Networking of Tracking Radars of Two Different SAM Weapons to Protect the Missile in Intensive Jamming Environment

G. Kumaraswamy Rao; Sreehari Rao; Sudhir Kumar Chaudhuri

doi:10.14429/dsj.68.10993

G. Kumaraswamy Rao Bharat Institute of Engineering and Technology, Hyderabad - 501 510, India
Sreehari Rao Bharat Institute of Engineering and Technology, Hyderabad - 501 510, India
Sudhir Kumar Chaudhuri Bharat Institute of Engineering and Technology, Hyderabad - 501 510, India

DOI: https://doi.org/10.14429/dsj.68.10993

Keywords: Surface-to-air missile, Networking, Tracking radar, Electronic counter measure, Command line of sight guidance

Abstract

Many countries including India use the Russian made SAM-3 (Pechora) surface-to-air missile (SAM) weapon systems to protect their strategic and tactical infrastructure. The mathematical computations done in this paper, conclusively proves that SA-125 low-blow tracking radar of Pechora is vulnerable to jamming. A project was undertaken to overcome the jamming vulnerability of Pechora aiming to design and develop an electronic counter counter measure system. This system networked the Pechora tracking radar with a western tracking radar, Flycatcher, developed by HSA Holland. The latter radar works in a MMW band. When jamming (x band) is employed by enemy aircraft the Low blow radar failed to provide target coordinates. But the flycatcher tracking radar which is tracking in Ka band provided the tracking coordinates (after parallax correction) to the command guidance computer. This way the missile guidance is protected until missile warhead in missile blasts near the target. Extensive trials carried out with a number of aircraft sorties proved the success of this developed system against jamming.

Author Biographies

G. Kumaraswamy Rao, Bharat Institute of Engineering and Technology, Hyderabad - 501 510, India

Prof. G. Kumaraswamy Rao currently working as Professor at Bharat Institute of Engineering & Technology, Hyderabad. He retired as Scientist ‘H’ and Director, Defence Electronics Research Laboratory, Hyderabad. He was the head of the Electronics Group for the Trishul and Akash weapon systems. He was responsible for the design and development of Radar Guidance System for Trishul. He was also the Program Director of Integrated Electronic Warfare Systems for Army, Navy and Signal Intelligence Directorate.

In the current study, he is instrumental in formulating the concept (based on the requirement of IAF), developing the system and carrying the field trials.

Sreehari Rao, Bharat Institute of Engineering and Technology, Hyderabad - 501 510, India

Dr R. Sreehari Rao obtained BE from Andhra University, MTech from IIT Kharagpur and PhD from IIT Madras. Presently working as Director (R&D) at Bharat Institute of Engineering & Technology, Hyderabad. He retired as Distinguished Scientist and Chief Controller R&D, DRDO, Delhi. He has guided the activities of number of defence labs. of DRDO.

In the current study, he has reviewed the design of this system critically, and provided the inputs for necessary modifications so that the full fledged system is practically realised.

Sudhir Kumar Chaudhuri, Bharat Institute of Engineering and Technology, Hyderabad - 501 510, India

Dr Subir Kumar Chaudhuri, FNAE obtained B.E.E. from Jadavpur University. MTech from IIT Madras and PhD from Cranfield Institute of Technology, United Kingdom. Presently working as Director BIET. He retired as Scientist ‘H’ and Director, Research Centre Imarat, Hyderabad. He established Hardware-In-loop Simulation Lab at RCI. He was responsible for design and development onboard mission software for Inertial Guided Missiles. He developed advanced simulation center with high fidility motion simulations for Agni, Prithvi, Akash and Trishul weapon systems.

In the current study, he is involved in designing the interfaces between the SAM - 3 weapon and the developed system.