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The Defence Research and Development Organisation (DRDO) is moving to develop man-portable electronic intelligence modules, a compact system meant to pick up and analyse the signals that enemy radars or any other antennas emit. The tender has been issued by the Defence Electronics Research Laboratory (DRDL) located in Hyderabad. Electronic intelligence, or ELINT, is the practice of capturing signals from radars and other electronic equipment and studying them to work out what kind of system is operating and its technical characteristics are. A radar or an drone operator could be emitting…
The process begins with the antenna and receiver, which pick up signals across several frequency bands, since different radars work on different frequencies. The system then measures the signal's characteristics, including frequency, pulse width, the interval between pulses, the number of pulses sent in a given time, signal strength, direction of arrival and the modulation within the signal.