航空科学技术2025，Vol.36Issue(4)：9-16,8.DOI:10.19452/j.issn1007-5453.2025.04.002
面向航空电源辐射发射的混响室测试方法及其测量不确定度分析
Reverberation Chamber Based Radiated Emission Measurements of Aviation Power Supplies and Associated Uncertainty Analyses
摘要
Abstract
Owing to the appealing advantages(e.g.,low construction costs and large testing area)of the reverberation chamber(RC),it has been widely applied in electromagnetic compatibility(EMC)testing of varies equipment in aviation area,such as aviation power supplies.However,the effects caused by the statistical characteristics of RC-based measurements on the assessment of EMC performance are overlooked in existing standards.To overcome this limitation,a statistical model for RC-based radiated power measurement is established.Extensive RC-based measurements are performed in different scenarios,it is shown that the established model can provide accurate estimation of the measurement uncertainty.Based on this,the effects caused by different factors on measurement uncertainty are discussed and analyzed.In addition,a confidence interval-based method is proposed for risk assessment of the radiated emissions of power supplies.关键词
航空电源/电磁兼容/混响室/辐射发射/测量不确定度Key words
aviation power supply/electromagnetic compatibility/reverberation chamber/radiated emission/measurement uncertainty引用本文复制引用
薛威,孙静,高永明,付朝阳,高田..面向航空电源辐射发射的混响室测试方法及其测量不确定度分析[J].航空科学技术,2025,36(4):9-16,8.基金项目
航空科学基金(2022Z062053002) （2022Z062053002）
陕西省青年科技新星项目(2024ZC-KJXX-087) Aeronautical Science Foundation of China(2022Z062053002) （2024ZC-KJXX-087）
Young Star of Science and Technology Program of Shaanxi(2024ZC-KJXX-087) （2024ZC-KJXX-087）
