Electronic “Fingerprints” in Modern SIGINT: How Aircraft Are Identified by Radar and Datalink Signatures Electronic “Fingerprints” in Modern SIGINT Radar & datalink signatures as an identification layer — from early warning to fusion-based air defense. Responsible use note: This article explains concepts at a high level for education and policy/technology literacy. It does not provide actionable instructions for interference, evasion, or targeting. 1) What is an “electronic signature” in defense? In military sensing and intelligence, an electronic signature is the distinctive pattern of measurable emissions and behaviors produced by a platform’s electronics. Think of it as a machine-readable identity trace that can complement radar returns, infrared cues, and visual recognition. In practice, “signature” is multi-domain. But SIGINT focuses on sig...
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