Abstract
In this paper, different techniques and measures are described and discussed that are effective to reduce risks related to electromagnetic disturbances in mission- or safety-critical systems. The aim of these techniques and measures is to make a system EMI-resilient or fault-tolerant with respect to EMI. Whenever a fault occurs within the system, the techniques and measures should either allow that the system continues to work in a safe manner (possibly with reduced performance) or trigger that the system is switched to a safe-state. The techniques and measures align with the well-proven techniques and measures described in IEC 61508, the main standard in the field of Functional Safety. It is described how they have to be modified or optimized to be effective for EMI. At the end of the paper, the use of inversion and spatial diversity is studied in more detail, thereby giving guidance on possible pitfalls.
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