Stemming the EMI Tide in Submarines (Download)

Read this article online.

Electromagnetic interference (EMI) may affect the performance of any onboard electronic systems in a submarine. Key points about EMI in these vessels include:

• Sources of EMI: EMI can originate from various sources, including onboard equipment, external electromagnetic fields, and even natural phenomena like lightning.¹
• Impact on systems: EMI may disrupt communication systems, navigation equipment, and other critical electronic systems on a submarine. This can lead to malfunctions or degraded performance.²
• Mitigation strategies: To minimize EMI, submarines use shielding, grounding, and filtering techniques. Proper cable management and the use of EMI-resistant materials are also essential.³
• Standards and regulations: The Navy has specific standards and procedures for managing EMI, such as the MIL-STD-461F and MIL-STD-464C, which outline requirements for electromagnetic compatibility and emissions.⁴
• Technological advances: Modern submarines are increasingly using advanced technologies to detect and mitigate EMI, ensuring the reliability and safety of their operations.⁵