has participated in major national exercises, including Exercise Gagan Shakti and Exercise Vayu Shakti, where it demonstrated its capability to integrate with other sensors like the Airborne Early Warning and Control System. Its performance has supported the Government of India's policy of strategic autonomy in defence technology.

Deployment and platforms

This radar is deployed on high-mobility Tatra truck platforms for the Indian Army, providing essential mobility for field formations. For the Indian Air Force, it is often integrated into fixed-site air defence complexes protecting airbases and other critical infrastructure. The naval application, known as Revathi radar, is derived from this technology and is installed on warships like the Kamorta-class corvette. Export versions have been offered to friendly nations, with interest reported from countries like Armenia and Vietnam.

Category:Radar