Cognitive EW & LLMs: The Coming Age of AI-Driven Spectrum Dominance

by Bo Layer, CTO | May 28, 2025

Cognitive EW & LLMs: The Coming Age of AI-Driven Spectrum Dominance

The electromagnetic spectrum is the invisible high ground of modern warfare, and the key to owning it is cognitive electronic warfare (EW) systems that can adapt on the fly. We believe the next evolution in this domain is leveraging Large Language Models (LLMs) as the 'mission commander' for our EW platforms. It's a shift from reactive defense to proactive, AI-driven spectrum dominance.

The electromagnetic spectrum is the invisible high ground of modern warfare. For decades, the game has been about identifying and jamming enemy signals. But this reactive approach is no longer sufficient. Our adversaries are using agile, software-defined radios that can change their frequencies and waveforms in the blink of an eye. To compete, we need to move from simple, reactive jamming to proactive, AI-driven spectrum dominance. And the key to this is using Large Language Models (LLMs) as the 'mission commander' for our cognitive electronic warfare systems.

A traditional EW system relies on a library of known threats. If it sees a signal it recognizes, it can jam it. But what about a signal it has never seen before? This is where cognitive EW comes in. It can analyze a new signal in real-time, classify it, and generate a countermeasure. But even this is not enough. A truly intelligent system shouldn't just react to threats; it should anticipate them.

This is where the LLM comes in. By feeding the LLM high-level intelligence—the adversary's order of battle, their likely objectives, the current tactical situation—we can give the EW system a level of situational awareness that has never before been possible. The LLM can understand the 'why' behind the signals it's seeing. It can reason that, based on the current situation, the adversary is likely to use a specific type of datalink to guide a missile. It can then proactively task the EW system to jam that datalink before the missile is even launched.

This is a fundamental shift from defense to offense in the spectrum. Instead of waiting for the adversary to make a move, we can disrupt their operations before they even begin. We can create confusion, sow doubt, and force them into a reactive posture. We can control the tempo of the electronic battle, just as a skilled commander controls the tempo of a physical one.

At ROE Defense, we are developing the architecture to make this a reality. We are creating the LLMs that can understand the nuances of military strategy and the cognitive EW systems that can execute their commands with precision and speed. This is the future of spectrum dominance: a seamless fusion of high-level intelligence and low-level electronic effects, all orchestrated by an AI mission commander.