<ul data-eligibleForWebStory="false">South Korean researchers have developed a real-time sensor system to predict underwater noise generated by ships without expensive equipment.The system attaches to a ship's hull to monitor underwater radiated noise, crucial for naval stealth operations.The smart algorithm in the system calculates ship noise accurately, detects anomalies, and helps in early fault detection.The system, tested on real naval ships, not only aids in naval stealth but also offers benefits for commercial ships in maintenance and noise control.