Detectors Correlation Factor of Broadband Measurements Used in Automotive EMC: 2006 IEEE International Symposium on EMC

摘要

Current CISPR12 broadband test limits are based on a 20 dB correlation factor between peak and quasi-peak measurements at 120 kHz bandwidth. This value is based on the experimental data accumulated in several countries. Electric/hybrid vehicle power handling technologies produce new types of impulsive noise that call for a review of the current correlation factor. This document provides analytical insight on the empirical 20 dB correlation factor. Recommendations accounting for the new power technologies are given at the end of the paper.