SIGNALAI·Jul 7, 2026, 4:00 AMSignal75Medium term

Active Sensing with Meta-Reinforcement Learning for Emitter Localization from RF Observations

Source: arXiv cs.AI

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Active Sensing with Meta-Reinforcement Learning for Emitter Localization from RF Observations

arXiv:2605.12569v2 Announce Type: replace-cross Abstract: Global navigation satellite system (GNSS) interference poses a serious threat to reliable positioning, especially in indoor and multipath-rich environments where source localization is highly challenging. In this paper, we formulate GNSS interference localization as an active sensing problem and propose a reinforcement learning (RL) framework in which an agent sequentially explores the environment to infer the position of an emitter source from radio frequency (RF) observations acquired with a 2x2 patch antenna. The localization task is

Why this matters
Why now

The increasing sophistication of AI and reinforcement learning, combined with the growing threat of GNSS interference, is driving innovation in active sensing for emitter localization.

Why it’s important

Reliable positioning is critical for both civilian infrastructure and military operations, making advanced GNSS interference localization technology a strategic imperative for national security and economic stability.

What changes

This research outlines a pathway to more resilient and autonomous systems capable of pinpointing GNSS interference sources, reducing vulnerability to jamming and spoofing attacks.

Winners
  • · Defense contractors
  • · GNSS receiver manufacturers
  • · AI/ML developers
  • · National security agencies
Losers
  • · Adversarial actors relying on jamming
  • · Systems highly dependent on unhardened GNSS
Second-order effects
Direct

Improved accuracy and speed in locating sources of GNSS interference, enhancing navigation system robustness.

Second

Reduced effectiveness of electronic warfare tactics aimed at disrupting positioning, potentially influencing military doctrine.

Third

Proliferation of active sensing AI in other critical infrastructure protection, leading to a new era of 'smart' defensive systems.

Editorial confidence: 90 / 100 · Structural impact: 60 / 100
Original report

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Read at arXiv cs.AI
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