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System of systems

Discussion in 'Indian Defence Forum' started by RPK, Feb 5, 2013.

  1. RPK

    RPK SENIOR MEMBER

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    System of systems

    [​IMG]

    The Radar Seeker Test Evaluation Facility at the RCI.
    C.G. Balaji and his enterprising team are not given to exaggeration. When Balaji, Associate Director of the Research Centre Imarat (RCI), says that a seeker device in a missile is “a system of systems”, that its development involves multidisciplinary work and that “realisation of this product takes years”, or when M. Gangadhar, senior scientist, reveals that “a seeker accounts for 60 per cent to 70 per cent of the cost of the missile system” and that “it contributes more than 90 per cent to the kill”, they do not seem to be overstatements. Balaji and his team work in a massive building with a simple board that reads, “Radar Seeker Development Centre”.

    As we enter what is called an anechoic chamber, we are struck by its huge dimensions. At one end of this dark, cavernous chamber is a device called radar-based seeker. As the name implies, the seeker is a device in a missile that seeks out the target. It is used in interceptor missiles, surface-to-air missiles (SAMs) and air-to-air missiles, all of which attack specific targets. While an interceptor attacks and destroys a ballistic missile coming from an adversarial country, SAMs and air-to-air missiles attack enemy aircraft or helicopters. A seeker is used in the terminal guidance of a missile’s flight, that is, it is switched on in the final phase of the flight. “By using a seeker, we can get terminal accuracy and we can have a hit or near-hit. The weight of the seeker will vary according to the role it has to perform,” said Balaji.

    The seekers developed by Balaji and his team were used in the seven highly successful interceptor missile flights of the Defence Research and Development Organisation (DRDO). The team comprises Gangadhar, V. Ashok Reddy, S.B. Gayen, D. Niroop Singh, N.N. Murthy and S. Ramesh, all senior scientists. In these seven missions, the seeker acted as the interceptor’s “eye” and calculated the velocity, position and direction of the enemy missile. The seeker conveyed all this information to the on-board computers, which then directed the interceptor to manoeuvre itself close to the target ( Frontline, December 28, 2012).

    Balaji said: “Development of a seeker involves multidisciplinary work and it includes developing servo-systems, transmitters, sensing receiver, front-end receiver, and so on. These are all unique systems. Their development cost is enormous. Testing them is difficult and takes a lot of time. You have to plan to the minutest detail. Realisation of this product takes years. The time taken to manufacture them is high. In fact, a seeker is a system of systems,” he said. The purpose of setting up the anechoic chamber, he said, was to simulate open space, with the target missile flying in and an attacker, equipped with the seeker, speeding to destroy the target.

    The infra-red seeker, developed by the RCI, underwent a number of trials and achieved a major success in the anti-tank missile Nag, developed by the DRDO, G. Satheesh Reddy, Associate Director of the RCI, said. The RCI is working on a laser seeker. “It has also developed a millimetre-wave seeker, which has undergone trials in a Nag missile. After some trials, this seeker can be produced in numbers,” Satheesh Reddy said.

    The Terahertz Laboratory is doing innovative extra-mural work. It is developing a system on the basis of the terahertz spectrum (a thousand gigahertz is one terahertz), which can be used in the imaging of organs and in industrial quality assurance, satellite communication and astronomical studies. Arabindo Ghosh and V. Sarala, senior scientists, said this system could also be used to identify concealed explosives, contraband, non-metallic items and improvised explosive devices.

    A Special Correspondent
     
  2. IND151

    IND151 BANNED

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    thanks for info