Abstract
In this paper we present a method to calculate estimated values for diagnostic coverage and false alarm rates of two channel redundant sensor systems. Avoiding time-consuming methodologies going into detail of system-sub-block failure rates and detailed fault cases we show a worst-case approach based on statistical methods. Diagnostic coverage and false alarm rates are important to develop a safety concept and to perform a functional safety analysis for sensor systems in safety critical applications. The proposed methodology additionally enables global sensor system optimizations including these dependability requirements.
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